| Scientific
Name |
Common
Name |
Origin,
if non-native |
Habitat |
Blooming
in |
| FERNS AND THEIR ALLIES |
|
|
|
| BLECHNACEAE |
Chain Fern family |
|
|
|
| Woodwardia fimbriata |
Giant chain fern |
|
Wet places |
|
|
|
|
|
|
| DRYOPTERIDACEAE |
Wood
Fern Family |
|
|
|
| Dryopteris
arguta |
Wood
Fern |
|
Open,
wooded slopes |
|
|
|
|
|
|
| EQUISETACEAE |
Horsetail
Family |
|
|
|
| Equisetum
arvense |
Common
horsetail |
|
Moist
disturbed sites |
|
| Equisetum
hyemale ssp. affine |
Scouring
rush |
|
Streams;
moist, sandy or gravelly areas |
|
|
|
|
|
|
| POLYPODIACEAE |
Polypody
Family |
|
|
|
| Polypodium
californicum |
|
|
Shaded
canyons, streambanks |
|
|
|
|
|
|
| PTERIDACEAE |
Maidenhair
Fern Family |
|
|
|
| Adiantum
jordanii |
Maidenhair
fern |
|
Shaded
hillsides, moist woods |
|
| Pellaea
andromedifolia |
Coffee
fern |
|
Rocky
or dry sites |
|
| Pellaea
mucronata |
Bird's-food
fern |
|
Rocky
or dry sites |
|
| Pentagramma
triangularis |
Goldenback
fern |
|
Shaded
slopes or rocky sites |
|
|
|
|
|
|
| CONIFERS |
|
|
|
|
| PINACEAE |
Pine
Family |
|
|
|
| Pinus
sabiniana |
Gray
pine |
|
Foothill
woodland, chaparral |
April-May |
|
|
|
|
|
| FLOWERING
PLANTS |
|
|
|
| DICOTYLEDONS |
|
|
|
|
|
|
|
|
|
| ACERACEAE |
Maple
Family |
|
|
|
| Acer macrophyllum |
Bigleaf
maple |
|
Along
streambanks and canyon floors |
April-May |
|
|
|
|
|
| ANACARDIACEAE |
Sumac
Family |
|
|
|
| Rhus
trilobata |
Squaw-bush |
|
Common
in canyons and creek beds, dry slopes and thickets |
March-April |
| Toxicodendron
diversilobum |
Poison
oak |
|
Very
abundant in low places, thickets, chaparral and woodland |
April-May |
|
|
|
|
|
| APIACEAE |
Celery
Family |
|
|
|
| Angelica
californica |
Angelica |
|
Dry
slopes |
June |
| Anthriscus
caucalis |
Bur-chervil |
Native
to Europe |
Disturbed
areas, shady places |
April-June |
| Apiastrum
angustifolium |
Wild
celery |
|
Chaparral |
March-April |
| Conium
maculatum |
Poison
hemlock |
|
Moist,
especially disturbed, places |
April-June |
| Coriandrum
sativum |
Coriander,
cilantro, Chinese parsley |
Native
to southern Europe |
Disturbed
areas |
May-July |
| Daucus
pusillus |
Rattlesnake
weed |
|
Rocky
or sandy places |
April-June |
| Foeniculum
vulgare |
Fennel |
|
Roadside |
June-October |
| Ligusticum
apiifolium |
Celery-leaved
lovage |
|
Meadows,
scrub or woods |
June-July |
| Lomatium
californicum |
California
rock parsnip |
|
Woodland,
brushy slopes |
April-June |
| Lomatium
dasycarpum |
Lace
parsnip |
|
Rocky
chaparral, woodland |
March-June |
| Lomatium
macrocarpum |
Large
lace parsnip |
|
Rocky
chaparral, woodland |
April-June |
| Lomatium
utriculatum |
Bladder
parsnip |
|
Open
grassy slopes, meadows, woodland |
February-May |
| Perideridia
kelloggii |
Squaw
root |
|
Open
grassland |
July-August |
| Sanicula bipinnata |
Poison sanicle |
|
Open grassland, pine-oak woodland |
April-May |
| Sanicula bipinnatifida |
Purple
sanicle |
|
Open
grassland, pine-oak woodland |
March-May |
| Sanicula
crassicaulis |
Gamble
weed |
|
Open
slopes, woodlands |
March-May |
| Torilis
arvensis |
|
Native
to Europe |
Disturbed
places |
May-June |
| Torilis
nodosa |
Hedge
parsley |
Native
to Europe |
Disturbed
places |
April-June |
| Yabea
microcarpa |
|
|
Grassy
slopes, chaparral, woodland |
March-June |
|
|
|
|
|
| ARISTOLOCHIACEAE |
Pipevine
Family |
|
|
|
| Aristolochia californica |
California
pipe vine |
|
Streamsides,
chaparral |
January-April |
|
|
|
|
|
| ASCLEPIADACEAE |
Milkweed
Family |
|
|
|
| Asclepias
cordifolia |
Purple
milkweed |
|
Rocky
slopes, chaparral |
May-July |
| Asclepias
fascicularis |
Narrow-leaved
milkweed |
|
Dry
ground |
June-September |
|
|
|
|
|
| ASTERACEAE |
Aster
or Sunflower Family |
|
|
|
| Achillea
millefolium |
Yarrow |
|
Open,
grassy areas |
March-June |
| Achyrachaena
mollis |
Blowwives |
|
Grassy
sites |
April-May |
| Agoseris
grandiflora |
California
dandelion |
|
Grasslands,
shrubland, woodland |
May-July |
| Agoseris
heterophylla |
Mountain
dandelion |
|
Open,
grassy slopes and flats |
March-May |
| Anthemis
cotula |
Mayweed |
|
Disturbed
sites |
May-July |
| Artemisia
douglasiana |
Mugwort |
|
Open
to shady places, often in drainages |
June-October |
| Aster
radulinus |
Broad-leaved
aster |
|
Dry
woods |
July-October |
| Baccharis
pilularis |
Coyote
bush |
|
Common
on hillsides and canyons |
August-December |
| Baccharis
salicifolia |
Mule-fat |
|
Canyon
bottoms, moist streamsides |
March-July |
| Brickellia
californica |
California
brickellia |
|
Diverse
dry habitats |
August-October |
| Calycadenia
ciliosa |
Rosin
weed |
|
Open,
dry meadows, hillsides |
June-September |
| Calycadenia
pauciflora |
Small-flowered
calycadenia |
|
Open,
dry meadows, hillsides |
July-September |
| Carduus
pycnocephalus |
Italian
thistle |
Native
to southern Europe |
Pastures,
waste areas |
May-July |
| Centaurea
melitensis |
Tocalote |
Native
to Europe |
Disturbed
fields, open woods |
April-June |
| Centaurea solstitialis |
Yellow star thistle |
Native
to southern Europe |
Pastures,
disturbed grassland or woodland |
May-October |
| Chaenactis
glabriuscula var. heterocarpha |
|
|
Open
slopes, ridges |
April-June |
| Chamomilla
suaveolens |
Pineapple
weed |
Native
to NW Northern America, NE Asia |
Disturbed
sites, footpaths, grazed land |
April-August |
| Conyza
canadensis |
Horseweed |
|
Disturbed
sites |
September-Oct |
| Cotula
australis |
Brass
buttons |
Native
to Australia |
Disturbed
sites |
January-May |
| Ericameria
arborescens |
Golden
fleece |
|
Woodland,
chaparral |
August-November |
| Erigeron
foliosus var. hartwegii |
Narrow-leaved
daisy |
|
Grassy
or brushy slopes |
May-July |
| Erigeron
inornatus |
California
rayless daisy |
|
Chaparral,
rocky sites |
June-September |
| Eriophyllum
lanatum var. achillaeoides |
Woolly sunflower |
|
Dry,
often rocky sites |
May-July |
| Euthamia
occidentalis |
Western
goldenrod |
|
Streambanks |
September-November |
| Filago
californica |
California
filago |
|
Bare
or grassy places, drainages |
March-June |
| Filago
gallica |
Narrow-leaved
filago |
Native
to Europe |
Bare
or grassy places |
April-June |
| Gnaphalium
californicum |
Green
cudweed |
|
Dry
open or wooded hills |
January-July |
| Gnaphalium
canescens ssp.beneolens |
Fragrant
everlasting |
|
Open slopes,
ridges |
July-November |
| Grindelia
camporum var. camporum |
Great
Valley grindelia |
|
Fields,
roadsides |
August-September |
| Gutierrezia
californica |
San
Joaquin matchweed |
|
Grasslands,
slopes, outcrops |
December |
| Helianthella
californica |
California
helianthella, perennial little sunflower |
|
Grasslands |
April-June |
| Helianthus
californicus |
California
sunflower |
|
Dry,
rocky soils, streambanks |
June-Aug |
| Hemizonia
congesta ssp. luzulifolia |
Field
tarweed |
|
Grasslands,
fallow fields |
September-October |
| Hesperevax
acaulis |
|
|
Sandy
slopes, flats, sometimes burns |
|
| Hesperevax
sparsiflora |
|
|
Sandy
soils; dry, open areas |
March-May |
| Hieracium
albiflorum |
White
hawkweed |
|
Dry
forests |
June-August |
| Hypochaeris
glabra |
Smooth
cat's-ear |
Native
to Europe |
Disturbed
sites |
May-June |
| Lactuca
serriola |
Prickly
lettuce |
Native
to Europe |
Disturbed
open areas |
September-October |
| Lagophylla
ramosissima |
Common
hareleaf |
|
Dry
habitats |
May-October |
| Madia
elegans ssp. vernalis |
Common
madia |
|
Grassy
sites, valleys, foothills |
March-June |
| Madia
exigua |
Threadstem
madia |
|
Grasslands,
open woodlands |
May-July |
| Madia
gracilis ssp. gracilis |
Slender
tarweed |
|
Grasslands,
woodlands |
April-August |
| Malacothrix
floccifera |
Woolly
malacothrix |
|
Open
burns, chaparral |
May-June |
| Micropus
californicus |
Slender
cottonweed |
|
Dry
or moist, bare or grassy sites |
March-June |
| Psilocarphus
tenellus |
Slender
woollyheads |
|
Dry
slopes, generally on disturbed soil |
April-June |
| Rafinesquia
californica |
California
chicory |
|
Shrubby
slopes, open woods, common after fires |
April-July |
| Rigiopappus
leptocladus |
|
|
Grassy
areas or among shrubs |
April-June |
| Senecio
vulgaris |
Annual
groundsel |
Native
to Europe |
Disturbed
sites |
Flowers
in most months |
| Silybum
marianum |
Milk
thistle |
Native
to southern Europe |
Roadsides,
pastures, waste areas |
May-July |
| Soliva
sessilis |
Common
soliva |
Native
to South America |
Disturbed
sites |
March-June |
| Sonchus
asper ssp. asper |
Sow-thistle |
Native
to Europe |
Slightly
moist waste places |
Flowers
in most months |
| Sonchus
tenerrimus |
Slender
sowthistle |
|
Disturbed
sites |
|
| Stephanomeria
virgata |
Twiggy
wreath plant |
|
Dry,
open slopes |
July-November |
| Uropappus
lindleyi |
|
|
Grassy
areas, woods, chaparral |
April-June |
| Wyethia
helenioides |
Foothill
mule-ears |
|
Open
grassland, shrubland |
March-April |
|
|
|
|
|
| BORAGINACEAE |
Borage
Family |
|
|
|
| Amsinckia
menziesii var. intermedia |
Fiddleneck |
|
Open,
generally disturbed sites |
March-June |
| Cryptantha
flaccida |
Flaccid
cryptantha |
|
Open,
dry sites |
April |
| Cynoglossum
grande |
Large-leaved
hound's tongue |
|
Shaded
or open sites, woodland or chaparral |
March-June |
| Pectocarya
pusilla |
Little
pectocarya |
|
Dry
sites in grassland, woodland |
April |
| Plagiobothrys
canescens |
Valley
popcorn flower |
|
Grassland,
woodlands |
March-May |
| Plagiobothrys
nothofulvus |
Popcorn
flower |
|
Grassland,
woodlands |
March-May |
| Plagiobothrys
tenellus |
Small
popcorn flower |
|
Dry
slopes in grassland, scrub, woodland |
March-May |
|
|
|
|
|
| BRASSICACEAE |
Mustard Family |
|
|
|
| Arabis
modesta |
Modest rock
cress |
|
Steep slopes,
cliffs |
April-May |
| Arabis
modesta ssp. rollins |
|
|
Dry steep
slopes, outcrops |
March-June |
| Athysanus
pusillus |
Sandweed |
|
Grassy,
open slopes, rocky outcrops |
March-June |
| Barbarea
orthoceras |
|
|
Damp
meadows, streambanks, moist woods |
May-September |
| Barbarea
vulgaris |
Winter-cress |
Native
to Eurasia |
Disturbed
sites |
April-May |
| Brassica
juncea |
|
|
Fields,
disturbed sites |
April |
| Brassica
nigra |
Black
mustard |
Native
to Europe |
Fields,
disturbed sites |
April-June |
| Capsella
bursa-pastoris |
Shepherd's-purse |
Native
to Europe |
Disturbed
sites |
Flowers
all year |
| Cardamine californica var. integrifolia |
California toothwort, milkmaids |
|
Shaded
sites, canyons, woods |
February-April |
| Cardamine
oligosperma |
Annual
bittercress |
|
Shady
banks, creek bottoms |
March-July |
| Cardamine
pennsylvanica |
Pennsylvania
bittercress |
|
Shady
banks, creek bottoms |
May-June |
| Cardaria
draba |
Hoary-cress |
Native
to Europe |
Disturbed
sites |
March-June |
| Descurainia
sophia |
Tansy-mustard |
Native
to Eurasia |
Disturbed
sites |
|
| Draba
verna |
Whitlow-grass |
Native
to Europe |
Open
or disturbed sites |
February-May |
| Erysimum
capitatum |
Wallflower |
|
Many
habitats |
March-July |
| Guillenia
lasiophylla |
California
mustard |
|
Dry,
open, sometimes disturbed sites |
March-June |
| Hirschfeldia
incana |
Short
pod mustard |
Native
to Eurasia |
Creek
bottoms, disturbed sites |
May-October |
| Lepidium
strictum |
Peppergrass |
Native
to South America |
Disturbed
sites |
March-May |
| Sinapis
arvensis |
Charlock |
Native
to Eurasia |
Disturbed
sites |
March-October |
| Sisymbrium
altissimum |
Tumble-mustard |
Native
to Europe |
Disturbed
sites, fields |
May-July |
| Sisymbrium
officinale |
Hedge-mustard |
Native
to Europe |
Disturbed
sites |
April-July |
| Thysanocarpus
curvipes |
Lace
pod |
|
Slopes,
moist meadows |
March-May |
| Tropidocarpum
gracile |
Keel-pod |
|
Grassy
slopes and open areas |
March-May |
|
|
|
|
|
| CALYCANTHACEAE |
Calycanthus
Family |
|
|
|
| Calycanthus
occidentalis |
Spice
bush |
|
Moist
canyon floors and streams |
April-August |
|
|
|
|
|
| CAMPANULACEAE |
Bellflower
Family |
|
|
|
| Githopsis
specularioides |
Common
blue cup |
|
Chaparral,
oak woodlands |
April-June |
| Triodanis
biflora |
Venus
looking-glass |
|
Disturbed
sites |
April-June |
|
|
|
|
|
| CAPRIFOLIACEAE |
Honeysuckle
Family |
|
|
|
| Lonicera
interrupta |
Chaparral
honeysuckle |
|
Dry
slopes, ridges |
May-July |
| Sambucus
mexicana |
Blue
elderberry |
|
Streambanks |
March-September |
| Symphoricarpos
mollis |
Trailing
snowberry |
|
Ridges,
slopes |
April-June |
|
|
|
|
|
| CARYOPHYLLACEAE |
Pink
Family |
|
|
|
| Cerastium
glomeratum |
Mouse-ear
chickweed |
Native
to Europe |
Dry
hillsides, grasslands, chaparral, disturbed sites |
February-May |
| Minuartia
douglasii |
Douglas'
sandwort |
|
Rocky slopes
in chaparral |
April-June |
| Petrorhagia
dubia |
|
Native
to Europe |
Disturbed
sites, woodland savanna |
May |
| Sagina
apetala |
Dwarf
pearlwort |
|
Sandy
waste areas, streamsides |
May |
| Silene
gallica |
Common
catchfly |
Native
to Europe |
Fields,
disturbed sites |
February-June |
| Stellaria
media |
Common
chickweed |
Native
to Europe |
Oak
woodlands, meadows, disturbed sites |
March-June |
| Stellaria
nitens |
Shining
chickweed |
|
Streambanks,
open woodlands, disturbed sites |
March-June |
|
|
|
|
|
| CHENOPODIACEAE |
Goosefoot
Family |
|
|
|
| Chenopodium
californicum |
Perennial
goosefoot |
|
Open
sites |
March-June |
|
|
|
|
|
| CISTACEAE |
Rock-rose
Family |
|
|
|
| Helianthemum
scoparium |
Peak
rush-rose |
|
Rocky
slopes and ridges |
March-June |
|
|
|
|
|
| CONVOLVULACEAE |
Morning-glory
Family |
|
|
|
| Calystegia
occidentalis |
|
|
Dry
slopes, chaparral |
May-June |
| Calystegia
purpurata ssp. purpurata |
Solano
morning-glory, bindweed |
|
Chaparral |
May-July |
|
|
|
|
|
| CORNACEAE |
Dogwood
Family |
|
|
|
| Cornus
glabrata |
Brown
dogwood |
|
Moist
areas |
May-July |
|
|
|
|
|
| CRASSULACEAE |
Stonecrop
Family |
|
|
|
| Crassula
connata |
Sand
pygmy |
|
Open
areas |
February-May |
| Crassula
tillaea (1) |
Mediterranean
sand pygmy |
Native
to Europe |
Open,
gravelly sites |
March-April |
| Dudleya
cymosa |
Canyon live-forever |
|
Rocky
outcrops |
April-June |
|
|
|
|
|
| CUCURBITACEAE |
Gourd
Family |
|
|
|
| Marah
fabaceus var. agrestis |
Common
manroot, wild cucumber |
|
Streamsides,
shrubby and open areas |
February-April |
| Marah
watsonii |
Watson's
manroot, bigroot |
|
Shrubby
sites |
|
|
|
|
|
|
| CUSCUTACEAE |
Dodder
Family |
|
|
March-April |
| Cuscuta
californica (2) |
California
dodder |
|
Chaparral,
grassland |
May-August |
|
|
|
|
|
| DATISCACEAE |
Datisca
Family |
|
|
|
| Datisca
glomerata |
Durango
root |
|
Dry
stream beds |
May-July |
|
|
|
|
|
| ERICACEAE |
Heath
Family |
|
|
|
| Arbutus
menziesii |
Pacific
madrone |
|
Oak,
pine woodlands |
March-May |
| Arctostaphylos
glandulosa ssp. glandulosa |
Eastwood
manzanita |
|
Slopes,
ridges, chaparral |
January-April |
| Arctostaphylos
manzanita |
Parry
manzanita |
|
Slopes,
chaparral, woodland |
February-April |
|
|
|
|
|
| EUPHORBIACEAE |
Spurge
Family |
|
|
|
| Eremocarpus
setigerus |
Doveweed,
turkey mullein |
|
Common
in dry, open areas |
May-October |
| Euphorbia
crenulata |
Chinese
caps, spurge |
|
Common
in dry areas |
March-August |
| Euphorbia
spathulata |
Spurge |
|
Occasional
in open and disturbed areas |
March-June |
|
|
|
|
|
| FABACEAE |
Pea
Family |
|
|
|
| Astragalus
gambelianus |
Gambel's
dwarf locoweed |
|
Open,
grassy sites, shrubland |
March-June |
| Cercis
occidentalis |
Western
redbud |
|
Dry
slopes, canyons, streamsides, chaparral |
February-April |
| Hoita
macrostachya |
Leather
root |
|
Streamsides,
spring-moist sites |
July-August |
| Lathyrus
vestitus var. vestitus |
Pacific
peavine |
|
Chaparral,
oak woodland |
April-June |
| Lotus
crassifolius |
Buck
lotus |
|
Chaparral,
pine woodland, disturbed sites |
May-August |
| Lotus
humistratus |
Hill
lotus |
|
Grassland,
oak, pine woodland |
March-June |
| Lotus
micranthus |
Pink-flowered
lotus |
|
Open
flats, fields and slopes |
March-May |
| Lotus
purshianus |
Spanish
lotus |
|
Chaparral,
disturbed sites |
June |
| Lotus
scoparius |
California
broom, deerweed |
|
Chaparral,
roadsides |
March-August |
| Lotus
wrangelianus |
Smooth
hill lotus |
|
Chaparral,
disturbed sites |
March-September |
| Lupinus
albifrons |
Bush
lupine |
|
Open
sand or rocks |
March-June |
| Lupinus
bicolor |
Miniature
lupine |
|
Open
or disturbed sites |
March-June |
| Lupinus
microcarpus var. densiflorus |
White-whorled
lupine |
|
Open,
or disturbed sites |
April-June |
| Lupinus
succulentus |
Fleshy
lupine |
|
Open
or disturbed sites |
February-May |
| Medicago
polymorpha |
Bur
clover |
Native
to Europe |
Disturbed
sites |
March-June |
| Melilotus
alba |
White
sweet clover |
Native
to Eurasia |
Open,
disturbed sites |
May-September |
| Melilotus
indica |
Yellow
sweet clover |
Native
to Eurasia |
Open,
disturbed sites |
April-October |
| Pickeringia
montana |
Chaparral
pea |
|
Chaparral,
open woodlands |
April-May |
| Rupertia
physodes |
California
tea |
|
Woodlands |
May-July |
| Trifolium
albopurpureum |
Rancheria
clover |
|
Grasslands,
chaparral, pine woodlands |
March-April |
| Trifolium
ciliolatum |
Tree
clover |
|
Grasslands,
chaparral, disturbed sites |
|
| Trifolium
gracilentum |
Slender
clover |
|
Open,
disturbed sites |
April |
| Trifolium
hirtum |
Rose
clover |
Native
to Eurasia |
Disturbed
sites |
March-May |
| Trifolium
microcephalum |
Small-headed
clover |
|
Streambanks,
moist, disturbed sites |
March |
| Trifolium
oliganthum |
Few-flowered
clover |
|
Woody
or shrubby slopes |
April |
| Trifolium
willdenovii |
Tomcat
clover |
|
Disturbed,
spring-moist soils |
March-May |
| Vicia
sativa |
Common
vetch |
Native
to Europe |
Disturbed
sites |
April-May |
|
|
|
|
|
| FAGACEAE |
Oak
Family |
|
|
|
| Quercus berberidifolia |
Scrub
oak |
|
Dry
slopes, chaparral |
April |
| Quercus douglasi |
Blue
oak |
|
Interior
foothills, woodland |
March-April |
| Quercus
lobata |
Valley oak |
|
|
|
| Quercus wislizeni |
Interior live oak |
|
Interior
canyons, chaparral, oak/pine woodland |
March-April |
|
|
|
|
|
| GARRYACEAE |
Silk
Tassel Family |
|
|
|
| Garrya
fremontii |
Silk
tassel |
|
Chaparral,
foothill woodland |
February-March |
|
|
|
|
|
| GERANIACEAE |
Geranium
Family |
|
|
|
| Erodium
botrys |
Long-beaked
filaree |
Native
to Europe |
Dry,
open or disturbed sites |
March-May |
| Erodium
brachycarpum |
|
Native
to southern Europe |
Dry,
open or disturbed sites |
February-May |
| Erodium
cicutarium (3) |
Red-stemmed
filaree |
Native
to southern Europe |
Open,
disturbed sites, grassland, shrubland |
February-May |
| Erodium
moschatum |
White-stemmed
filaree |
Native
to southern Europe |
Common
in disturbed sites |
February-May |
| Geranium
molle |
Annual
cranesbill |
Native
to Europe |
Open
to shaded disturbed sites |
May-July |
|
|
|
|
|
| GROSSULARIACEAE |
Gooseberry
Family |
|
|
|
| Ribes
malvaceum |
Chaparral
currant |
|
Chaparral,
oak woodland |
October-March |
| Ribes
victoris |
Victor's
gooseberry |
|
Chaparral |
|
|
|
|
|
|
| HIPPOCASTANACEAE |
Buckeye
Family |
|
|
|
| Aesculus
californica |
California
buckeye |
|
Along
drainages, sides of streams |
May-June |
|
|
|
|
|
| HYDROPHYLLACEAE |
Waterleaf
Family |
|
|
|
| Emmenanthe
penduliflora |
Whispering
bells |
|
Dry,
open slopes, often after burns |
May-June |
| Eriodictyon
californicum |
Yerba
santa |
|
Fields,
woodland, chaparral |
May-July |
| Eucrypta
chrysanthemifolia |
Common
eucrypta |
|
Chaparral,
disturbed sites |
March-June |
| Nemophila
heterophylla |
Vari-leaf
nemophila |
|
Partly
shaded slopes, chaparral, streambanks |
March-July |
| Nemophila
pedunculata |
Meadow
nemophila |
|
Grasslands,
woodlands, streambanks |
April-August |
| Phacelia
cicutaria |
Caterpillar
phacelia |
|
Slopes,
grassland, chaparral, oak/pine woodland |
March-May |
| Phacelia
imbricata |
Imbricate
phacelia |
|
Slopes,
chaparral, woodland |
March-June |
| Phacelia
tanacetifolia (1) |
Tansy
phacelia |
|
Slopes,
open areas |
March-May |
|
|
|
|
|
| HYPERICACEAE |
St.
John's Wort Family |
|
|
|
| Hypericum
perforatum |
Klamathweed |
Native
to Europe |
Pastures,
disturbed sites |
June-July |
| Hypericum
concinnum |
Gold-wire |
|
dry, shrubby
slopes |
May-July |
|
|
|
|
|
| JUGLANDACEAE |
Walnut
Family |
|
|
|
| Juglans
californica var. hindsii |
Black
walnut |
|
Shaded
slopes, drainages |
April-May |
|
|
|
|
|
| LAMIACEAE |
Mint
Family |
|
|
|
| Lamium
amplexicaule |
Henbit |
Native
to Europe |
Disturbed
sites, former fields or homesteads |
March-August |
| Lepechinia
calycina |
Pitcher
sage |
|
Open
slopes, chaparral, woodland |
April-June |
| Marrubium
vulgare |
Horehound |
Native
to Europe |
Disturbed
sites |
March-August |
| Mentha
spicata |
Spearmint |
Native
to Europe |
Moist
sites |
July-October |
| Monardella
villosa |
Coyote
mint |
|
Rocky
slopes, chaparral, oak woodland |
June-August |
| Salvia
columbariae |
Chia |
|
Dry,
disturbed sites, chaparral |
March-June |
| Scutellaria
tuberosa |
Tuberous
skullcap |
|
Chaparral,
oak woodland, common after fires |
March-July |
| Stachys
ajugoides var. rigida |
Hedge
nettle |
|
Generally
moist sites, sometimes dry hillsides |
July-August |
|
|
|
|
|
| LAURACEAE |
Laurel
Family |
|
|
|
| Umbellularia
californica |
California
bay or laurel |
|
Shaded
slopes, drainages, chaparral |
December-May |
|
|
|
|
|
| MALVACEAE |
Mallow
Family |
|
|
|
| Malva
nicaeensis |
Bull
mallow |
Native
to Eurasia |
Disturbed
sites |
March-September |
| Malva
parviflora |
Cheeseweed |
Native
to Eurasia |
Disturbed
sites |
Flowers
most of the year |
| Sidalcea
diploscypha |
Fringed
sidalcea |
|
Grassland,
open woodland |
April-June |
|
|
|
|
|
| OLEACEAE |
Olive
Family |
|
|
|
| Fraxinus
dipetala |
Flowering
ash |
|
Slopes,
chaparral, oak/pine woodland |
April-May |
|
|
|
|
|
| ONAGRACEAE |
Evening
Primrose Family |
|
|
|
| Clarkia
affinis |
|
|
Openings
in chaparral |
April-May |
| Clarkia
concinna |
Red
ribbons |
|
Woodland |
May-July |
| Clarkia
purpurea ssp. quadrivulnera |
Four-spot |
|
Open,
grassy or shrubby sites |
April-July |
| Clarkia
unguiculata |
Elegant
clarkia |
|
Dry,
often shaded slopes |
May-June |
| Epilobium
brachycarpum |
Annual
willow-herb |
|
Open,
dry grassland, woodland, disturbed sites |
June-September |
| Epilobium
canum ssp. canum |
California
fuchsia, hummingbird trumpet |
|
Dry,
rocky sites |
August-November |
| Epilobium
minutum |
Chaparral
willow-herb |
|
Open,
dry disturbed sites |
April-August |
|
|
|
|
|
| OROBANCHACEAE |
Broomrape
Family |
|
|
|
| Orobanche
bulbosa (4) |
Chaparral
broomrape |
|
Openings
in chaparral |
April-July |
| Orobanche
californica |
California
broomrape |
|
Generally
dry, rocky areas |
May-June |
| Orobanche
fasciculata (5) |
Clustered
broomrape |
|
Dry,
generally bare sites |
April-July |
| Orobanche
uniflora (6) |
Naked
broomrape |
|
Generally
moist sites |
March-May |
|
|
|
|
|
| PAPAVERACEAE |
Poppy
Family |
|
|
|
| Eschscholzia caespitosa |
Annual
California poppy |
|
Open
chaparral |
March-June |
| Eschscholzia californica |
California
golden poppy |
|
Grassy,
open areas |
February-September |
|
|
|
|
|
| PHILADELPHACEAE |
Mock
Orange Family |
|
|
|
| Whipplea
modesta |
Yerba
de selva |
|
Shaded
slopes |
April-June |
|
|
|
|
|
| PLANTAGINACEAE |
Plantain
Family |
|
|
|
| Plantago
erecta |
Annual
plantain |
|
Grassy
slopes and flats, open woodland |
April |
|
|
|
|
|
| POLEMONIACEAE |
Phlox
Family |
|
|
|
| Allophyllum
divaricatum |
Pink
false gilia |
|
Chaparral,
woodland, particularly following a fire |
April-June |
| Allophyllum
gilioides |
Blue
false gilia |
|
Open,
damp or grassy sites |
April-June |
| Collomia
heterophylla |
Vari-leaf
collomia |
|
Open
sites |
April-June |
| Gilia
capitata |
Blue-headed
gilia |
|
Open,
dry slopes |
May-July |
| Gilia
clivorum |
Many-stemmed
gilia |
|
Open,
grassy sites |
March-April |
| Gilia
tricolor |
Bird's
eyes |
|
Open
grasslands, slopes |
March-April |
| Linanthus
androsaceus |
False
baby stars |
|
Open
or shaded areas, chaparral, woodland |
April-June |
| Linanthus
bicolor |
True
baby stars |
|
Open
grassland and woodland |
March-June |
| Linanthus
ciliatus |
Whisker
brush |
|
Dry
open or wooded sites |
March-July |
| Navarretia
mellita |
Honey-scented
navarretia |
|
Open
sandy or gravelly sites, chaparral |
July |
| Navarretia
pubescens |
Downy
navarretia |
|
Open
slopes |
May-July |
| Navarretia
viscidula |
Sticky
navarretia |
|
Open
flats near water |
May-July |
| Phlox
gracilis |
Slender
phlox |
|
Dry
to moist sites |
March-August |
|
|
|
|
|
| POLYGONACEAE |
Buckwheat
Family |
|
|
|
| Chorizanthe
membranacea |
Pink
spineflower |
|
Grassland,
chaparral, foothill woodland |
April-July |
| Eriogonum
dasyanthemum |
Many-flowered
buckwheat |
|
Sand |
June-October |
| Eriogonum
nudum |
Naked
buckwheat |
|
Dry
rocky areas |
June-November |
| Pterostegia
drymarioides |
|
|
Shady,
moist sites |
March-July |
| Rumex
acetosella |
Sheep
sorrel |
Native
to Eurasia |
Moist,
disturbed sites |
March-August |
| Rumex
crispus |
Curly
dock |
Native
to Eurasia |
Disturbed
sites |
Flowers
most of the year |
|
|
|
|
|
| PORTULACACEAE |
Purslane
Family |
|
|
|
| Calandrinia
breweri |
Brewer's
calandrinia |
|
Disturbed
sites, burns |
March-June |
| Calandrinia
ciliata |
Red
maids |
|
Open,
grassy sites |
February-May |
| Claytonia parviflora ssp. parviflora |
|
|
Moist,
often disturbed sites |
March |
| Claytonia perfoliata |
Miner's
lettuce |
|
Common
in grassy or disturbed sites |
February-May |
|
|
|
|
|
| PRIMULACEAE |
Primrose
Family |
|
|
|
| Anagallis
arvensis |
Scarlet
pimpernel |
Native
to Europe |
Common
in disturbed areas |
March-July |
| Dodecatheon hendersonii |
Henderson's shooting star, sailor caps |
|
Shady
sites |
February-May |
|
|
|
|
|
| RANUNCULACEAE |
Buttercup
Family |
|
|
|
| Clematis
lasiantha |
Virgin's
bower |
|
Hillsides,
chaparral, open woodland |
March-May |
| Delphinium hesperium ssp. pallescens |
Foothill
delphinium |
|
Oak
woodland |
April-June |
| Delphinium nudicaule |
Canyon
delphinium |
|
Moist
wooded, rocky slopes |
March-June |
| Delphinium patens |
Zigzag
delphinium |
|
Grassland,
woodland |
March-May |
| Ranunculus
hebecarpus |
Pubescent-fruited
buttercup |
|
Shaded
sites, chaparral, oak/pine woodland |
March-May |
| Ranunculus
occidentalis |
Western
buttercup |
|
Flats,
open woodland |
March-May |
|
|
|
|
|
| RHAMNACEAE |
Buckthorn
Family |
|
|
|
| Ceanothus
cuneatus |
Buck
brush |
|
Dry
slopes and fans |
March-May |
| Ceanothus
oliganthus var. sorediatus |
Jim
brush |
|
Dry,
shrubby slopes |
February-May |
| Rhamnus californica |
Coffeeberry |
|
Chaparral,
woodlands |
May-July |
| Rhamnus
crocea |
Redberry |
|
Chaparral,
woodlands |
March-April |
|
|
|
|
|
| ROSACEAE |
Rose
Family |
|
|
|
| Adenostoma
fasciculatum |
Chamise |
|
Common
on dry slopes and ridges, chaparral |
May-June |
| Aphanes
occidentalis |
Western
lady's mantle |
|
Seasonally
moist grassland, chaparral |
March-June |
| Cercocarpus
betuloides |
Mountain
mahogany |
|
Chaparral,
oak/pine woodland |
March-May |
| Heteromeles arbutifolia |
Toyon |
|
Chaparral,
oak woodland |
April-July |
| Holodiscus
discolor |
Ocean
spray, cream bush |
|
Woodland,
rocky slopes |
May-August |
| Potentilla
glandulosa |
Sticky
cinquefoil |
|
Dry
to moist sites, many habitats |
May-July |
| Rosa
californica |
California
wild rose |
|
Moist
sites, especially streambanks |
May-August |
| Rosa
gymnocarpa |
Wood
rose |
|
Shaded
woods, shrublands |
March-July |
| Rubus
ursinus |
California
blackberry |
|
Moist
shrublands, streamside |
May |
|
|
|
|
|
| RUBIACEAE |
Madder
Family |
|
|
|
| Galium
aparine |
Cleavers |
Native
to Europe |
Grassy,
partly shaded places |
March-July |
| Galium
bolanderi |
Bolander's
bedstraw |
|
Chaparral |
May-August |
| Galium
murale |
Tiny
bedstraw |
Native
to Europe |
Damp
places, grassy hillsides |
April-May |
| Galium
parisiense |
Wall
bedstraw |
Native
to Europe |
Warm,
dry, generally rocky soil |
April-August |
| Galium
porrigens |
Climbing
bedstraw |
|
Among
shrubs in chaparral |
June |
|
|
|
|
|
| SALICACEAE |
Willow
Family |
|
|
|
| Populus fremontii ssp. fremontii |
Fremont
cottonwood |
|
Moist
sites and streamside |
March-April |
| Salix
exigua |
Sandbar
willow |
|
Common
along streams and arroyos |
March-May |
| Salix
laevigata |
Red
willow |
|
Streambanks |
|
| Salix
lasiolepis |
Arroyo
willow |
|
Common
along stream banks and beds |
February-April |
| Salix
melanopsis |
Dusky
willow |
|
Stream
banks |
March-May |
|
|
|
|
|
| SAXIFRAGACEAE |
Saxifrage
Family |
|
|
|
| Lithophragma
campanulatum |
|
|
Shady,
well drained slopes |
April |
| Lithophragma
heterophyllum |
Hill star |
|
Shaded
slopes |
March-June |
| Saxifraga
californica |
California
saxifrage |
|
Moist,
shady sites |
February-June |
|
|
|
|
|
| SCROPHULARIACEAE |
Figwort
Family |
|
|
|
| Antirrhinum
vexillo-calyculatum (7) |
Wiry
snapdragon |
|
Lower
slopes of rockslides, disturbed sites |
May-November |
| Castilleja
affinis |
Coast
paintbrush |
|
Dry
places in chaparral |
April-May |
| Castilleja
applegatei ssp. martinii |
Martin's
Indian paintbrush |
|
Dry,
open scrub slopes |
May-September |
| Castilleja
attenuata |
Valley
tassels |
|
Grassland |
March-May |
| Castilleja
exserta |
Purple
owl's-clover |
|
Open
fields, grassland |
March-May |
| Castilleja
foliolosa |
Woolly
paintbrush |
|
Dry
open, rocky areas, chaparral |
March-June |
| Collinsia
heterophylla |
Chinese
houses |
|
Common
in shaded sites |
March-June |
| Collinsia
sparsiflora |
Spinster's
blue-eyed Mary |
|
Grassy,
disturbed sites, chaparral |
March-May |
| Keckiella
lemmonii |
Lemmon's
penstemon |
|
Chaparral,
wooded slopes |
June-August |
| Mimulus
aurantiacus |
Bush
monkey flower |
|
Rocky
slopes, disturbed sites, borders of chaparral |
March-August |
| Mimulus
cardinalis |
Scarlet
monkey flower |
|
Moist
to wet sites along streams |
April-October |
| Mimulus
guttatus |
Seepspring
monkey flower |
|
Wet
places |
March-August |
| Pedicularis densiflora |
Indian warrior |
|
Dry
chaparral, oak/pine woodland |
January-June |
| Penstemon
heterophyllus |
Foothill
penstemon |
|
Grassland,
chaparral |
April-July |
| Scrophularia
californica |
California
figwort |
|
Common
in + damp areas, chaparral |
February-July |
| Tonella
tenella |
Small-flowered
tonella |
|
Moist
shaded sites |
March-May |
| Triphysaria
pusilla |
Dwarf
orthocarpus |
|
Grassland |
April-May |
| Veronica
persica |
Persian
speedwell |
Native
to Europe |
Fields,
disturbed sites |
February-May |
|
|
|
|
|
| SOLANACEAE |
Nightshade
Family |
|
|
|
| Solanum
xanti |
Purple
nightshade |
|
Shrubland,
oak/pine woodland |
February-July |
|
|
|
|
|
| VALERIANACEAE |
Valerian
Family |
|
|
|
| Plectritis
ciliosa |
Long-spurred
plectritis |
|
Open,
partly shaded slopes |
March-May |
| Plectritis
congesta |
Short-spurred
plectritis |
|
Open,
partly shaded slopes |
April-June |
| Plectritis
macrocera |
White
plectritis |
|
Open,
partly shaded slopes |
April-May |
|
|
|
|
|
| VITACEAE |
Grape
Family |
|
|
|
| Vitis
californica |
California
wild grape |
|
Stream
banks, often climbing on shrubs and trees |
May-June |
|
|
|
|
|
| MONOCOTYLEDONS |
|
|
|
|
|
|
|
|
|
| CYPERACEAE |
Sedge
Family |
|
|
|
| Carex
nudata |
Torrent
sedge |
|
Common,
streambanks |
|
| Cyperus
eragrostis |
Umbrella
sedge |
|
Streambanks |
May-November |
|
|
|
|
|
| IRIDACEAE |
Iris
Family |
|
|
|
| Iris
fernaldii (8) |
Fernald's
iris |
|
Shaded
sites |
April-May |
| Iris
macrosiphon |
Long-tubed
iris |
|
Open
to partly shaded slopes |
April-May |
| Sisyrinchium
bellum |
Blue-eyed
grass |
|
Open
grassland, woodland |
March-May |
|
|
|
|
|
| JUNCACEAE |
Rush
Family |
|
|
|
| Juncus
balticus |
Baltic
rush |
|
Moist
to dry sites sites |
May-August |
| Juncus
bufonius |
Toad
rush |
|
Moist,
open, often disturbed sites |
April-September |
| Juncus
mexicanus |
Mexican
rush |
|
Moist
areas |
May-August |
| Juncus
patens |
Spreading
rush |
|
Moist
meadows and stream banks |
June-July |
| Juncus
xiphioides |
Sword-leaved
rush |
|
Common
in moist areas |
May-October |
|
|
|
|
|
| LILIACEAE |
Lily
Family |
|
|
|
| Allium
serra |
Wild
onion |
|
Grassy
slopes |
March-May |
| Brodiaea elegans ssp. elegans |
Elegant
brodiaea |
|
Grassland,
open woodland |
May-June |
| Calochortus amabilis |
Golden
fairy lantern |
|
Shady
or open woodland, shrubland |
April-June |
| Calochortus luteus |
Gold
nuggets |
|
Grassland,
woodland |
May-June |
| Calochortus
splendens |
Splendid
mariposa |
|
Grassland,
chaparral |
May-June |
| Chlorogalum
pomeridianum |
Soap
plant |
|
Grassland,
chaparral |
May-August |
| Dichelostemma
capitatum |
Blue
dicks |
|
Open
woodland, scrub, grassland |
March-May |
| Dichelostemma
volubile |
Twining
lily |
|
Foothill
woodland, scrub |
Common |
| Fritillaria
affinis |
Checker-lily |
|
Grassland,
oak scrub |
February-May |
| Triteleia laxa |
Ithuriel's
spear |
|
Grassland,
woodland |
March-June |
| Triteleia
lugens (7) |
|
|
Edges
of chaparral |
April-May |
| Zigadenus
fremontii |
Fremont's star-lily |
|
Grassy
or wooded slopes |
March-May |
|
|
|
|
|
| ORCHIDACEAE |
Orchid
Family |
|
|
|
| Piperia
elegans |
Rein-orchid |
|
Dry,
open sites, scrubland |
May-September |
|
|
|
|
|
| POACEAE |
Grass
Family |
|
|
|
| Agrostis
exarata |
Pacific
bent grass |
|
Moist
open or disturbed sites |
June-August |
| Aira
caryophyllea |
Hairgrass |
Native
to Europe |
Open
or disturbed sites |
April-June |
| Avena barbata |
Slender
wild oat |
Native
to Europe |
Disturbed
sites |
March-June |
| Avena fatua |
Broad-leaved
wild oat |
Native
to Europe |
Disturbed
sites |
April-June |
| Brachypodium
distachyon |
Purple
falsebrome |
Native
to Eurasia |
Disturbed
sites |
April-May |
| Briza
minor |
Little
quaking grass |
Native
to Europe |
Shaded
or moist, open sites |
April-June |
| Bromus
carinatus |
California
brome |
|
Open
shrubland, woodland |
April-August |
| Bromus
diandrus |
Ripgut
grass |
|
Open,
disturbed sites |
April-June |
| Bromus
hordeaceus |
Soft
chess |
Native
to Europe |
Open,
often disturbed sites |
April-July |
| Bromus
laevipes |
Perennial
smooth-stemmed brome |
|
Shrubland,
pine woodland |
May-August |
| Bromus
madritensis |
Foxtail chess |
Native
to Europe |
Open,
often disturbed sites |
April-June |
| Bromus
madritensis ssp. rubens |
Red
brome |
Native
to southern Europe |
Open,
often disturbed sites |
March-June |
| Bromus
sterilis |
Poverty
brome |
Native
to Europe |
Open,
often disturbed sites |
April-June |
| Cynodon
dactylon |
Bermuda
grass |
Native
to Africa |
Disturbed
sites |
March-May |
| Cynosurus
echinatus |
Hedgehog
dogtail |
From
Europe |
Open,
often disturbed sites |
April-June |
| Elymus
glaucus |
Woodland
wild rye |
|
Grassland,
chaparral, woodland |
June-August |
| Elymus
trachycaulis |
Slender wheat
grass |
|
Dry to moist
open areas, woodland. |
|
| Gastridium
ventricosum |
Nit
grass |
Native
to Europe |
Open,
often disturbed sites |
May-September |
| Hordeum
marinum ssp. gussoneanum |
Mediterranian
barley |
Native
to Europe |
Dry
to moist disturbed sites |
April-June |
| Hordeum murinumssp. leporinum |
Farmer's foxtail |
Native
to Europe |
Moist,
generally disturbed sites |
April-June |
| Lolium
multiflorum |
Italian
ryegrass |
|
Disturbed
sites, abandoned fields |
March-May |
| Lolium
temulentum |
Darnel |
|
Open,
often disturbed sites |
April-June |
| Melica
californica |
California
melic grass |
|
Open
hillsides, oak woodland |
April-May |
| Melica
torreyana |
Small-flowered
melic grass |
|
Shady
oak woodland and chaparral |
March-June |
| Nassella
lepida |
Foothill
needlegrass |
|
Dry
slopes, chaparral, oak grassland |
March-May |
| Nassella
pulchra |
Purple
needlegrass |
|
Grassland,
chaparral, oak woodland |
March-May |
| Poa
annua |
Annual
bluegrass |
Native
to Europe |
Disturbed,
moist ground |
January-July |
| Poa
bulbosa |
Bulbous
bluegrass |
Native
to Europe |
Disturbed
sites |
April-July |
| Poa
secunda ssp. secunda |
One-sided
bluegrass |
|
Many
habitats |
February-June |
| Polypogon
maritimus |
Mediterranean
beard grass |
Native
to Europe |
Moist
places |
June |
| Polypogon
monspeliensis |
Beard
grass |
Native
to Europe |
Moist
places |
April-August |
| Vulpia
bromoides |
Brome
fescue |
Native
to Europe |
Disturbed
sites, chaparral |
April-June |
| Vulpia
microstachys var. ciliata |
Gray fescue |
|
Open,
disturbed sites |
March-June |
| Vulpia
microstachys var. confusa |
Small
fescue |
|
Occasional
on dry slopes |
March-June |
| Vulpia
microstachys var. microstachys |
Stiff
annual fescue |
|
Dry
hillsides, open woodlands |
April-June |
| Vulpia
microstachys var. pauciflora |
|
|
Dry
hillsides, open woodlands |
April-June |
| Vulpia
myuros var. hirsuta |
Foxtail fescue |
Native
to Europe |
Common
in dry, open areas |
March-June |
| Vulpia
myuros var. myuros |
Rattail
fescue |
Native
to Europe |
Dry
hillsides, open woodlands |
March-May |
|
|
|
|
|
| TYPHACEAE |
Cattail
Family |
|
|
|
| Typha
angustifolia |
Narrow-leaved
cattail |
|
Marsh
and moist areas |
June |