05 May

Flowers observed blooming in May

◁ April | June ▷

Blooming data are based on my personal observations between 2010 and 2015. They are not perfect.

The red bits of the little tables under the flowers indicate when I observed those flowers blooming. The fainter red bits indicate months in which the flower bloomed but for which I neglected to record an exact start (or stop) date. Since these are the observations of one man randomly walking the local trails I may have missed the true start/stop by several weeks.


Asparagaceae
Chlorogalum pomeridianum
Waxy leaved soap lily

AprJuly

2015
2014
2013
2012
2011
2010
Hesperoyucca whipplei
Chaparral yucca

AprAug

2015
2014
2013
2012
2011
2010
2009
Bloomeria crocea
Common goldenstar

AprJuly

2015
2014
2013
2012
2011
2010
Brodiaea jolonensis
Dwarf Brodiaea

MayJune

2015
2014
2013
Dichelostemma capitatum
blue dicks

JanJuly

2015
2014
2013
2012
2011
2010
2009

Liliaceae
Calochortus albus
White fairy lantern

MarJuly

2015
2014
2013
2012
2011
2010
Calochortus catalinae
Catalina Mariposa Lily

FebJune

2015
2014
Calochortus clavatus
Pale Yellow Mariposa Lily

AprJune

2015
2014
2010
Calochortus splendens
Splendid Mariposa Lily

AprJune

2015
2014
Calochortus venustus
Butterfly Mariposa lily

AprJune

2015
2014
2013
2012
2011
2010
Fritillaria ojaiensis
Ojai fritillary

MarMay

2015
2014
2013
2012
2011
Lilium humboldtii
humboldt’s lily

MayJuly

2015
2014
2013
2012
2011
2010

Melanthiaceae
Toxicoscordion fremontii
Star Lily

FebJuly

2015
2014
2013
2012
2011
2010

Iridaceae
Sisyrinchium bellum
blue eyed grass

FebJune

2015
2014
2013
2012
2011
2010

Orchidaceae
Epipactis gigantea
Stream Orchid

AprJune

2015
2014
2013
2012
Piperia michaelii
Michael’s Rein Orchid

MayJune

2015
2013
2012
2011

Xanthorrhoeaceae
Asphodelus fistulosus
Asphodel

All year

2015
2014
2013
2012
2011
2010
2009
2008

Cyperaceae
Schoenoplectus pungens
Common Three-Square Bulrush

AprMay

2013

Juncaceae
Juncus effusus
Bog Rush

May

2013
Juncus xiphioides
Iris-leaved Rush

MayJune

2015
2014

Poaceae
Avena barbata
Slender Wild Oat

MarMay

2015
2014
Elymus condensatus
Giant Wildrye

February

2015
2014
Elymus glaucus
Western Rye

MarJune

2015
2014
Lamarckia aurea
Goldentop

FebMar

2015
2014
Melica imperfecta
California Melic

FebMay

2015
2014
Phalaris aquatica
Harding Grass

MayJuly

2014
Phalaris lemmonii
Lemmon’s Canary Grass

AprMay

2015
2014

Apiaceae
Osmorhiza brachypoda
California Sweet Cicely

FebMay

2015
2014
2013
2012
2011
Conium maculatum
poison hemlock

DecSep

2015
2014
2013
2012
2011
2010
Torilis arvensis
Field Hedge Parsley

MayJune

2015
2010
Torilis sp.
Hedge parsley

MarJuly

2015
2014
2013
2012
2011
2010
Sanicula arguta
Sharp-Toothed Sanicle

FebMay

2015
2014
2013
2011
Sanicula crassicaulis
Pacific Sanicle

FebMay

2015
2014
2013
2012
Apiastrum angustifolium
Wild Celery

MarMay

2015
Apium graveolens
celery

AprDec

2015
2014
2013
2012
2011
Daucus pusillus
wild carrot

AprJune

2015
2014
2013
2012
2011
2010
Lomatium dasycarpum
Woolly-fruited Lomatium

FebJune

2015
2014
2013
2012
2011
Lomatium utriculatum
Hog Fennel

FebMay

2015
2014
2013
2012
2011
Tauschia arguta
southern tauscia

JanJune

2015
2014
2013
2012
2011
2010

Asteraceae
Achillea millefolium
Common yarrow

FebOct

2015
2014
2013
2012
2011
2010
Artemisia californica
Old man’s beard

AprNov

2014
2013
2012
2011
2010
Cotula australis
Southern Brass Buttons

JanJune

2015
2014
2013
2012
Cotula coronopifolia
Brass Buttons

All year

2015
2014
2013
2012
Matricaria discoidea
pineapple weed

FebJune

2015
2014
2013
2012
2011
2010
Baccharis plummerae
Plummer’s Baccharis

AprDec

2015
2014
2013
2012
2011
2009
Baccharis salicifolia
Mulefat

JulyMay

2015
2014
2013
2012
2011
Erigeron bonariensis
Flax-leaved Horseweed

FebMar

2012
Erigeron canadensis
Horseweed

AprFeb

2015
2014
2013
2012
2011
2010
Erigeron foliosus
leafy fleabane

AprJan

2015
2014
2013
2012
2011
2010
Hazardia squarrosa
sawtooth goldenbush

JulyJan

2014
2013
2012
2011
2010
Heterotheca grandiflora
telegraph weed

All year

2015
2014
2013
2012
2011
2010
Isocoma menziesii
Menzies’ goldenbush

All year

2015
2014
2013
2012
2011
2010
Solidago velutina
California goldenrod

All year

2015
2014
2013
2012
2011
2010
2009
Pseudognaphalium beneolens
fragrant everlasting

DecMay

2015
2013
2012
2011
Pseudognaphalium biolettii
twocolor cudweed

AugMay

2015
2014
2013
2012
2011
2010
Pseudognaphalium californicum
California pearly everlasting

JanNov

2015
2014
2013
2012
2011
2010
Pseudognaphalium canescens
white everlasting

All year

2015
2014
2013
2012
2011
2010
Chaenactis glabriuscula
Yellow Pincushion

MarJuly

2015
2014
2013
2012
2011
Bidens pilosa
Beggar’s ticks

All year

2015
2014
2013
2012
2011
2010
Ageratina adenophora
sticky snakeroot

FebOct

2015
2014
2013
2012
2011
2010
Brickellia californica
California Brickellbush

MayDec

2015
2014
2013
2012
2011
Ambrosia chamissonis
beach-bur

JanNov

2015
2014
2013
2012
2010
Ambrosia psilostachya
Western ragweed

MayJan

2015
2014
2013
2012
2011
Encelia californica
Bush sunflower

All year

2015
2014
2013
2012
2011
2010
Eriophyllum confertiflorum
golden yarrow

All year

2015
2014
2013
2012
2011
2010
Madia gracilis
slender tarweed

AprJuly

2015
2014
2013
2012
2011
2010
Madia sativa
Coast tarweed

AprOct

2015
2014
2013
2012
2011
2010
Lagophylla ramosissima
Branching Hareleaf

MayJune

2015
Hemizonia congesta-luzulifolia
Silky Tarweed

AprDec

2015
2014
Centromadia parryi
Southern tarplant

MayFeb

2015
2014
2013
2012
2011
Deinandra fasciculata
clustered tarweed

AprDec

2015
2014
2013
2012
2011
2010
Deinandra increscens
Grassland tarweed

MayJan

2015
2014
2013
2012
2011
Venegasia carpesioides
canyon sunflower

All year

2015
2014
2013
2012
2011
2010
2009
Delairea odorata
Cape Ivy

NovJune

2015
2014
2013
2012
2011
2010
Senecio flaccidus
threadleaf ragwort

March

2015
2014
2013
2012
2011
2010
Senecio vulgaris
Old man of Spring

DecMay

2015
2014
2013
2012
Carduus tenuiflorus
Slender Thistle

NovJune

2015
2014
2013
2012
2011
2010
Cirsium occidentale-californicum
California thistle

MarAug

2015
2014
2013
2012
2011
2010
Cirsium occidentale-venustum
Venus thistle

FebAug

2015
2014
2013
2012
2011
2010
Cirsium vulgare
Bull thistle

JanNov

2015
2014
2013
2012
2011
2010
Silybum marianum
milk thistle

All year

2015
2014
2013
2012
2011
2010
Centaurea melitensis
Maltese star thistle

JanOct

2015
2014
2013
2012
2011
2010
Centaurea solstitialis
Yellow star thistle

MarDec

2015
2014
2013
2012
2011
2010
Agoseris grandiflora
California Dandelion

MarJuly

2015
2014
2013
2012
2011
2010
Agoseris heterophylla
Mountain Dandelion

AprJune

2015
2014
2012
2011
Hieracium argutum
Southern Hawkweed

MayOct

2015
2014
2013
2012
2011
2010
Hypochaeris glabra
Smooth Cat’s ear

JanJune

2015
2014
2013
2012
2011
Hypochaeris radicata
Hairy Cat’s ear

All year

2014
2013
2012
2011
Lactuca serriola
Prickly Lettuce

MayJan

2015
2014
2013
2012
2011
Malacothrix saxatilis
Cliff-aster

All year

2015
2014
2013
2012
2011
2010
Malacothrix saxatilis-saxatilis
Seaside daisy

All year

2015
2014
2013
2012
2011
Microseris douglassii
Douglas’ silverpuffs

AprJune

2015
Picris echioides
Prickly ox-tongue

All year

2015
2014
2013
2012
2011
2010
Rafinesquia californica
California Chickory

FebJuly

2015
2014
2013
2012
2011
2010
Sonchus sp.
Sow-Thistle

All year

2015
2014
2013
2012
2011
2010
Stephanomeria virgata
Tall Stephanomeria

MayFeb

2015
2014
2013
2012
2011
2010
Taraxacum officionale
Dandelion

FebAug

2012
2011
Tragopogon dubius
Yellow Salsify

MayJuly

2015
2014
Tragopogon porrifolius
Purple Salsify

AprSep

2015
2013
2012
Uropappus lindleyi
Silver Puffs

MarJune

2015
2014
2013
2012
2011
2010
Acourtia microcephala
Sacapelote

MayAug

2015
2014
2013
2012
2011
2010
Jaumea carnosa
Fleshy Jaumea

MayNov

2015
2014
2013
Leptosyne bigelovii
Bigelow’s coreopsis

FebJuly

2015
2014
Micropus californicus
Slender cottonweed

MarMay

2015
2014

Adoxaceae
Sambucus nigra-caerulea
Blue Elderberry

All year

2015
2014
2013
2012
2011
2010

Caprifoliaceae
Lonicera hispidula
Pink honeysuckle

AprJuly

2015
2014
2013
2012
2011
2010
Lonicera subspicata
Chaparral honeysuckle

All year

2015
2014
2013
2012
2011
2010
Symphoricarpos mollis
Trailing Snowberry

AprJuly

2014
2012

Apocynaceae
Asclepias eriocarpa
Broad-leaved Milkweed

MayAug

2015
2014
2013
2012
2011
2010
Asclepias fascicularis
Narrow-leaved Milkweed

MayOct

2015
2014
2012
2011
Vinca major
periwinkle

All year

2015
2014
2013
2012
2011
2010

Rubiaceae
Galium andrewsii
phlox-leaved bedstraw

MarJuly

2015
2014
2013
2012
2011
Galium aparine
common bedstraw

FebMay

2015
2014
2013
2012
2011
2010
?Galium californicum
California bedstraw

FebJune

2015
2014
2013
2012
2011
Galium nuttallii
climbing bedstraw

FebJuly

2015
2013
2012
2011
2010
Galium porrigens
graceful bedstraw

FebAug

2015
2014
2013
2012
2011

Lamiaceae
Marrubium vulgare
Horehound

MarNov

2015
2014
2013
2012
2011
2010
Stachys rigida
woodmint

DecOct

2015
2014
2013
2012
2011
2010
Lepechinia calycina
Pitcher Sage

FebJuly

2015
2014
2013
2012
2011
2010
Monardella lanceolata
Mustang Mint

MayAug

2015
2014
2013
2012
2011
2010
Salvia apiana
white sage

AprSep

2015
2014
2013
2012
2011
2010
2009
Salvia columbariae
chia

FebJune

2015
2014
2013
2012
2011
2010
Salvia leucophylla
purple sage

FebJuly

2015
2014
2013
2012
2011
2010
2009
2008
Salvia mellifera
black sage

DecSep

2015
2014
2013
2012
2011
2010
2009
Salvia spathacea
hummingbirdsage

NovJuly

2015
2014
2013
2012
2011
2010
2009
Trichostema lanatum
Woolly bluecurls

FebAug

2015
2014
2013
2012
2011
2010
2009

Oleaceae
Olea europaea
European Olive

MarJune

2015
2014
2013
2012

Orobanchaceae
Castilleja affinis
Coast Indian Paintbrush

FebAug

2015
2014
2013
2012
2011
2010
Castilleja brevistyla
Shortstyle Indian paintbrush

AprMay

2013
2012
2011
2010
Castilleja exserta
Owl’s clover

MarJune

2015
2014
2013
2012
2011
2010
Castilleja foliolosa
Woolly Indian Paintbrush

JanJuly

2015
2014
2013
2012
2011
2010
Cordylanthus rigidus
Rigid Bird’s Beak

MayNov

2015
2014
2013
2012
2011
Orobanche fasciculata
Clustered Broomrape

MarMay

2015
2014

Phrymaceae
Mimulus aurantiacus
sticky monkeyflower

JanSep

2015
2014
2013
2012
2011
2010
Mimulus bigelovii
Bigelow’s Monkeyflower

MarAug

2015
2014
2010
Mimulus brevipes
yellow monkeyflower

FebJuly

2015
2014
2013
2012
2011
2010

Plantaginaceae
Antirrhinum kelloggii
climbing snapdragon

FebJune

2015
2014
2013
2012
2011
2010
Antirrhinum multiflorum
Sticky snapdragon

MarAug

2015
2014
2013
2012
2011
2010
2009
Collinsia bartsiifolia
white blue-eyed Mary

AprJune

2015
2013
2012
2011
2010
Collinsia heterophylla
Chinese Houses

FebJuly

2015
2014
2013
2012
2011
2010
Keckiella cordifolia
Climbing Penstemon

AprAug

2015
2014
2013
2012
2011
2010
Penstemon centranthifolius
Scarlet Bugler

MarJune

2015
2014
Penstemon grinnellii
Grinnelli’s Penstemon

AprJune

2014
2013
2012
2011
2010
Penstemon heterophyllus
Foothill Penstemon

AprAug

2015
2014
2013
2012
2011
2010
Plantago erecta
Foothill Plantain

FebJune

2015
2014
2013
Plantago lanceolata
English Plantain

All year

2015
2013
2012
2011
Veronica anagallis-aquatica
Water Speedwell

All year

2014
2013
2012
2011

Scrophulariaceae
Scrophularia californica
California Figwort

JanOct

2015
2014
2013
2012
2011
2010
Verbascum virgatum
Wand Mullein

All year

2014
2013
2012
2011
2010

Verbenaceae
Verbena lasiostachys
Western verbena

FebSep

2015
2014
2013
2012
2011
2010

Convolvulaceae
Calystegia macrostegia
Coastal Morning Glory

All year

2015
2014
2013
2012
2011
2010
Calystegia malacophylla
Woolly Morning Glory

MayAug

2014
2012
2011
Calystegia purpurata-purpurata
Pacific false bindweed

DecAug

2015
2014
2013
2012
2011
2010
Calystegia soldanella
Beach Morning Glory

MarJune

2014
2013
2012
Convolvulus arvensis
bindweed

AprNov

2015
2014
2013
2012
2011
Cuscuta californica
California Dodder

All year

2015
2014
2013
2012
2011
Cuscuta salina
saltmarsh Dodder

AprFeb

2015
2014
2013
2012

Solanaceae
Datura wrightii
Sacred Datura

All year

2015
2014
2013
2012
2011
2010
2009
Nicotiana glauca
tree tobacco

All year

2015
2014
2013
2012
2011
2010
2009
Solanum douglasii
white nightshade

All year

2015
2014
2013
2012
2011
2010
Solanum lanceolatum
Lance-Leaf Nightshade

All year

2014
2013
2012
2011
2010
Solanum xanti
purple nightshade

All year

2015
2014
2013
2012
2011
2010
2009

Boraginaceae
Amsinckia douglasiana
Douglas’ Fiddleneck

FebJune

2015
2014
Amsinckia menziesii
common Fiddleneck

FebJune

2015
2014
2013
2012
2011
2010
Amsinckia spectabilis
seaside Fiddleneck

FebJuly

2015
2014
Amsinckia tessellata
bristly fiddleneck

March

2013
2012
Cryptantha sp.
popcornflower

JanAug

2015
2014
2013
2012
2011
2010
Heliotropium curassavicum
Salt Heliotrope

MayNov

2015
2014
2013
2012
Emmenanthe penduliflora
Whispering Bells

FebJune

2015
2014
2013
2012
2011
2010
Eriodictyon tomentosum
Woolly yerba santa

MaySep

2015
2014
2013
2012
2011
2010
Eucrypta chrysanthemifolia
spotted hideseed

JanJuly

2015
2014
2013
2012
2011
2010
Nemophila menziesii
baby blue eyes

FebMay

2015
2014
2013
2012
2011
2010
Phacelia brachyloba
Short Lobed Phacelia

MarJune

2015
Phacelia campanularia
California bluebells

MarMay

2015
2014
2012
2011
2010
Phacelia cicutaria
Caterpillar phacelia

MarJune

2015
2014
2013
2012
2011
2010
Phacelia distans
common phacelia

FebOct

2015
2014
2013
2012
2011
2010
Phacelia grandiflora
large flowered phacelia

FebAug

2015
2014
2013
2012
2011
2010
Phacelia imbricata
Imbricate Phacelia

AprOct

2015
2014
2013
2012
2011
2010
Phacelia ramosissima
Rambling Phacelia

AprNov

2015
2014
2013
2012
Phacelia tanacetifolia
Tansy Phacelia

FebJune

2015
2014
Phacelia viscida-albiflora
white Sticky Phacelia

JanJuly

2015
2014
2013
2012
2011
2010
Pholistoma auritum
fiesta flower

JanJune

2015
2014
2013
2012
2011
2010

Cornaceae
Cornus sericea
Creek Dogwood

MarOct

2015
2014
2013
2012

Loasaceae
Mentzelia micrantha
Stick-Leaf

MarJuly

2015
2014
2013
2012
2011
2010

Ericaceae
Arbutus menziesii
Pacific Madrone

FebMay

2015
2014
2013
2012
2011
Arctostaphylos glandulosa
Eastwood manzanita

JanMay

2015
2014
2013
2012
2011
2010
Comarostaphylis diversifolia
Summer Holly

FebJuly

2015
2014
2013
2012
2011
2010

Polemoniaceae
Allophyllum gilioides
Dense false giliflower

MarOct

2015
2014
2013
2012
2011
2010
Eriastrum densifolium
Dense-flowered Eriastrum

MayJune

2015
2014
Gilia capitata
Globe gilia

FebJuly

2015
2014
2013
2012
2011
Leptodactylon californicum
Prickly-phlox

JanJuly

2015
2014
2013
2012
2011
2010
Leptosiphon bicolor
True Babystars

MayJune

2015
2014
2012
Leptosiphon parviflorus
Variable Linanthus

JanJune

2015
2014
2013
2012
2011
Navarretia hamata
Hooked Pincushionplant

MarJuly

2015
2014
2013
2011
Navarretia mitracarpa
Paso Robles Navarretia

May

2015

Primulaceae
Anagallis arvensis
Scarlet Pimpernel

MarOct

2015
2014
2013
2012
2011
Dodecatheon clevelandii
Shooting Star

JanMay

2015
2014
2013
2012
2011

Styracaceae
Styrax redivivus
Snowdrop bush

MarJune

2015
2014
2013
2012
2011

Crassulaceae
Dudleya cymosa
foothill dudleya

AprJuly

2015
2014
2013
2012
2011
2010
Dudleya lanceolata
Rock Lettuce

AprJuly

2015
2014
2012
2011
Dudleya pulverulenta
chalk dudleya

MayAug

2015
2014
2013
2012
2011

Grossulariaceae
Ribes malvaceum
Chaparral currant

SepMay

2015
2014
2013
2012
2011
2010

Saxifragaceae
Lithophragma affine
Woodland Star

MarMay

2015
2014
2013
2012
2011
Lithophragma cymbalaria
Mission Star

FebMay

2015
2014
2013
2012
2011
2010
Micranthes californica
California Saxifrage

FebMay

2015
2014
2013
2012

Aizoaceae
Carpobrotus chilensis
Sea Fig

All year

2014
2013
2012
2011
Carpobrotus edulis
Hottentot Fig

All year

2014
2013
2012
2011

Amaranthaceae
Atriplex lentiformis
Big Saltbush

MaySep

2015
2014
2013
2012
Atriplex leucophylla
Dune Saltbush

DecMay

2013
2012
2011
Chenopodium californicum
Soap Plant

FebMay

2015
2014
2013
2012
Chenopodium murale
Nettle-leaved goosefoot

DecJune

2015
2013
2012
2011
Salsola tragus
Tumbleweed

MarDec

2015
2014
2013
2012
2011

Caryophyllaceae
Silene gallica
Windmill Pink

JanJuly

2015
2014
2013
2012
2011
2010
Silene laciniata
Indian Pink

FebSep

2015
2014
2013
2012
2011
2010
Stellaria media
chickweed

DecJune

2015
2014
2013
2012
2011

Frankeniaceae
Frankenia salina
Alkali heath

AprFeb

2015
2014
2013
2012

Montiaceae
Calandrinia ciliata
Red-maids

JanMay

2015
2014
2013
2012
2011
2010
Claytonia perfoliata
miner’s lettuce

JanJune

2015
2014
2013
2012
2011
2010

Nyctaginaceae
Abronia maritima
Red sand verbena

All year

2015
2014
2013
2012
2011
2010
Abronia umbellata
Pink sand verbena

All year

2015
2014
2013
2012
2011
2010
Mirabilis laevis
Wishbone bush

DecJuly

2015
2014
2013
2012
2011
2010

Polygonaceae
Chorizanthe staticoides
Turkish Rugging

AprJuly

2015
2014
2013
2012
2011
2010
?Eriogonum baileyi
Bailey’s Buckwheat

MayDec

2015
2014
2013
Eriogonum fasciculatum
California Buckwheat

FebDec

2015
2014
2013
2012
2011
2010
2009
Eriogonum giganteum
St. Catherine’s lace

MayAug

2015
2014
2013
2012
2010
Eriogonum parvifolium
Seacliff Buckwheat

All year

2015
2014
2013
2012
2011
Pterostegia drymarioides
Fairy Mist

FebMay

2015
2014
2013
Rumex crispus
Curly dock

JanJuly

2012
2011
2010

Brassicaceae
Brassica nigra
black mustard

DecJuly

2015
2014
2013
2012
2011
2008
Brassica rapa
field mustard

All year

2015
2014
2013
2012
2011
2010
Cakile maritima
sea rocket

All year

2015
2014
2013
2012
2011
2010
Capsella bursa-pastoris
Shepherd’s purse

JanMay

2015
2014
2013
2012
2011
Cardamine californica
milk maids

DecMay

2015
2014
2013
2012
2011
2010
2009
Caulanthus lasiophyllus
California mustard

FebJune

2015
2014
2013
Descurainia pinnata
Western Tansy Mustard

FebMay

2015
2014
2013
Erysimum capitatum
Western Wallflower

AprJune

2015
Hirschfeldia incana
Summer Mustard

FebDec

2015
2014
2013
2012
2011
2010
Lobularia maritima
Sweet Alyssum

DecJune

2013
2012
2011
Nasturtium officinale
watercress

FebDec

2015
2014
2013
2012
2011
2010
Raphanus ssp
wild radish

All year

2015
2014
2013
2012
2011
2010
Sisymbrium irio
London Rocket

JanJune

2015
2014
2013
2012
Sisymbrium officinale
Hedge Mustard

FebJune

2015
2014
2013
2012
Thysanocarpus curvipes
Fringe Pod

FebMay

2015
2014
2013
2012

Cleomaceae
Cleome isomeris
Bladderpod

JanJune

2015
2014
2013
2012
2011
2010

Tropaeolaceae
Tropaeolum majus
Nasturtium

All year

2015
2014
2013
2012
2011
2010

Geraniaceae
Erodium botrys
long-beaked storksbill

JanSep

2015
2014
2013
2012
2011
2010
Erodium cicutarium
Red-stemmed storksbill

DecAug

2015
2014
2013
2012
2011
2010
Geranium dissectum
cut-leaved geranium

FebMay

2015
2014
2013
2012
2011
2010

Cistaceae
Cistus incanus-creticus
Pink rockrose

JanAug

2015
2014
2013
2012
2011
2010
Helianthemum scoparium
Common Rush-Rose

All year

2015
2014
2013
2012
2011
2010

Malvaceae
Fremontodendron californicum
Flannelbush

JanNov

2015
2014
2013
2012
Malacothamnus fasciculatus
Chaparral mallow

All year

2015
2014
2013
2012
2011
2010
Malva nicaeensis
bull mallow

All year

2015
2014
2013
2012
2011
2010
Malvella leprosa
Alkali mallow

MayNov

2015
2014
2013
2012
2011
Sidalcea malviflora
Checkerbloom

FebJuly

2015
2014
2013
2012
2011
2010

Onagraceae
Camissonia strigulosa
Sandysoil Suncup

MarMay

2015
2014
Camissoniopsis cheiranthifolia
Beach Evening Primrose

All year

2015
2014
2013
2012
2011
2010
Clarkia bottae
Punchbowl Clarkia

MarSep

2015
2014
2013
2012
2011
2010
Clarkia epilobiodes
Willow Herb Clarkia

MarMay

2015
2014
2013
2012
2011
Clarkia purpurea-purpurea
Winecup

AprJuly

2015
2014
2012
2011
2010
Clarkia purpurea-quadrivulnera
Four-spot

MarAug

2015
2014
2013
2012
2011
2010
Clarkia unguiculata
Elegant Clarkia

MarSep

2015
2014
2013
2012
2011
2010
Epilobium canum
California-fuchsia

MayJan

2015
2014
2013
2012
2011
2010
Epilobium ciliatum
Common Willowherb

MayDec

2014
2013
2012
Epilobium densiflorum
Dense-Flowered Willowherb

MayAug

2015
2014
Eulobus californicus
California suncup

JanAug

2015
2014
2013
2012
2011
2010
Gaura coccinea
Linda tarde

MarOct

2013
2012
2011
2010
Oenothera elata
Evening Primrose

All year

2015
2014
2013
2012
2011
2010

Anacardiaceae
Malosma laurina
Laurel sumac

January

2015
2014
2013
2012
2011
2010
2009
Rhus ovata
Sugar sumac

FebJune

2015
2014
2013
2012
2011
2010
Rhus trilobata
Skunkbush

FebMay

2015
2014
2012
2011
Toxicodendron diversilobum
poison oak

DecMay

2015
2014
2013
2012
2011
2010
2009

Cucurbitaceae
Cucurbita foetidissima
Calabazilla

MayDec

2015
2014
2013
Marah fabaceus
common manroot

NovJune

2015
2014
2013
2012
2011
2010
2009
2008

Datiscaceae
Datisca glomerata
Durango Root

AprJuly

2015
2014
2013
2012
2011
2010

Fabaceae
Amorpha californica
mock locust

MayJune

2015
2014
2012
Lathyrus vestitus
common pacific pea

SepJune

2015
2014
2013
2012
2011
2010
Vicia gigantea
Giant Vetch

FebMay

2015
2013
2012
2011
2010
Vicia villosa
Hairy Vetch

DecJuly

2015
2014
2013
2012
2011
2010
2006
Astragalus filipes
Milkvetch

FebJune

2015
2014
2013
2012
2011
2010
Genista monspessulana
French broom

FebAug

2015
2014
2013
2012
2011
2010
Lupinus albifrons
Silver Lupine

MarAug

2015
2014
2013
2012
2011
2010
Lupinus bicolor
miniature lupine

FebJune

2015
2014
2013
2012
2011
2010
Lupinus chamissonis
Dune lupine

FebOct

2015
2014
2013
2012
2010
Lupinus hirsutissimus
stinging lupine

JanJune

2015
2014
2013
2012
2011
2010
Lupinus latifolius
Canyon Lupine

FebMay

2015
2014
2013
2012
2011
2010
Lupinus microcarpus-densiflorus
Chick lupine

MarJune

2015
2014
2013
2012
2011
2010
Lupinus nanus
sky lupine

FebJune

2015
2014
2013
2012
2011
2010
Lupinus sparsiflorus
Mojave Lupine

FebJuly

2015
2014
Lupinus succulentus
arroyo lupine

DecJuly

2015
2014
2013
2012
2011
2010
2009
Acmispon americanus
Spanish clover

MayAug

2015
2014
2013
2012
2011
Acmispon brachycarpus
Short Podded Lotus

AprMay

2015
Acmispon glaber
Deerweed

All year

2015
2014
2013
2012
2011
2010
Acmispon grandiflorus
Chaparral lotus

DecJune

2015
2014
2013
2012
2011
2010
Acmispon maritimus
Coastal Lotus

JanJuly

2015
2014
2013
2012
2011
2010
Lotus corniculatus
Birdsfoot Trefoil

DecJune

2015
2014
2013
2012
2011
Hoita macrostachya
California Hemp

MayNov

2014
2013
2012
2011
2010
Rupertia physodes
California Tea

MayJune

2014
2013
2012
2011
Pickeringia montana
Chaparral-pea

MarAug

2015
2014
2013
2012
2011
2010
2009
Medicago polymorpha
Bur Clover

May

2015
Medicago sativa
alfalfa

MayJune

2013
2012
2011
2010
Melilotus albus
white sweet clover

All year

2015
2014
2013
2012
2011
2010
Melilotus indicus
yellow sweet clover

SepJuly

2015
2014
2013
2012
2011
2010
Trifolium ciliolatum
Tree Clover

AprMay

2015
2014
Trifolium hirtum
Red Clover

MarMay

2015
2014
2013
2012
2011
2010
Trifolium willdenovii
Tomcat clover

AprJune

2015
2013
2012
2011
2010

Fagaceae
Quercus agrifolia
Coast live oak

JanMay

2015
2014
2012
Quercus sp
Scrub Oak

FebMay

2015
2014
2013
2012

Rhamnaceae
Ceanothus crassifolius
Hoary-leaved Ceanothus

JanJune

2015
2014
2013
2012
2011
2010
Ceanothus megacarpus
Bigpod Ceanothus

DecJune

2015
2014
2013
2012
2011
2008
Ceanothus spinosus
Greenbark

DecAug

2015
2014
2013
2012
2011
2010
2009
Ceanothus thyrsiflorus
Blue Bush

DecJune

2015
2014
2013
2012
2011
2010
2009
Rhamnus californica
Coffee Berry

AprJuly

2015
2014
2013
2012
2011
Rhamnus ilicifolia
Holly-leaved Redberry

FebMay

2015
2013
2012
2011

Rosaceae
Adenostoma fasciculatum
Chamise

MarSep

2015
2014
2013
2012
2011
2010
Cercocarpus betuloides
Mountain Mahogany

FebJune

2015
2014
2013
2012
2011
2010
Drymocallis glandulosa
Sticky Potentilla

MarJune

2015
2014
2013
2012
2011
2010
Drymocallis glandulosa-reflexa
Reflexed Sticky Cinquefoil

AprMay

2015
2014
Heteromeles arbutifolia
Toyon

FebDec

2015
2014
2013
2012
2011
2010
Holodiscus discolor
Rockspiraea

MayJuly

2015
2014
2012
2011
Horkelia cuneata
Wedge-leaved horkelia

MarJune

2015
2014
2013
2012
2011
2010
Prunus ilicifolia
Holly-leaved cherry

JanJune

2015
2014
2013
2012
2011
2010
2009
Rosa californica
california wild rose

FebNov

2015
2014
2013
2012
2011
2010
Rubus ursinus
california blackberry

DecJuly

2015
2014
2013
2012
2011
2010

Urticaceae
Urtica dioica
Stinging Nettle

MayOct

2015
2014
2012
2011
2010

Euphorbiaceae
Croton californicus
California croton

All year

2015
2014
2013
2012
2011
2010
Croton setigerus
Dove weed

MayDec

2015
2014
2013
2012
2011
Euphorbia crenulata
Chinese Caps

JanMay

2014
2013
2012
2011
Euphorbia dendroides
Tree Spurge

JanJune

2012
Ricinus communis
Castor bean

All year

2014
2013
2012
2011
2010

Linaceae
Hesperolinon micranthum
Common Dwarf Flax

MayJune

2015
2014

Salicaceae
Populus trichocarpa
Black cottonwood

FebMar

2015

Violaceae
Viola pedunculata
Johnny jump-up

FebMay

2015
2014
2013
2012

Oxalidaceae
Oxalis corniculata
Yellow Sorrel

DecJune

2015
2014
2013
2012
2011
Oxalis pes-caprae
sourgrass

NovJune

2015
2014
2013
2012
2011
2010

Berberidaceae
Berberis pinnata
California barberry

FebMay

2015
2014

Papaveraceae
Dendromecon rigida
Bush poppy

All year

2015
2014
2013
2012
2011
2010
2009
Ehrendorferia chrysantha
Golden Eardrops

All year

2015
2014
2013
2012
2011
2010
Eschscholzia caespitosa
Tufted Poppy

JanSep

2015
2014
2013
2012
2011
2010
Eschscholzia californica
California poppy

DecOct

2015
2014
2013
2012
2011
2010
2009
2008
Fumaria officinalis
Drug fumitory

MarMay

2015
Papaver californicum
fire poppy

JanMay

2011
2010
Platystemon californicus
Cream Puffs

MarMay

2015
2014

Ranunculaceae
Clematis lasiantha
wild clematis

JanMay

2015
2014
2013
2012
2011
2010
2009
Delphinium cardinale
cardinal larkspur

MayJuly

2015
2014
2013
2012
2011
2010
2009
Delphinium parishii
pale larkspur

FebJuly

2015
2014
2013
2012
2011
2010
Delphinium parryi
purple larkspur

FebJune

2015
2014
2013
2012
2011
2010
Delphinium patens
spreading larkspur

JanJune

2014
2013
2012
2011
2010
Ranunculus californicus
California Buttercup

JanMay

2015
2014
2013
2012
2011
Thalictrum fendleri
Fendler’s Meadow-rue

FebMay

2015