Non-native species

Sadly, some of our most common wildflowers are not native but are taking over none-the-less. The mustards which cover our hills and the radishes which cover our mesas are both European imports.


Liliaceae
Asphodelus fistulosus
Asphodel

All year

Aizoaceae (Ice Plant family)
Carpobrotus chilensis
Sea Fig

OctDec
Carpobrotus edulis
Hottentot Fig

OctDec

Amaranthaceae (Amaranth family)
Salsola tragus
Tumbleweed

SepDec

Caryophyllaceae (Pinks family)
Silene gallica
Windmill Pink

FebJuly
Stellaria media
chickweed

MarJune

Polygonaceae (Buckwheat family)
Rumex crispus
Curly dock

JanJuly
Rumex pulcher
Fiddle dock

OctDec

Apiaceae (Parsley family)
Conium maculatum
poison hemlock

JanJuly
Foeniculum vulgare
fennel

JuneDec
Torilis arvensis-purpurea
Hedge parsley

AprJuly

Asteraceae (Asters, sunflowers family)
Matricaria discoidea
pineapple weed

FebMay
Hypochaeris glabra
Smooth Cat’s ear

JanJune
Hypochaeris radicata
Hairy Cat’s ear

JuneDec
Picris echioides
Prickly ox-tongue

MayDec
Sonchus asper
Prickly Sow-Thistle

All year
Taraxacum officionale
Dandelion

FebApr
Lactuca serriola
Prickly Lettuce

AugDec
Bidens pilosa
Beggar’s ticks

All year
Carduus tenuiflorus
Slender thistle

AprJune
Centaurea melitensis
Maltese star thistle

AprSep
Centaurea solstitialis
Yellow star thistle

MayNov
Cirsium vulgare
Bull thistle

JulySep
Silybum marianum
milk thistle

MarDec
Ambrosia artemisifolia
Common ragweed

OctDec
Ageratina adenophora
sticky snakeroot

FebOct
Delairea odorata
Cape Ivy

NovMar

Primulaceae (Primrose family)
Anagallis arvensis
Scarlet Pimpernel

AprOct

Apocynaceae (Dogbane family)
Vinca major
periwinkle

All year

Lamiaceae (Mint family)
Marrubium vulgare
Horehound

AprOct
Mentha spicata
Spearmint

JulyOct

Oleaceae (Olive family)
Olea europaea
European Olive

Plantaginaceae (Plantain family)
Plantago lanceolata
English Plantain

AprDec
Veronica anagallis-aquatica
Water Speedwell

JulyNov

Scrophulariaceae (Figwort family)
Verbascum virgatum
Wand Mullein

MayFeb

Convolvulaceae (Morning glory family)
Convolvulus arvensis
bindweed

JuneNov

Solanaceae (Nightshade family)
Nicotiana glauca
tree tobacco

All year

Brassicaceae (Mustard family)
Brassica nigra
black mustard

FebDec
Brassica rapa
field mustard

FebDec
Cakile maritima
sea rocket

All year
Capsella bursa-pastoris
Shepherd’s purse

MarApr
Lobularia maritima
Sweet Alyssum

DecJune
Raphanus ssp
wild radish

All year

Fabaceae (Legume family)
Lotus corniculatus
Birdsfoot Trefoil

MarJune
Medicago sativa
alfalfa

June
Melilotus albus
white sweet clover

All year
Melilotus indicus
yellow sweet clover

FebJune
Spartium junceum
Spanish broom

MarAug
Trifolium hirtum
Red Clover

AprMay
Vicia villosa
Hairy Vetch

MarJuly

Geraniaceae (Geraniums family)
Geranium dissectum
cut-leaved geranium

MarMay
Erodium botrys
long-beaked storksbill

JanSep
Erodium cicutarium
Red-stemmed storksbill

DecJuly

Euphorbiaceae (Spurge family)
Ricinus communis
Castor bean

All year

Cistaceae (Rock rose family)
Cistus incanus-creticus
Pink rockrose

AprAug

Malvaceae (Mallows family)
Malva nicaeensis
bull mallow

All year

Oxalidaceae (Oxalis family)
Oxalis corniculata
Yellow Sorrel

DecJune
Oxalis pes-caprae
sourgrass

NovJune
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