Clematis vitalba (old man’s beard) is a vine (family Ranunculaceae) with white flowers and oval-shaped leaves found in the central coast ranges of California. It is native to the United Kingdom. It favors forests and woodlands. It spreads via seeds and roots. Means of dispersal include water, wind, humans and animals.

Colocasia esculenta (taro root) is a perennial herb (family Araceae) with yellow-orange flowers and large heart-shaped leaves found in the Central Valley of California. It is native to eastern Asia. It favors grasslands, wetlands, and bog and marsh habitat. It spreads via seeds and vegetative corms and is sometimes cultivated as a crop. Seeds are […]

Geranium purpureum (little robin) is a herb (family Geraniaceae) with pink flowers and lobed leaves found in the San Francisco Bay area and central coast ranges of California. It is native to Europe, northern Africa and western Asia. It favors grasslands and woodlands. It spreads via seeds which land within a short distance of the […]

Ligustrum lucidum (glossy privet) is a shrub/tree (family Oleaceae) with white flowers and shiny oval-shaped leaves found in the San Francisco Bay area, Sacramento Valley, coastal ranges and southwestern ranges of California. It is native to China, Japan and Korea. It favors grasslands, woodlands and riparian and bottomland habitat. It spreads via seeds and root […]

Limonium duriusculum (European sea lavender) is a perennial herb (family Plumbaginaceae) with tiny purple flowers and oval-shaped leaves found primarily in the San Francisco Bay area and central and south coast of California. Populations extend into the coast ranges. Limonium duriusculum is similar to another co-occurring, non-native sea lavender (L. ramosissimum) but can be differentiated […]

Mesembryanthemum nodiflorum (slenderleaf iceplant) is a herb/ (family Aizoaceae) with white to yellow flowers and narrow succulent-like leaves found in the San Francisco Bay area, Channel Islands, central valley, desert ranges and south coast ranges of California. It is native to southern Africa. It favors wetlands and dunes. It propagates by seed which is dispersed […]

Tribulus terrestris (puncture vine) is an annual herb (family Zygophyllaceae) with yellow-white flowers and narrow hairy leaves found all over California. It is native to the Mediterranean. It favors grasslands and dunes. It propagates by seed. Seeds are dispersed via water, wool, vehicles and agricultural activities.

Volutaria tubuliflora (desert knapweed) is an annual herb (family Asteraceae) with pink-purple flowers and lobed hairy leaves found in the desert ranges and south coast ranges of California. It is native to northern Africa and the Mediterranean Basin. It favors grasslands, dunes, scrub and chaparral habitat. It propagates via multitudes of seeds. Seeds are dispersed […]

Acacia baileyana (cootamunda wattle) is a shrub (family Fabaceae) with yellow flowers and finely dissected leaves found in the coastal ranges, San Francisco Bay area and transverse ranges of California. It is native to Southeastern Australia. It favors scrub and chaparral habitat. It has long-lived seeds that accumulate in the soil and germinate after fires, […]

Festuca myuros (rat-tail fescue) is an annual grass (family Poaceae) widely distributed in California. This species is one of many introduced annual grasses that reduces habitat for native perennial grasses.