Heliotropium amplexicaule (clasping heliotrope) is a perennial herb/ (family Boraginaceae) with purple flowers and narrow leaves found in the San Francisco Bay area, south coast and desert ranges of California. It is native to Argentina. It occurs in grasslands. It spreads via seeds and root fragments. The sticky seeds can be dispersed by animals, water […]

Heracleum mantegazzianum (giant hogweed) is a herb/ (family Apiaceae) with white flowers and large toothed leaves found in the northwestern ranges of Oregon. It is native to central Asia. It favors grasslands and riparian and bottomland habitat. It reproduces only by seed. Seeds fall within 13 feet of the parent plant and can be carried […]

Hyparrhenia hirta (Tambookie grass) is a perennial grass (family Poaceae) that can grow to be more than 3 feet tall and grows tiny yellow flowers at its tip. It is found in the south coast ranges of California. It is native to Eurasia and Africa. It favors grasslands and scrub and chaparral habitat. It reproduces […]

Hypericum androsaemum (sweet-amber) is a shrub (family Clusiaceae) with yellow flowers and oval shaped leaves found in the San Francisco Bay area in California. It is native to Europe and western Asia. It favors woodlands, forests and riparian and bottomland habitat. It reproduces by seed. Animals, water, mud and machinery can disperse this plant.

Hypericum grandifolium (large-leaved Hypericum) is a shrub (family Clusiaceae) with yellow flowers and oval-shaped leaves found in the San Francisco Bay area in California. It is native to Madeira and the Canary Islands. It grows in woodlands. It spreads via rhizomes and seeds. Its seeds are buoyant and can be carried by water.

Ipomoea indica (blue morning glory) is a vine (family Convolvulaceae) with blue-purple flowers and lobed to oval-shaped leaves found in the San Francisco Bay area and the central and south coast ranges of California. It is native to the southeastern United States. It favors riparian and bottomland habitat. It reproduces vegetatively via root fragments and […]

Kniphofia uvaria (redhot poker) is a perennial herb/ (family Liliaceae) with red to yellow flowers and long narrow grasslike leaves found in the coastal ranges of California. It is native to South Africa. It favors bog and marsh, riparian and bottomland, and scrub and chaparral habitats. It produces seeds and spreads by rhizomes. The seeds […]

Lantana camara (lantana) is a shrub (family Verbenaceae) with a multicolored cluster of flowers and fragrant oval-shaped leaves found in the central and south coast ranges of California. It is native to the Caribbean. It favors grasslands, woodlands, and riparian and bottomland habitat. It produces seeds and spreads through its roots. Birds, sheep, goats and […]

Leptospermum laevigatum (Australian tea tree) is a shrub (family Myrtaceae) with white flowers and narrow leaves found in the San Francisco Bay area and central and south coast ranges of California. It is native to southeastern Australia. It grows in dunes. Its seeds are spread via wind, vehicles, soil movement, water and dumped garden waste.

Malephora crocea (coppery Mesembryanthemum) is a herb/subshrub (family Aizoaceae) with red flowers and narrow succulent-like leaves found in the south coast ranges of California. It is native to southern Africa. It favors grasslands, dunes, and scrub and chaparral habitat. It spreads via seeds and root nodes. Water helps disperse the seeds.