Deinandra increscens is a species of flowering plant in the family Asteraceae known by the common name grassland tarweed. It is endemic to California, where it has been found primarily in Monterey, San Luis Obispo and Santa Barbara Counties (including Santa Cruz and Santa Rosa Islands). A few isolated populations have been reported from Kern and Merced Counties, but these are from urban areas (Cities of Merced and Bakersfield) and probably represent cultivated specimens.[2]

Deinandra increscens
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Deinandra
Species:	D. increscens
Binomial name
Deinandra increscens (H.M.Hall ex D.D.Keck) B.G.Baldwin
Synonyms[1]
Hemizonia increscens (H.M.Hall ex D.D.Keck) Tanowitz Hemizonia paniculata subsp. increscens H.M.Hall ex D.D.Keck Hemizonia increscens subsp. villosa Tanowitz, syn of subsp. villosa

Deinandra increscens is an annual up to 100 cm (40 inches) tall. It has numerous flower heads, often tightly clumped together, each with yellow ray florets and disc florets with yellow corollas but red or purple anthers.[3]

Subspecies[1]

• Deinandra increscens subsp. increscens grows along the California Central Coast and the coastal mountain ranges.
• Deinandra increscens subsp. villosa (Gaviota tarweed) is a rare and endangered subspecies[4] endemic to Santa Barbara County, where it is known only from an area on the Gaviota Coast.[5][6]

References

External links

• United States Department of Agriculture Plants Profile: Deinandra increscens
• Deinandra increscens - Calphotos Photo Gallery, University of California

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