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Livermore tarweed

Deinandra bacigalupii

Also called Livermore Moonshine, Livermore Tarplant

Livermore tarweed
Photo: Jeb McKay Bjerke, Public domain

Livermore tarweed is a rare, endangered annual wildflower found only near Livermore, California, on alkali soils. It is grown mainly for conservation, and the key to growing it is reproducing its specific alkali soil and open, sunny habitat.

Family
Asteraceae (Daisy family)
Light
Full sun
Water
Water sparingly; it is adapted to seasonal rain and dry summers.
Soil
Alkali, sandy loam soil with good drainage, such as Solano fine sandy loam.
Temperature
Tolerates mild Mediterranean-type conditions; protect from hard frost.
How easy
Hard
Native range
California

About

Deinandra bacigalupii is a rare species of flowering plant in the family Asteraceae, known by the common names Livermore tarplant and Livermore moonshine. It is endemic to Alameda County, California, and is only found within a half-mile of the city limits of Livermore, in the eastern portion of the Livermore Valley. The plant is considered endangered under the California Endangered Species Act, and there are only four known populations; a fifth was destroyed by a landscaping business in 2014. The majority is located on city property near the Springtown neighborhood. It grows in open areas with alkali soils, in alkali meadows and on the edges of alkali sinks, and appears to be restricted to a soil called Solano fine sandy loam. This plant was previously included within Deinandra increscens ssp. increscens, but it was separated and elevated to species level in 1999.

Other Deinandra plants

Red Rock tarweed · Catalina tarweed · Otay tarweed · Coastal tarweed · Clustered moonshine-daisy · Greene's Tarweed · Hall's tarweed · Grassland tarweed · Kellogg's Tarweed · Three Ray Tarweed · Deinandra martirensis · Santa Susana tarweed

Text excerpted from the Wikipedia article Deinandra bacigalupii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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