Thelypodium howellii ssp. howellii is a perennial herb that is native to California, and also found elsewhere in western North America.California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
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1990 Dean Wm. Taylor:!
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals,
Consortium of California Herbaria.[web application]. 2022. Berkeley, California:The Calflora Database
[a non-profit organization].Available: