Swallenia alexandrae is a perennial grasslike herb (rhizomatous) that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
State of California status: Rare.
Federal status: Threatened.
[Wikipedia] Endangered Species: This is a federally listed threatened species of the United States.[9] The main threat to the species survival has been off-roading, which is no longer permitted in its habitat. Trespassing off-roaders and campers are still a threat to the five remaining occurrences. (link added by Mary Ann Machi)
[Wikipedia] Taxonomy: This genus was named for American botanist Jason Richard Swallen (1903-1991). The species was named for American philanthropist and paleontological collector Annie Montague Alexander. (link added by Mary Ann Machi)
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 04/01/2025).
one or more occurrences