Taxon Report

Lupinus uncialis Wats.

lilliput lupine

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Taxon Summary

Lupinus uncialis, commonly known as lilliput lupine, is a annual herb in the Fabaceae that is found in California and elsewhere. It occurs within Great Basin scrub, and Pinyon and juniper woodland, growing at elevations from 1300 to 1600 meters. Lupinus uncialis is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.


  Classification

Scientific Name:
Lupinus uncialis Wats.
Common Name:
lilliput lupine
Family: Fabaceae
Element Code: PDFAB2B410
USDA Plants Symbol: LUUN
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: May-Jul May-Jul
Elevation: 1300-1600 (4265-5250)
General Habitats: Great Basin scrub, Pinyon and juniper woodland
Microhabitat: Gravelly, Volcanic
Microhabitat Details:

Conservation Status

CA Rare Plant Rank: 2B.2
Global Rank: G4
State Rank:
S2
State List: None
Fed List: None
Other Status: BLM_S
CRPR Changes:
  • changed from 2.2 to 2B.2 on 2013-06-12

Occurrence Data from the CNDDB

Total Occurrences: 18
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 18
California Endemic:  False
California Counties and Islands: Name (Code)
Modoc (MOD)
Quads: Name (Quad Code)
Alturas (4112045), Infernal Caverns (4112035), Rattlesnake Butte (4112046), Tule Mountain (4112024)

Threat List Data from the CNDDB

Threat List Total: 5
EOs with Threat Listed: Total EOs % of EOs
17 94 %
Other 15 83%
Road/trail construction/maint. 1 5%
Development 1 5%
Grazing 1 5%
ORV activity 1 5%

Notes

Known in CA from fewer than twenty occurrences. Threatened by development. Threatened in ID. Not in The Jepson Manual. See Botany of the King Exploration, p. 54 (1871) for original description.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 12 May 2025].