Taxon Report

Lupinus gracilentus Greene

slender lupine

Print Report


Taxon Summary

Lupinus gracilentus, commonly known as slender lupine, is a perennial herb in the Fabaceae that is found only in California. It occurs within Subalpine coniferous forest, growing at elevations from 2500 to 3500 meters. Lupinus gracilentus is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

  Classification
Scientific Name:
 Lupinus gracilentus Greene
Common Name:
 slender lupine
Family: Fabaceae
Element Code: PDFAB2B1R0
USDA Plants Symbol: LUGR
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial herb
Blooming Period: Jul-Aug Jul-Aug
Elevation: 2500-3500 (8205-11485)
General Habitats: Subalpine coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.3
Global Rank: G3
State Rank:
 S3
State List: None
Fed List: None
Other Status: SB_SBBG
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 21
Element Occurrence Ranks:
   Excellent (A) 1
   Good (B) 3
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 17

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Madera (MAD), Mariposa (MPA), Mono (MNO), Tuolumne (TUO)
Quads: Name (Quad Code)
Cooper Peak (3811927), Emigrant Lake (3811926), Falls Ridge (3711984), Mariposa Grove (3711955), Merced Peak (3711964), Pinecrest (3811928), Piute Mtn. (3811915), Sing Peak (3711954), Tenaya Lake (3711974), Timber Knob (3711953), Tioga Pass (3711983), Vogelsang Peak (3711973), Yosemite Falls (3711975)

Threat List Data from the CNDDB

Threat List Total: 5
EOs with Threat Listed: Total EOs % of EOs
7 33 %
Foot traffic/trampling 5 23%
Other 2 9%
Road/trail construction/maint. 1 4%
Development 1 4%
Erosion/runoff 1 4%

Notes
Threatened by trail maintenance, foot traffic and recreational activities. See Proceedings of the Academy of Natural Sciences of Philadelphia 1892:365 (1893) for original description.
Threats:
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 17 July 2025].