Taxon Report

Hesperidanthus jaegeri (Rollins) Al-Shehbaz

Jaeger's hesperidanthus

Print Report

Taxon Summary

Hesperidanthus jaegeri, commonly known as Jaeger's hesperidanthus, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Great Basin scrub, Pinyon and juniper woodland, and Subalpine coniferous forest, growing at elevations from 2135 to 2800 meters. Hesperidanthus jaegeri is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Hesperidanthus jaegeri (Rollins) Al-Shehbaz
Common Name:	Jaeger's hesperidanthus
Family:	Brassicaceae
Element Code:	PDBRA0N010
USDA Plants Symbol:
Synonyms/Other Names:	Thelypodium jaegeri Caulostramina jaegeri

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: May-Jul	May-Jul
Elevation:	2135-2800 (7005-9185)
General Habitats:	Great Basin scrub, Pinyon and juniper woodland, Subalpine coniferous forest
Microhabitat:	Carbonate, Rocky
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	BLM_S; SB_CalBG/RSABG; USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	7
Element Occurrence Ranks:
Excellent (A)	3
Good (B)	1
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	3

Location


California Endemic: True
California Counties and Islands: Name (Code)
Inyo (INY)
Quads: Name (Quad Code)
Cerro Gordo Peak (3611757), New York Butte (3611768), Waucoba Mtn. (3711811)

Threat List Data from the CNDDB


Threat List Total:	5
EOs with Threat Listed:	Total EOs	% of EOs
	4	57 %
Mining	4	57%
Non-native animal impacts	1	14%
Non-native plant impacts	1	14%
ORV activity	1	14%
Recreational use (non-ORV)	1	14%

Notes



Known only from the Inyo Mtns. See Contributions from the Dudley Herbarium 3:174 (1941) for original description, and Contributions from the Gray Herbarium 204:155-157 (1973) for revised nomenclature.
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 5 February 2025].