Taxon Details

Streptanthus insignis ssp. lyonii

Arburua Ranch jewelflower

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Streptanthus insignis ssp. lyonii, commonly known as Arburua Ranch jewelflower, is a annual herb in the Brassicaceae that is found only in California. It occurs within Coastal scrub, growing at elevations from 230 to 855 meters. Streptanthus insignis ssp. lyonii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Streptanthus insignis Jeps. ssp. lyonii Kruckeberg & Morrison
Common Name: Arburua Ranch jewelflower
Family:	Brassicaceae
Element Code:	PDBRA2G0Q1
USDA Plants Symbol:	STINL
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G3G4T2
State Rank:	S2
Other Status:	BLM_S
CRPR Changes:
Add Date:	1984-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-May

Elevation:
230 - 855 meters
755 - 2805 feet

General Habitats:

Coastal scrub (sometimes serpentinite)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known from fewer than ten occurrences, where not often reported recently. Threatened by grazing, and potentially by reservoir construction. See Madroño 30(4):230-244 (1985) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	3
	Total EOs	% of EOs
EOs with Threat Listed:	12	57 %
Grazing	12	57%
Dam/Inundation	6	28%
Recreational use (non-ORV)	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					21
A	B	C	D	X	U
2	2	0	0	0	17

Occurrence Status:
Historical >20 Years	21
Recent <=20 Years	0

Presence:
Presumed Extant	21
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Merced (MER)

Quads: Name (Quad Code)
Los Banos Valley (3612181), Ortigalita Peak (3612078), Ortigalita Peak NW (3612088), Ruby Canyon (3612171)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory