Taxon Details

Dudleya cymosa ssp. costatifolia

Pierpoint Springs dudleya

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Taxon Summary:

Dudleya cymosa ssp. costatifolia, commonly known as Pierpoint Springs dudleya, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Chaparral, and Cismontane woodland, growing at elevations from 1435 to 1600 meters. Dudleya cymosa ssp. costatifolia is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Dudleya cymosa (Lem.) Britton & Rose ssp. costatifolia Bartel & Shevock
Common Name: Pierpoint Springs dudleya
Family:	Crassulaceae
Element Code:	PDCRA040A2
USDA Plants Symbol:
Synonyms/Other Names: Dudleya cymosa ssp. costafolia
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G4T1
State Rank:	S1
Other Status:	USFS_S
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2024-08-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Jul

Elevation:
1435 - 1600 meters
4710 - 5250 feet

General Habitats:

Chaparral
Cismontane woodland

Microhabitat Details:

Microhabitat:

Carbonate

Notes

Notes: Known only from the Middle Fork of the Tule River. Threatened by potential limestone mining and horticultural collecting. See Aliso 12(4):701-704 (1990) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	1	50 %
Over-collecting/poaching	1	50%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					2
A	B	C	D	X	U
1	0	0	0	0	1

Occurrence Status:
Historical >20 Years	2
Recent <=20 Years	0

Presence:
Presumed Extant	2
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Tulare (TUL)

Quads: Name (Quad Code)
Camp Wishon (3611826), Case Mountain (3611847), Silver City (3611846)

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

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CNPS Rare Plant Inventory