Taxon Details

Thysanocarpus conchuliferus

Santa Cruz Island fringepod

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Taxon Summary:

Thysanocarpus conchuliferus, commonly known as Santa Cruz Island fringepod, is a annual herb in the Brassicaceae that is found only in California. It occurs within Chaparral, and Cismontane woodland, growing at elevations from 45 to 655 meters. Thysanocarpus conchuliferus is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Thysanocarpus conchuliferus Greene
Common Name: Santa Cruz Island fringepod
Family:	Brassicaceae
Element Code:	PDBRA2Q060
USDA Plants Symbol:	THCO9
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	FE (1997-07-31)
State List:	None
Global Rank:	G2?
State Rank:	S2
Other Status:	SB_SBBG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2024-03-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-Apr(May)

Elevation:
45 - 655 meters
150 - 2150 feet

General Habitats:

Chaparral
Cismontane woodland

Microhabitat Details:

Microhabitat:

Rocky

Notes

Notes: Known from fewer than fifteen occurrences; no plants present in 1993 or 1994 surveys, and only one known extant occurrence in 1995. Threatened by grazing, feral herbivores, and non-native plants.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					15
A	B	C	D	X	U
0	2	0	0	0	13

Occurrence Status:
Historical >20 Years	12
Recent <=20 Years	3

Presence:
Presumed Extant	15
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Santa Barbara (SBA)

Quads: Name (Quad Code)
Santa Cruz Island B (3311986), Santa Cruz Island C (3311985)

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