Taxon Report

Cryptantha traskiae Jtn.

Trask's cryptantha

Print Report

Taxon Summary

Cryptantha traskiae, commonly known as Trask's cryptantha, is a annual herb in the Boraginaceae that is found only in California. It occurs within Coastal bluff scrub, Coastal dunes, and Coastal scrub, growing at elevations from 15 to 400 meters. Cryptantha traskiae is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Cryptantha traskiae Jtn.
Common Name:	Trask's cryptantha
Family:	Boraginaceae
Element Code:	PDBOR0A370
USDA Plants Symbol:	CRTR7
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Mar-Jun	Mar-Jun
Elevation:	15-400 (50-1310)
General Habitats:	Coastal bluff scrub, Coastal dunes, Coastal scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:	changed from 1B.2 to 1B.1 on 2010-07-22

Occurrence Data from the CNDDB


Total Occurrences:	17
Element Occurrence Ranks:
Excellent (A)	2
Good (B)	2
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	13

Location


California Endemic: True
California Counties and Islands: Name (Code)
Los Angeles (LAX), Ventura (VEN)
Quads: Name (Quad Code)
San Clemente Island Central (3211874), San Clemente Island North (3211885), San Clemente Island South (3211873), San Nicolas Island (3311924)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	2	12 %
Non-native plant impacts	2	11%

Notes



Threatened by non-native plants and Navy activities. See Contributions from the Gray Herbarium 74:77-78 (1925) 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 8 December 2025].