Taxon Report

Cryptantha excavata Bdg.

deep-scarred cryptantha

Print Report

Taxon Summary

Cryptantha excavata, commonly known as deep-scarred cryptantha, is a annual herb in the Boraginaceae that is found only in California. It occurs within Cismontane woodland (gravelly, and sandy), growing at elevations from 100 to 500 meters. Cryptantha excavata is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Cryptantha excavata Bdg.
Common Name:	deep-scarred cryptantha
Family:	Boraginaceae
Element Code:	PDBOR0A0W0
USDA Plants Symbol:	CREX
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-May	Apr-May
Elevation:	100-500 (330-1640)
General Habitats:	Cismontane woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	BLM_S
CRPR Changes:	changed from 1B.3 to 1B.1 on 2017-04-24 changed from 4.3 to 1B.3 on 2007-08-15

Occurrence Data from the CNDDB


Total Occurrences:	5
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	5

Location


California Endemic: True
California Counties and Islands: Name (Code)
Colusa (COL), Mendocino (MEN), Yolo (YOL)
Quads: Name (Quad Code)
Foster Mtn. (3912342), Glascock Mtn. (3812283), Lodoga (3912234), Wilbur Springs (3912214)

Threat List Data from the CNDDB


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

Notes



Potentially threatened by the development of a proposed reservoir. See Botanical Gazette 27(6):452-453 (1899) for original description.
Threats:

Taxonomy:

Selected References

CRPR List Change on 2007-08-15

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 30 October 2025].