Taxon Report

Agrostis blasdalei Hitchc.

Blasdale's bent grass

Print Report

© 2001 Doreen L. Smith

Classification


Scientific Name:	Agrostis blasdalei Hitchc.
Common Name:	Blasdale's bent grass
Family:	Poaceae
Element Code:	PMPOA04060
USDA Plants Symbol:	AGBL
Synonyms/Other Names:	Agrostis blasdalei Hitchc. var. blasdalei Agrostis blasdalei Hitchc. var. marinensis Crampt.

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: May-Jul	May-Jul
Elevation:	0-150 (0-490)
General Habitats:	Coastal bluff scrub, Coastal dunes, Coastal prairie
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G2G3
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	BLM_S; SB_UCSC
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	62
Element Occurrence Ranks:
Excellent (A)	1
Good (B)	13
Fair (C)	13
Poor (D)	3
None (X)	0
Unknown (U)	32

Location


California Endemic: True
California Counties and Islands: Name (Code)
Marin (MRN), Mendocino (MEN), Monterey (MNT), San Mateo (SMT), Santa Cruz (SCR), Sonoma (SON)
Quads: Name (Quad Code)
Albion (3912327), Ano Nuevo (3712213), Big Sur (3612137), Bodega Head (3812331), Davenport (3712212), Drakes Bay (3812218), Duncans Mills (3812341), Elk (3912326), Fort Bragg (3912347), Fort Ross (3812352), Gualala (3812375), Inverness (3812217), Mendocino (3912337), Montara Mountain (3712254), Pigeon Point (3712224), Plantation (3812353), Point Arena (3812386), Point Sur (3612138), Santa Cruz (3612281), Saunders Reef (3812376), Stewarts Point (3812364), Tomales (3812228), Valley Ford (3812238), Westport (3912367)

Threat List Data from the CNDDB


Threat List Total:	12
EOs with Threat Listed:	Total EOs	% of EOs
	27	44 %
Non-native plant impacts	12	19%
Grazing	8	12%
Erosion/runoff	6	9%
Foot traffic/trampling	6	9%
Recreational use (non-ORV)	4	6%
Road/trail construction/maint.	4	6%
Other	3	4%
Development	3	4%
Mining	2	3%
Disease	1	1%
Agriculture	1	1%
Altered flood/tidal/hydrologic regime	1	1%

Notes



Historical occurrences need field surveys. Threatened by agriculture, recreation, development, and competition from non-native plants. Includes A. blasdalei var. marinensis, which is state-listed Rare.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].