Taxon Details

Pleuropogon californicus var. davyi

Davy's semaphore grass

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Taxon Summary:

Pleuropogon californicus var. davyi, commonly known as Davy's semaphore grass, is a perennial rhizomatous herb in the Poaceae that is found only in California. It occurs within Cismontane woodland, Lower montane coniferous forest, and Meadows and seeps, growing at elevations from 150 to 610 meters. Pleuropogon californicus var. davyi is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification

Scientific Name: Pleuropogon californicus (C.G. Nees von Esenbeck) Vasey var. davyi (Benson) A. Löve & D. Löve
Common Name: Davy's semaphore grass
Family:	Poaceae
Element Code:	PMPOA7Y012
USDA Plants Symbol:	PLCAD
Synonyms/Other Names: Pleuropogon davyi L. Benson Lophochlaena californica Nees var. davyi (L. Benson) Love & Love
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G5T3
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: Mar-Jun

Elevation:
150 - 610 meters
490 - 2000 feet

General Habitats:

Cismontane woodland
Lower montane coniferous forest
Meadows and seeps

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by non-native plants and road construction. See P. californicus in The Jepson Manual. See American Journal of Botany 28:360 (1941) for original description, and Novon 4:16-17 (1994) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

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

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

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Mendocino (MEN), Trinity (TRI)

Quads: Name (Quad Code)
Covelo East (3912372), Lake Mountain (4012314), Laytonville (3912364), Willits (3912343)

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