Taxon Details

Muhlenbergia fragilis

delicate muhly

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Taxon Summary:

Muhlenbergia fragilis, commonly known as delicate muhly, is a annual herb in the Poaceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland (carbonate, and gravelly), growing at elevations from 1600 to 1600 meters. Muhlenbergia fragilis is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Muhlenbergia fragilis Swall.
Common Name: delicate muhly
Family:	Poaceae
Element Code:	PMPOA480Q0
USDA Plants Symbol:	MUFR
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G5?
State Rank:	S2
Other Status:
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2022-08-02

Ecology and Life History

Lifeform: annual herb

Blooming Period: Oct

Elevation:
1600 - 1600 meters
5250 - 5250 feet

General Habitats:

Pinyon and juniper woodland (carbonate, gravelly)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known in CA only from the Clark and New York mountains. See Contributions from the U.S. National Herbarium 29:206 (1947) for original description, and Madroño 35(4):353 (1988) for first CA record.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	2
	Total EOs	% of EOs
EOs with Threat Listed:	1	33 %
Non-native animal impacts	1	33%
Non-native plant impacts	1	33%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					3
A	B	C	D	X	U
0	0	0	0	0	3

Occurrence Status:
Historical >20 Years	3
Recent <=20 Years	0

Presence:
Presumed Extant	3
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), Baja California (BA), California (CA), Nevada (NV), New Mexico (NM), Sonora, Mexico (SO), Texas (TX), Utah (UT)

California Counties and Islands: Name (Code)
San Bernardino (SBD)

Quads: Name (Quad Code)
Castle Peaks (3511532), Clark Mtn. (3511555), Pinto Valley (3511523)

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