Taxon Details

Eschscholzia minutiflora ssp. twisselmannii

Red Rock poppy

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Taxon Summary:

Eschscholzia minutiflora ssp. twisselmannii, commonly known as Red Rock poppy, is a annual herb in the Papaveraceae that is found only in California. It occurs within Mojavean desert scrub, growing at elevations from 680 to 1230 meters. Eschscholzia minutiflora ssp. twisselmannii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Eschscholzia minutiflora Wats. ssp. twisselmannii C. Clark & Faull
Common Name: Red Rock poppy
Family:	Papaveraceae
Element Code:	PDPAP0A093
USDA Plants Symbol:	ESMIT
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G5T2
State Rank:	S2
Other Status:	BLM_S; SB_CalBG/RSABG; SB_USDA
CRPR Changes: removed from 1B.2 on 2013-02-01
Add Date:	1994-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-May

Elevation:
680 - 1230 meters
2230 - 4035 feet

General Habitats:

Mojavean desert scrub (volcanic tuff)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known only from the Rand and El Paso mountains. Threatened by vehicles. A synonym of E. minutiflora in TJM (1993) and TJM 2. See Madroño 38(2):73-79 (1991) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	10
	Total EOs	% of EOs
EOs with Threat Listed:	20	74 %
ORV activity	19	70%
Mining	12	44%
Non-native plant impacts	4	14%
Other	4	14%
Grazing	3	11%
Vandalism/dumping/litter	2	7%
Recreational use (non-ORV)	2	7%
Road/trail construction/maint.	1	3%
Erosion/runoff	1	3%
Foot traffic/trampling	1	3%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					27
A	B	C	D	X	U
4	12	6	1	0	4

Occurrence Status:
Historical >20 Years	16
Recent <=20 Years	11

Presence:
Presumed Extant	27
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

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

Quads: Name (Quad Code)
Cantil (3511738), Edwards (3411788), El Paso Peaks (3511746), Garlock (3511747), Johannesburg (3511736), Klinker Mtn. (3511745), Saltdale NW (3511748)

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