Taxon Details

Delphinium hansenii ssp. ewanianum

Ewan's larkspur

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Taxon Summary:

Delphinium hansenii ssp. ewanianum, commonly known as Ewan's larkspur, is a perennial herb in the Ranunculaceae that is found only in California. It occurs within Cismontane woodland, and Valley and foothill grassland, growing at elevations from 60 to 600 meters. Delphinium hansenii ssp. ewanianum is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification

Scientific Name: Delphinium hansenii (Greene) Greene ssp. ewanianum Warnock
Common Name: Ewan's larkspur
Family:	Ranunculaceae
Element Code:	PDRAN0B0T2
USDA Plants Symbol:	DEHAE
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G4T3
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2021-12-09

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Mar-May

Elevation:
60 - 600 meters
195 - 1970 feet

General Habitats:

Cismontane woodland
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Rocky

Notes

Notes: To be expected in other foothill areas of the Sierra Nevada; need information. Populations are very local; many in developing areas. See Phytologia 68(1):1-6 (1990) for original description.
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)
Amador (AMA), Calaveras (CAL), El Dorado (ELD), Fresno (FRE), Madera (MAD), Mariposa (MPA), Merced (MER), Stanislaus (STA), Tulare (TUL), Tuolumne (TUO)

Quads: Name (Quad Code)
Ahwahnee (3711936), Auberry (3711914), Berenda (3712012), Bonita Ranch (3612082), Cairns Corner (3611922), Copperopolis (3712086), Ducor (3511981), El Nido (3712024), Feliciana Mtn. (3711958), Friant (3611986), Garden Valley (3812077), Humphreys Station (3611984), Keystone (3712075), Knowles (3711927), La Grange (3712064), Little Table Mtn. (3711917), Millerton Lake East (3711915), Millerton Lake West (3711916), Monson (3611943), O'Neals (3711926), Owens Reservoir (3712032), Piedra (3611974), Shaver Lake (3711913), Sonora (3712084), Standard (3712083), Yosemite Lake (3712044)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory