Taxon Details

Calochortus clavatus var. recurvifolius

Arroyo de la Cruz mariposa-lily

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Taxon Summary:

Calochortus clavatus var. recurvifolius, commonly known as Arroyo de la Cruz mariposa-lily, is a perennial bulbiferous herb in the Liliaceae that is found only in California. It occurs within Chaparral (maritime), Coastal bluff scrub, Coastal prairie, and Lower montane coniferous forest, growing at elevations from 10 to 120 meters. Calochortus clavatus var. recurvifolius is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Calochortus clavatus Wats. var. recurvifolius (Hoov.) Fiedler & Zebell
Common Name: Arroyo de la Cruz mariposa-lily
Family:	Liliaceae
Element Code:	PMLIL0D098
USDA Plants Symbol:	CACLR3
Synonyms/Other Names: Calochortus clavatus Wats. ssp. recurvifolius (Hoov.) Munz
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G4T1
State Rank:	S1
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-07-14

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: Jun-Jul

Elevation:
10 - 120 meters
35 - 395 feet

General Habitats:

Coastal bluff scrub
Chaparral (maritime)
Coastal prairie
Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Notes

Notes: Known from fewer than ten occurrences. Threatened by grazing. See Leaflets of Western Botany 10(8):126 (1964) for original description, and Madroño 42(3):406 (1995) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	2
	Total EOs	% of EOs
EOs with Threat Listed:	4	80 %
Grazing	4	80%
Erosion/runoff	1	20%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					5
A	B	C	D	X	U
0	3	1	0	0	1

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	1

Presence:
Presumed Extant	5
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
San Luis Obispo (SLO)

Quads: Name (Quad Code)
Piedras Blancas (3512163)

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