Species Details

Asclepias asperula ssp. asperula

antelope-horns

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Scientific Name:
Asclepias asperula (Dcne.) Woodson ssp. asperula
Common Name:
antelope-horns
Family: Apocynaceae
Element Code: PDASC02051
USDA Plants Symbol: ASASA
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: May-Sep
Elevation:
915 - 2195 meters
3000 - 7200 feet
General Habitat:
  • Mojavean desert scrub
  • Pinyon and juniper woodland
General Micro Habitat:
Micro Habitat:
  • Rocky
Notes:
See Annals of the Missouri Botanical Garden 41:193 (1954) for revised nomenclature.
Threats:
Taxonomy:
Other:
Total Occurrences: 0
Element Occurrence Ranks:
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
California Endemic:
California Island:
States: Name (Code)
Arizona (AZ), California (CA), Colorado (CO), Idaho (ID), 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)
Clark Mtn. (3511555), Fountain Peak (3411585), Ivanpah (3511533), Kelso (3511516), Mescal Range (3511545), 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.

Map

Presumed Extant
Counties   Quads