Species Details

Agave simplex

lonesome agave

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Species Description:

Agave simplex, commonly known as lonesome agave, is a perennial leaf in the Agavaceae that is found in California and elsewhere. It occurs within Mojavean desert scrub, Pinyon and juniper woodland, and Sonoran desert scrub, growing at elevations from 320 to 1680 meters. Agave simplex is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Scientific Name:
Agave simplex (Gentry) Salywon & W. C. Hodgs.
Common Name:
lonesome agave
Family: Agavaceae
Element Code: PMAGA01062
USDA Plants Symbol:
Synonyms/Other Names:
Name Status: JEP, FNA, POWO,
IPNI, Tropicos
Lifeform: perennial leaf
Blooming Period: May-Jul
JFMAMJJASOND
Elevation:
320 - 1680 meters
1050 - 5510 feet
General Habitats:
  • Mojavean desert scrub
  • Pinyon and juniper woodland
  • Sonoran desert scrub
Microhabitat Details: desert mountains
Microhabitat:
  • Carbonate
  • Granitic
  • Rocky
  • Shale
  • Volcanic
Notes:
Field work needed to document historical occurrences, gather population data, assess site quality and threats, and search for new occurrences. May be more common than indicated by herbarium collections.
Threats:
Potentially threatened by inappropriate grazing.
Taxonomy:
Previously treated as a variety of A. deserti but morphologically and geographically distinct. Basal rosettes generally single, rarely with 1–3 offsets (vs. basal rosettes copiously suckering and forming large clumps in A. deserti). More closely related to A. mckelveyana (of Arizona) and A. subsimplex (of Sonora, Mexico).
Total Occurrences: 41
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 41
Occurrence Status:
Historical >20 Years 17
Recent <=20 Years 24
Presence:
Presumed Extant 41
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Arizona (AZ), California (CA), Nevada (NV), Sonora, Mexico (SO)
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Bighorn Basin (3411576), Chemehuevi Peak (3411455), Cima Dome (3511535), Fountain Peak (3411585), Horn Spring (3411427), Joshua (3511534), Mohawk Spring (3411447), Old Woman Statue (3411552), Van Winkle Spring (3411575), Whale Mtn. (3411465), Whipple Mts. SW (3411434), Whipple Wash (3411433)
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.
Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel
CNPS Status Review: Proposed Addition to 2B.3, G4 / S2 (2023)
Original Description: Occasional Papers of the California Academy of Sciences, no. 130 (1978)
Revised Nomenclature: Phytoneuron 2019-219: 1–4 (2019)

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