Species Details

Polygala acanthoclada

thorny milkwort

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Scientific Name:
Polygala acanthoclada Gray
Common Name:
thorny milkwort
Family: Polygalaceae
Element Code: PDPGL02020
USDA Plants Symbol: POAC2
Synonyms/Other Names:
CA Rare Plant Rank: 2B.3
Fed List: None
State List: None
Global Rank: G4
State Rank:
S2S3
Other Status:
CRPR Changes:
changed from 2.3 to 2B.3 on 2013-06-12
Add Date: 2001-01-01
Date Edited: 2021-06-03
Lifeform: perennial shrub
Blooming Period: May-Aug
Elevation:
760 - 2285 meters
2495 - 7495 feet
General Habitat:
  • Chenopod scrub
  • Joshua tree "woodland"
  • Pinyon and juniper woodland
General Micro Habitat:
Micro Habitat:
Notes:
See Proceedings of the American Academy of Arts and Sciences 11:73 (1876) for original description.
Threats:
Taxonomy:
Other:
Total Occurrences: 27
Element Occurrence Ranks:
A B C D X U
0 4 0 0 0 23
Occurrence Status:
Historical >20 Years 5
Recent <=20 Years 22
Presence:
Presumed Extant 27
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Arizona (AZ), California (CA), Utah (UT)
California Counties and Islands: Name (Code)
Riverside (RIV), San Bernardino (SBD)
Quads: Name (Quad Code)
Castle Peaks (3511532), Crescent Peak (3511542), Ivanpah (3511533), Melville Lake (3411645), Mescal Range (3511545), Mineral Hill (3511544), Old Woman Springs (3411646), Pinto Valley (3511523), Porcupine Wash (3311577)
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