Species Details

Chlorogalum grandiflorum

Red Hills soaproot

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Scientific Name:
Chlorogalum grandiflorum Hoov.
Common Name:
Red Hills soaproot
Family: Agavaceae
Element Code: PMLIL0G020
USDA Plants Symbol: CHGR3
Synonyms/Other Names:
Lifeform: perennial bulbiferous herb
Blooming Period: (Apr)May-Jun
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Elevation:
245 - 1690 meters
805 - 5545 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
  • Lower montane coniferous forest
Microhabitat Details: other soils
Microhabitat:
  • Gabbroic
  • Serpentinite
Notes:
Threatened by development, mining, road construction, and vehicles. Possibly threatened by trail maintenance, logging and non-native plants. See Leaflets of Western Botany 2(8):128 (1938) for original description.
Threats:
Taxonomy:
Threat List Total: 15
Total EOs % of EOs
EOs with Threat Listed: 68 50 %
THREAT LIST:
Logging 31 22%
Road/trail construction/maint. 25 18%
Other 17 12%
Development 11 8%
Non-native plant impacts 10 7%
Total Occurrences: 137
Element Occurrence Ranks:
A B C D X U
7 41 19 5 0 65
Occurrence Status:
Historical >20 Years 24
Recent <=20 Years 113
Presence:
Presumed Extant 137
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Amador (AMA), Calaveras (CAL), El Dorado (ELD), Placer (PLA), Tuolumne (TUO)
Quads: Name (Quad Code)
Aukum (3812056), Chinese Camp (3712074), Clarksville (3812161), Colfax (3912018), Coloma (3812078), Devil Peak (3812085), Devils Nose (3812044), Dorrington (3812033), Foresthill (3912017), Fort Mountain (3812034), Garden Valley (3812077), Georgetown (3812087), Greek Store (3912015), Greenwood (3812088), Michigan Bluff (3912016), New Melones Dam (3712085), Omo Ranch (3812055), Pilot Hill (3812171), Pine Grove (3812046), Pollock Pines (3812075), Rail Road Flat (3812035), Riverton (3812074), Robbs Peak (3812084), Salt Spring Valley (3812016), Shingle Springs (3812068), Slate Mtn. (3812076), Sonora (3712084), Tunnel Hill (3812086), West Point (3812045)
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
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