Taxon Details

Acanthoscyphus parishii var. goodmaniana

Cushenbury oxytheca

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Photo of Acanthoscyphus parishii var. goodmaniana
© 2018 Michael Charters
Photo of Acanthoscyphus parishii var. goodmaniana
© 2006 Chris Wagner, SBNF
Photo of Acanthoscyphus parishii var. goodmaniana
© 2009 Thomas Stoughton

Taxon Summary:

Acanthoscyphus parishii var. goodmaniana, commonly known as Cushenbury oxytheca, is a annual herb in the Polygonaceae that is found only in California. It occurs within Pinyon and juniper woodland (carbonate, and talus), growing at elevations from 1219 to 2377 meters. Acanthoscyphus parishii var. goodmaniana is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Scientific Name:
Acanthoscyphus parishii (Parry) Small var. goodmaniana (Ertter) Reveal
Common Name:
Cushenbury oxytheca
Family: Polygonaceae
Element Code: PDPGN0J043
USDA Plants Symbol:
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos
Lifeform: annual herb
Blooming Period: May-Oct
JFMAMJJASOND
Elevation:
1219 - 2377 meters
4000 - 7800 feet
General Habitats:
  • Pinyon and juniper woodland (carbonate, talus)
Microhabitat Details:
Microhabitat:
  • Carbonate
  • Sandy
Notes:
Threatened by carbonate mining, non-native plants, powerline maintenance, and vehicles. See Brittonia 32: 70-102 (1980) for original description, Harvard Papers in Botany 9(1): 144 (2004) for revised nomenclature, and Phytologia 66(4): 386-387 (1989) for taxonomic treatment.
Threats:
Taxonomy:
Threat List Total: 6
Total EOs % of EOs
EOs with Threat Listed: 15 71 %
THREAT LIST:
Mining 15 71%
Road/trail construction/maint. 6 28%
ORV activity 3 14%
Improper burning regime 2 9%
Altered flood/tidal/hydrologic regime 1 4%
Total Occurrences: 21
Element Occurrence Ranks:
A B C D X U
5 4 3 1 0 8
Occurrence Status:
Historical >20 Years 11
Recent <=20 Years 10
Presence:
Presumed Extant 21
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Big Bear City (3411637), Butler Peak (3411731), Fawnskin (3411638), Fifteenmile Valley (3411741), Onyx Peak (3411626)
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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