Species Details

Chorizanthe robusta var. hartwegii

Scotts Valley spineflower

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Scientific Name:
Chorizanthe robusta Parry var. hartwegii (Benth.) Rev. & Morgan
Common Name:
Scotts Valley spineflower
Family: Polygonaceae
Element Code: PDPGN040Q1
USDA Plants Symbol: CHROH
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Apr-Jul
Elevation:
230 - 245 meters
755 - 805 feet
General Habitat:
  • Meadows and seeps (sandy)
  • Valley and foothill grassland (mudstone, Purisima outcrops)
General Micro Habitat:
Micro Habitat:
Notes:
Known only from Scotts Valley. Threatened by development, vehicles, and non-native plants. See C. robusta in TJM (1993). See Phytologia 67(5):357-360 (1989) for revised nomenclature, and Fremontia 24(4):8-11 (1996) for taxonomic discussion.
Threats:
Taxonomy:
Other:
Total Occurrences: 4
Element Occurrence Ranks:
A B C D X U
0 3 0 0 0 1
Occurrence Status:
Historical >20 Years 1
Recent <=20 Years 3
Presence:
Presumed Extant 4
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Santa Cruz (SCR)
Quads: Name (Quad Code)
Felton (3712211), Laurel (3712118)
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