Taxon Report
Chorizanthe polygonoides T. & G. var. longispina (Goodm.) Munzlong-spined spineflower |
|
Taxon Summary
Chorizanthe polygonoides var. longispina, commonly known as long-spined spineflower, is a annual herb in the Polygonaceae that is found in California and elsewhere. It occurs within Chaparral, Coastal scrub, Meadows and seeps, Valley and foothill grassland, and Vernal pools, growing at elevations from 30 to 1530 meters. Chorizanthe polygonoides var. longispina is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
|
Scientific Name: |
Chorizanthe polygonoides T. & G. var. longispina (Goodm.) Munz |
|
Common Name: |
long-spined spineflower |
| Family: | Polygonaceae |
| Element Code: | PDPGN040K1 |
| USDA Plants Symbol: | CHPOL |
|
Synonyms/Other Names: |
|
Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Apr-Jul | Apr-Jul |
| Elevation: | 30-1530 (100-5020) |
| General Habitats: | Chaparral, Coastal scrub, Meadows and seeps, Valley and foothill grassland, Vernal pools |
| Microhabitat: | Clay (often) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G5T3 |
|
State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_CalBG/RSABG; SB_CRES |
|
CRPR Changes: |
|
Occurrence Data from the CNDDB
| Total Occurrences: | 166 |
| Element Occurrence Ranks: | |
| Excellent (A) | 6 |
| Good (B) | 31 |
| Fair (C) | 5 |
| Poor (D) | 1 |
| None (X) | 3 |
| Unknown (U) | 120 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Orange (ORA), Riverside (RIV), San Diego (SDG) | |
| Quads: Name (Quad Code) | |
| Aguanga (3311647), Alberhill (3311764), Bachelor Mtn. (3311751), Barrett Lake (3211666), Beauty Mountain (3311646), Black Star Canyon (3311776), Butterfly Peak (3311655), Cameron Corners (3211664), Cuyamaca Peak (3211685), Del Mar (3211782), Descanso (3211675), El Cajon Mtn. (3211687), Encinitas (3311713), Fallbrook (3311743), Hemet (3311668), Hot Springs Mtn. (3311635), Idyllwild (3311666), Imperial Beach (3211751), Jamul Mountains (3211668), Julian (3311615), La Jolla (3211772), La Mesa (3211771), Lake Elsinore (3311763), Lake Mathews (3311774), Live Oak Springs (3211663), Margarita Peak (3311744), Mesa Grande (3311627), Monument Peak (3211684), Murrieta (3311752), National City (3211761), Otay Mesa (3211658), Palm View Peak (3311665), Pechanga (3311741), Perris (3311772), Point Loma (3211762), Poway (3211781), Ramona (3311617), Romoland (3311762), Sage (3311658), San Clemente (3311745), Santa Ysabel (3311616), Sitton Peak (3311754), Steele Peak (3311773), Tierra Del Sol (3211653), Tule Springs (3211686), Vail Lake (3311648), Viejas Mountain (3211676), Warner Springs (3311636), Warners Ranch (3311626), Wildomar (3311753), Winchester (3311761) | |
Threat List Data from the CNDDB
| Threat List Total: | 13 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 38 | 23 % | |
| Development | 19 | 11% |
| Grazing | 10 | 6% |
| Non-native plant impacts | 7 | 4% |
| Road/trail construction/maint. | 7 | 4% |
| Recreational use (non-ORV) | 5 | 3% |
| ORV activity | 5 | 3% |
| Other | 3 | 1% |
| Agriculture | 3 | 1% |
| Foot traffic/trampling | 2 | 1% |
| Military operations | 2 | 1% |
| Mining | 2 | 1% |
| Disking | 1 | 0% |
| Vandalism/dumping/litter | 1 | 0% |
Notes
| Much habitat already lost to development; also threatened by non-native grasses and recreational activities. Possibly threatened by vehicles and grazing. See Leaflets of Western Botany 7(10):236 (1955) for original description, and Phytologia 66(2):176-179 (1989) for taxonomic treatment. |
|
Threats: |
|
Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 12 July 2025].