Taxon Report
Chorizanthe parryi S. Watson var. parryiParry's spineflower |
 © 2012 Keir Morse |
Taxon Summary
Chorizanthe parryi var. parryi, commonly known as Parry's spineflower, is a annual herb in the Polygonaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Coastal scrub, and Valley and foothill grassland, growing at elevations from 275 to 1220 meters. Chorizanthe parryi var. parryi is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.Classification
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Scientific Name: |
Chorizanthe parryi S. Watson var. parryi |
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Common Name: |
Parry's spineflower |
| Family: | Polygonaceae |
| Element Code: | PDPGN040J2 |
| USDA Plants Symbol: | CHPAP2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Apr-Jun | Apr-Jun |
| Elevation: | 275-1220 (900-4005) |
| General Habitats: | Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland |
| Microhabitat: | Openings, Rocky (sometimes), Sandy (sometimes) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G3T2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_CalBG/RSABG; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 150 |
| Element Occurrence Ranks: | |
| Excellent (A) | 8 |
| Good (B) | 14 |
| Fair (C) | 5 |
| Poor (D) | 3 |
| None (X) | 13 |
| Unknown (U) | 107 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Los Angeles (LAX), Riverside (RIV), San Bernardino (SBD) | |
| Quads: Name (Quad Code) | |
| Alberhill (3311764), Azusa (3411728), Bachelor Mtn. (3311751), Beaumont (3311688), Blackburn Canyon (3311667), Cabazon (3311687), Cahuilla Mtn. (3311657), Cucamonga Peak (3411725), Devore (3411724), El Casco (3311781), Fontana (3411714), Forest Falls (3411618), Glendora (3411727), Green Valley (3411854), Guasti (3411715), Harrison Mtn. (3411722), Hemet (3311668), Lake Elsinore (3311763), Lake Fulmor (3311677), Lake Mathews (3311774), Lakeview (3311771), Lancaster East (3411861), Lancaster West (3411862), Mt. Baldy (3411726), Mt. Wilson (3411821), Murrieta (3311752), Palm Springs (3311675), Pasadena (3411822), Point Dume (3411817), Redlands (3411712), Riverside East (3311783), Romoland (3311762), Sage (3311658), San Bernardino North (3411723), San Bernardino South (3411713), San Jacinto (3311678), Steele Peak (3311773), Sunnymead (3311782), Vail Lake (3311648), Val Verde (3411846), White Water (3311686), Wildomar (3311753), Winchester (3311761), Yucaipa (3411711) | |
Threat List Data from the CNDDB
| Threat List Total: | 15 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 70 | 47 % | |
| Development | 27 | 18% |
| Non-native plant impacts | 22 | 14% |
| Other | 10 | 6% |
| Mining | 9 | 6% |
| ORV activity | 7 | 4% |
| Grazing | 7 | 4% |
| Dam/Inundation | 7 | 4% |
| Road/trail construction/maint. | 6 | 4% |
| Altered flood/tidal/hydrologic regime | 5 | 3% |
| Disking | 2 | 1% |
| Improper burning regime | 2 | 1% |
| Landfill | 2 | 1% |
| Vandalism/dumping/litter | 2 | 1% |
| Wood cutting or brush clearing | 2 | 1% |
| Over-collecting/poaching | 2 | 1% |
Selected References
| Proposed Change from CRPR 3.2, G2T2, S2.1 to CRPR 1B.1, G3T3, S3.1 (2008) |
| Proceedings of the American Academy of Arts and Sciences 12:271 (1877) |
| Phytologia 66(2):147-149 (1989) |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 3 March 2025].