Taxon Report
Chorizanthe leptotheca Goodm.Peninsular spineflower |
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Taxon Summary
Chorizanthe leptotheca, commonly known as Peninsular spineflower, is a annual herb in the Polygonaceae that is found in California and elsewhere. It occurs within Chaparral, Coastal scrub, and Lower montane coniferous forest, growing at elevations from 300 to 1900 meters. Chorizanthe leptotheca is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.Classification
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Scientific Name: |
Chorizanthe leptotheca Goodm. |
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Common Name: |
Peninsular spineflower |
| Family: | Polygonaceae |
| Element Code: | PDPGN040D0 |
| USDA Plants Symbol: | CHLE6 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: May-Aug | May-Aug |
| Elevation: | 300-1900 (985-6235) |
| General Habitats: | Chaparral, Coastal scrub, Lower montane coniferous forest |
| Microhabitat: | Granitic |
| Microhabitat Details: | alluvial fan |
Conservation Status
| CA Rare Plant Rank: | 4.2 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 0 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Kern (KRN), Los Angeles (LAX), Riverside (RIV), San Bernardino (SBD), San Diego (SDG) | |
| Quads: Name (Quad Code) | |
| Aguanga (3311647), Alberhill (3311764), Alpine (3211677), Anza (3311656), Barrett Lake (3211666), Beauty Mountain (3311646), Blackburn Canyon (3311667), Boucher Hill (3311638), Butterfly Peak (3311655), Cahuilla Mtn. (3311657), Cameron Corners (3211664), Campo (3211654), Corona South (3311775), Cuyamaca Peak (3211685), Descanso (3211675), Dulzura (3211667), El Cajon Mtn. (3211687), Hayfield (3311566), Hemet (3311668), Idyllwild (3311666), La Quinta (3311663), Lake Elsinore (3311763), Lake Fulmor (3311677), Lake Mathews (3311774), Live Oak Springs (3211663), Mesa Grande (3311627), Monument Peak (3211684), Morena Reservoir (3211665), Mount Laguna (3211674), Mt. Baldy (3411726), Otay Mountain (3211657), Palomar Observatory (3311637), Pechanga (3311741), Potrero (3211655), Ramona (3311617), Ranchita (3311625), Rancho Mirage (3311664), Redlands (3411712), Rodriquez Mtn. (3311628), Romoland (3311762), Sage (3311658), San Bernardino South (3411713), San Clemente (3311745), San Jacinto (3311678), San Jacinto Peak (3311676), San Pasqual (3311618), San Vicente Reservoir (3211688), Santa Ysabel (3311616), Steele Peak (3311773), Sunnymead (3311782), Tecate (3211656), Tehachapi North (3511824), Tule Springs (3211686), Vail Lake (3311648), Viejas Mountain (3211676), Warner Springs (3311636), Winchester (3311761) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Notes
| Much habitat already lost to development; also threatened by non-native grasses. Closely related to and difficult to distinguish from C. staticoides. See Annals of the Missouri Botanical Garden 21:61 (1934) for original description, and Phytologia 66(2):159-160 (1989) for taxonomic treatment. |
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Threats: |
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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 9 March 2025].