Chamaecrista serpens var. wrightii

(A. Gray) H. S. Irwin & Barneby

Mem. New York Bot. Gard. 35: 714. 1982.

Common names: Wright’s sensitive pea
Basionym: Cassia wrightii A. Gray Smithsonian Contr. Knowl. 5(6): 50. 1853
Synonyms: C. palmeri S. Watson Chamaecrista alamosensis Britton & Rose C. chiapensis Britton & Rose C. mazatlensis Rose C. mexiae Britton C. ortegae Britton C. palmeri (S. Watson) Greene C. wrightii (A. Gray) Wooton & Standley
Treatment appears in FNA Volume 11.

Leaves 2–3.5(–4) cm; leaflets (6 or)7–10(–12) pairs. Flowers: petals to 13–19(–20) mm; anthers to 2.5–9.5 mm. Legumes 14–40(–45) × 2.5–3.5(–4) mm.


Phenology: Flowering late spring–early winter.
Habitat: Dry hillsides and grassy places, coastal plains, desert habitats, pine-oak forests.
Elevation: 0–2100 m.

Distribution

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Ariz., N.Mex., Mexico (Chiapas, Chihuahua, Durango, Guerrero, Jalisco, Sonora).

Discussion

Variety wrightii is known in the flora area from Santa Cruz County in Arizona, and Grant and Luna counties in New Mexico.

Selected References

None.

Lower Taxa

None.
Brigitte Marazzi +
- A. Gray H. S. Irwin & Barneby +
Cassia wrightii +
Wright’s sensitive pea +
Ariz. +, N.Mex. +, Mexico - Chiapas +, Chihuahua +, Durango +, Guerrero +, Jalisco +  and Sonora. +
0–2100 m. +
Dry hillsides and grassy places, coastal plains, desert habitats, pine-oak forests. +
Flowering late spring–early winter. +
Mem. New York Bot. Gard. +
C. palmeri +, Chamaecrista alamosensis +, C. chiapensis +, C. mazatlensis +, C. mexiae +, C. ortegae +  and C. wrightii +
Chamaecrista serpens var. wrightii +
Chamaecrista serpens +
variety +