Senna pendula |
Senna lindheimeriana |
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climbing cassia, valamuerto |
showy senna, velvet leaf senna, velvet leaf wild sensitive plant |
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Habit | Herbs, perennial, to 1.5 m. Leaves slightly sclerophyllous, 6–16 cm, densely hairy; stipules caducous, 1–3 mm wide; extrafloral nectaries between all leaflet pairs, stipitate; leaflet pairs 4–8, blades oblong-elliptic or ovate- to obovate-elliptic, 20–50 × 8–20 mm. | |
Racemes | usually 5–25-flowered; bracts caducous. |
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Pedicels | 6–22 mm. |
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Flowers | monosymmetric; calyx usually pale green or pinkish, rarely yellow; corolla yellow, longest petal 10.5–16 mm; androecium heterantherous, stamens 7, staminodes 3; anthers 3–5.1 mm, dehiscing by 1 apical pore, apical appendage 0; gynoecium linear, ovules 20–28; ovary densely hairy; style incurved. |
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Legumes | erect, flat, straight, 30–65 × 5–9 mm, shallowly corrugated over seeds, dehiscent. |
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Seeds | brown, obovoid or oblong-obovoid. |
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Senna | pendula is often confused with close relative S. bicapsularis, which is absent from North America and has shorter pedicels, only to 5 mm (H. |
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s | . Irwin and R. |
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c | . |
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Barneby | 1982; B. |
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Marazzi | et al. |
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2006b | ). |
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2n | = 28. |
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Senna pendula |
Senna lindheimeriana |
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Phenology | Flowering spring–fall. | |
Habitat | Stony hillsides, desert washes, Larrea scrub, mesquite grasslands, chaparral. | |
Elevation | 0–1900(–2100) m. (0–6200(–6900) ft.) | |
Distribution |
Mexico; Central America; South America; West Indies [Introduced, Florida; introduced also in Africa (South Africa), Pacific Islands, Australia]
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AZ; NM; TX; Mexico (Chihuahua, Coahuila, Nuevo León, Sonora, Tamaulipas)
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Discussion | Varieties 18–20 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Caesalpinioideae (excluding Mimosoid clade) > Senna | Fabaceae > subfam. Caesalpinioideae (excluding Mimosoid clade) > Senna |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Cassia pendula, Chamaefistula pendula | Cassia lindheimeriana, Earleocassia lindeheimeriana |
Name authority | (Humboldt & Bonpland ex Willdenow) H. S. Irwin & Barneby: Mem. New York Bot. Gard. 35: 378. (1982) | (Scheele) H. S. Irwin & Barneby: Phytologia 44: 500. (1979) |
Web links |