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Senna wislizeni (Gray) Irwin & Barneby
Canyon senna, Shrubby senna, Dwarf senna
Synonyms: Cassia wislizeni
USDA Symbol: sewi3
USDA Native Status: Native to U.S.
Wislizenus wild sensitive-plant or shrubby senna, a deciduous shrub, is usually 4-6 ft. tall but can reach 10 ft. Short, rigid, leafy branches are lined with compound foliage arranged spirally on spurs. Large, yellow flowers crowd together in 6 in. clusters at the end of the branches. A long, flat, dark-brown pod succeeds the flowers.
This plants brilliant yellow flowers make an attractive contrast to the foliage.
Bloom InformationBloom Color: Yellow
Bloom Time: May , Jun , Jul
AZ , NM , TX Native Distribution:
W. TX to s.e. AZ & n. Mex Native Habitat:
Dry slopes; mesas USDA Native Status: L48(N)
Growing ConditionsLight Requirement: Sun
Soil Moisture: Moist
Soil Description: Well-drained, igneous soils.
Conditions Comments: A showy cassia. Brilliant yellow flowers make an attractive contract to the foliage. Dependable in poor soil and fairly drought-tolerant.
Plants of this genus
(and herbal remedies derived from them) can cause poisoning and fatal illness in humans. Sensitivity to a toxin varies with a personís age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. Toxicity can vary in a plant according to season, the plantís different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil. Conspicuous Flowers:
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Record Modified: 2009-04-23
Research By: TWC Staff