American wild sensitive-plant, more...
[Cassia hebecarpa Fernald, more]
Etymology: Senna: from the Arabic name Sana
Plants: erect, perennial, 3'-6' tall forb, mostly smooth above
Leaves: evenly once pinnately-divided into 6-10 pairs, stalks usually with a large club- to ovate-shaped gland
Flowers: yellow, 5-parted, 3/4"-1 1/4" wide, stalked, petals slightly unequal, buds nodding; inflorescence several, many-flowered clusters (panicle) at the end of the stems; blooms July-Aug.
Fruits: pod not flat or readily opening when mature, space around the seeds nearly square; seeds flat, nearly as long as wide
Habitat: full to partial sun; moderate moisture to moist; open woods, roadsides, streambanks; in sandy, loamy soil
Conservation Status: Native
Floristic Rating: Coefficient of Conservatism = 7, Wetland Indicator = FACW Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times USDA Plants Database: Federal Distribution and detailed information including photos USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Virginia Tech Dept. of Forestry, College of Natural Resources: detailed description and photographs