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Chamaecrista fasciculata   (Michx. ) Greene  var. fasciculata 
[=Cassia chamaecrista L.]
Konza Prairie, Riley County, Kansas
Height: 4-48 inches
Family: Fabaceae - Bean Family
Flowering Period:   July, August, September
Stems: Erect or ascending, usually branched, slender, short appressed-hairy.
Leaves: Alternate, stalked, 1-4 inches long, even-pinnately compound; leaflets 12-30, linear-oblong, 1/2 to 3/4 inch long, less than 1/5 inch wide, glabrous; margins fringed with minute hairs; tips blunt or end in short, abrupt points; stipules persistent, to 2/5 inches long, tapering to points.
Inflorescences: Racemes, 2-7-flowered, in leaf axils
Flowers: Showy; sepals 5, lanceolate; petals 5, unequal in size, bright yellow; bases of upper 4 petals with reddish spot; lower petal larger, to 3/4 inch long, curving, without red spot; stamens 10, unequal, yellow or purple.
Fruits: Pods, linear-oblong, flat, 1 to 2.75 inches long, less than .25 inch wide, brown; seeds 4-20, somewhat rectangular, flattened, small, dark.
Habitat: Disturbed areas, prairies, open woods, waste ground and roadsides, in sandy or rocky soils.
Distribution: Throughout except northwest corner of Kansas.
Toxicity: Showy partridge pea can be mildly poisonous to livestock when consumed in large quantities, but deer seem unaffected.
Forage Value: Upland game birds and songbirds eat the seeds, and deer and cattle consume the foliage.
Comments: The leaves are touch-sensitive. They will fold when disturbed.

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