. Common plants of longleaf pine-bluestem range. Plant ecology; Grasses; Forage plants. ARROW CROTALARIA Crotalaria sagittalis L. Arrow crotalaria is an annual or a short-lived perennial seldom more than 15 inches tall. It is most common on dry sandy or gravelly soils, espe- cially on disturbed sites. The lower leaves are ellip- tical and about 1 inch long, whereas upper leaves are lanceolate and up to 3 inches long. The arrow- head-shaped stipules give stems a winged appear- ance. The flowers, which usually appear from June through September, are small and yellow, resemb- ling those of garden
. Common plants of longleaf pine-bluestem range. Plant ecology; Grasses; Forage plants. ARROW CROTALARIA Crotalaria sagittalis L. Arrow crotalaria is an annual or a short-lived perennial seldom more than 15 inches tall. It is most common on dry sandy or gravelly soils, espe- cially on disturbed sites. The lower leaves are ellip- tical and about 1 inch long, whereas upper leaves are lanceolate and up to 3 inches long. The arrow- head-shaped stipules give stems a winged appear- ance. The flowers, which usually appear from June through September, are small and yellow, resemb- ling those of garden peas. The inflated pods are about 1 inch long and half as broad. Several other crotalarias resemble arrow cro- talaria in flower and pod characteristics but only one, Crotalaria parshii DC, has the same long narrow leaves. The principal difference between the two is that stems and sepals of arrow crotalaria are conspicuously hairy, while those of C. purshii have short and obscure hairs. Some taxonomists consider C. purshii a regional variety of arrow cro- talaria. The crotalarias are often called rattleboxes, since the loose seeds rattle in the mature pod. Arrow crotalaria is poisonous to livestock. Be- cause plants are usually scarce they rarely consti- tute a threat to cattle. Range: From Texas to Florida north to South Dakota and Massachusetts. Annual or weak perennial. Stems 10-40 cm. tall, simple to bushy branched, loosely villous to hirsute; basal leaves simple, small, oval; upper leaves linear-oblong to lanceolate, the larger 3-7 cm. long, 8-15 mm. wide; stipules inversely sagittate, decurrent; flowers papilionaceous, two to four on terminal or axillary peduncles 1-4 cm. long; calyx 10-12 mm. long, five-cleft, loosely villous or hirsute; corolla 8-10 mm. long, yellow; legume cm. long, 1 cm. thick, strongly inflated, dull brown; seeds mm. broad, obliquely Please note that these images are extracted from scanned page images that may have been digita
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Keywords: ., boo, bookcentury1900, booksubjectforageplants, booksubjectgrasses
