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(Last Modified On 10/16/2012)
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(Last Modified On 10/16/2012)
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Species
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DIGITARIA hirsuta
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Description
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Annual; culms erect, about 50 cm. high, glabrous; sheaths all longer than the internodes, rounded or keeled toward the summit, densely papillose-pilose; ligule truncate, about 1 mm. long; blades 6-20 cm. long, 3-4 mm. wide, flat, acuminate, densely hirsute; racemes 3-5, 10.5-13 cm. long, racemose on a short pilose axis, densely villous in the axils, narrowly ascending, somewhat curved, the rachis 0.4 mm. wide, wingless, sparsely pilose with long pale hairs, the angles very scabrous; spikelets in groups of 2 to 5, the scabrous pedicels of varying length, one or two very short, the rest successively longer, some as much as 4 mm. long; spikelets 1.8 mm. long; first glume obsolete; second glume narrow, two-thirds to three-fourths as long as the fruit; sterile lemma slightly longer than the fruit, elliptic, acute, 5-nerved, the nerves rather prominent, pubescent on the margins, otherwise glabrous or nearly so; fruit 1.7 mm. long, narrowly elliptic, acutish, chestnut- brown.
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Distribution
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Open sandy ground and brushy slopes, Panama.
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Specimen
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CANAL ZONE: Balboa, Standley 26444. This specimen has shorter racemes than the type, 2-5 cm. long. PANAMA: Point Chame, sandy field, Sept. 18, 1911, Hitchcock 8I59 (U. S. Nat. Herb., TYPE).
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