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Pakistan | Family List | Poaceae | Digitaria

Digitaria stricta Roth ex Roem. & Schult., Syst. Veg. 2:474. 1817. non Panicum strictum R. Br. 1810; Roth, Nov. Pl. Sp. 58. 1821; Sultan & Stewart, Grasses W. Pak. 1:9. 1958; Bor, Grasses Burma Ceyl. Ind. Pak. 305. 1960; Bor in Rech. f., Fl. Iran. 70:488. 1970.

  • Agrostis pilosa Retz.
  • Digitaria concinna Schrad. ex Steud.
  • Digitaria denudata Link
  • Digitaria puberula Link
  • Digitaria royleana (Nees ex Hook. f.) Prain
  • Digitaria stricta var. denudata (Link) Henr.
  • Digitaria stricta var. glabrescens Bor
  • Panicum denudatum (Link) Kunth
  • Paspalum concinnum (Schrad. ex Steud.) Steud.
  • Paspalum pseudosetaria Steud.
  • Paspalum royleanum Nees ex Hook. E
  • Setaria stricta (Roth ex Roem. & Schulz.) Kunth

    Tufted annual; sulms up to 40 cm high (110 cm in exceptional specimens), erect. Leaf-blades 4-15(30) cm long, 26 mm wide, the blades and sheaths ± hirsute with tubercle-based hairs. Inflorescence composed of 3-6(17) racemes, these subdigitate or arranged along an axis 1-3(5) cm long; racemes 4-14 cm long, the spikelets ternate (at least in the middle of the raceme) on a narrowly winged rhachis with triquetrous midrib; pedicels narrowly winged, scabrid, slightly dilated at the tip with a crown of stiff hairs exceeding the tip and sometimes up to 1 mm long. Spikelets obtuse, oblong, elliptic or narrowly obovate, 1.1-1.4(-1.6) mm long; lower glume 0; upper glume 0 or very short to about one-third the length of the spikelet and 3-nerved, covered all over with short clavate hairs or rarely glabrous; lower lemma as long as the spikelet, (3-)5-nerved, all interspaces with a sparse to very dense covering of clavate hairs; fruit ellipsoid, apiculate, chestnut brown to black (very rarely pallid) at maturity.

    Fl. & Fr. Per.: August-October.

    Type: India, Heyne (B).

    Distribution: Pakistan (Punjab, N.W.F.P. & Kashmir); Nepal, India, Burma and Sri Lanka; a single record for Oman.

    This is a relatively uniform species except for the upper glume. This may be absent (var. denudate) or, when present, varying from a minute glabrous scale to clavate-hairy and up to (sometimes exceeding) one-third the length of the spikelet. The indumentum of the spikelet varies from dense to sparse (var. glabrescens), but the spikelet is very rarely completely glabrous.


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