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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Indopoa paupercula
HABIT Annual; caespitose. Culms geniculately ascending; 3–16 cm long; 1–2 -noded. Ligule an eciliate membrane; obtuse. Leaf-blades involute; 1–12 cm long; 1–2 mm wide.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 1; single; flexuous; unilateral; 0.5–8 cm long; bearing few fertile spikelets; bearing 2–10 fertile spikelets on each. Rhachis angular. Spikelet packing broadside to rhachis; lax.
Spikelets ascending; solitary. Fertile spikelets sessile.
FERTILE SPIKELETS Spikelets comprising 4–6 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 6–12 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pilose.
GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 2.5 mm long; 0.5 length of upper glume; hyaline; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute; mucronate. Upper glume lanceolate; 4.5–5 mm long; 0.7–0.8 length of adjacent fertile lemma; hyaline; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute; mucronate.
FLORETS Fertile lemma oblong; 6 mm long; membranous; keeled; the keel enlarged into a pocket around grain; 3 -veined. Lemma apex lobed; 2 -fid; with lanceolate lobes; incised 0.25 of lemma length; awned; 3 -awned. Principal lemma awn from a sinus; geniculate; 14 mm long overall; with twisted column. Lateral lemma awns arising on apex of lobes; 4 mm long; shorter than principal. Palea elliptic; 0.7 length of lemma; 2 -veined. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; cuneate; fleshy. Anthers 3; subglobose; 0.25–0.3 mm long; retained within floret. Stigmas 2.
FRUIT Caryopsis with adherent pericarp; linear; isodiametric; biconvex; 3–4.5 mm long; glabrous; apex fleshy. Embryo 0.2 length of caryopsis. Hilum punctiform.
DISTRIBUTION Asia-tropical: India.
NOTES Eragrostideae. Bor.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
