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Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Poa setulosa
HABIT Perennial; caespitose. Butt sheaths herbaceous. Culms erect; 16–33 cm long. Culm-internodes terete; smooth. Lateral branches lacking. Leaves mostly basal. Ligule an eciliate membrane; 2–3 mm long; lacerate. Leaf-blades flat, or conduplicate; 7–11 cm long; 1.5–2 mm wide. Leaf-blade surface scabrous; rough on both sides. Leaf-blade margins scabrous. Leaf-blade apex acute.
INFLORESCENCE Inflorescence a panicle.
Panicle open; lanceolate; equilateral, or nodding; 9–12 cm long. Primary panicle branches ascending; 1–2 -nate. Panicle branches scabrous.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 4–5 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 4–4.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus woolly.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2.5–4 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume apex acuminate. Upper glume lanceolate; 2.5–4 mm long; 0.75–0.9 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acuminate.
FLORETS Fertile lemma ovate; oblong in profile; 2.7–3 mm long; membranous; keeled; 5 -veined. Lemma midvein ciliate. Lemma margins ciliate. Lemma apex obtuse. Palea 0.9 length of lemma. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; membranous. Anthers 3; 0.6–0.75 mm long.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform.
DISTRIBUTION Asia-tropical: India.
NOTES Poeae. Fl Pak.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.