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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 faberi

HABIT Perennial; caespitose. Rootstock evident. Culms geniculately ascending; 45–60 cm long. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths scaberulous; glabrous on surface. Ligule an eciliate membrane; 2–3 mm long; acute. Leaf-blades 4–10 cm long; 0.7–1.2 mm wide. Leaf-blade venation with 3 secondary veins. Leaf-blade surface scabrous. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; dense; 7–11 cm long. Primary panicle branches 3–5 -nate; 2.5–5 cm long; bearing spikelets almost to the base. Panicle branches flexuous; scaberulous.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels scaberulous.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets oblanceolate, or obovate; laterally compressed; 4–5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus woolly.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2–3 mm long; 0.75 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein scabrous. Lower glume surface scabrous; rough on veins. Lower glume apex acute. Upper glume lanceolate; 3–4 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume surface scabrous; rough on veins. Upper glume apex acute.

FLORETS Fertile lemma ovate; elliptic in profile; 3–4 mm long; membranous; keeled; 5 -veined. Lemma midvein scabrous; ciliate. Lemma surface scaberulous; pubescent; hairy on veins. Lemma margins ciliate; hairy below. Lemma apex acute. Palea 1 length of lemma. Palea keels scaberulous; ciliolate; adorned above. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3; 0.8 mm long.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Asia-temperate: China.

NOTES Poeae. Kiangsu Gr 1994.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.