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Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Miscanthus villosus

HABIT Perennial; caespitose. Rhizomes elongated. Culms erect; 115–133 cm long; 3–5 mm diam.; 3–4 -noded. Culm-nodes pubescent. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs setose. Ligule a ciliolate membrane; 2–4 mm long; obtuse. Leaf-blade base tapering to the midrib. Leaf-blades 10–45 cm long; 2–7 mm wide. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle with branches tipped by a raceme.

Panicle spiciform; linear; 19–23 cm long; 1–7 cm wide. Primary panicle branches appressed; 3–6 cm long. Panicle axis villous.

Racemes bearing few fertile spikelets; 2–5 fertile spikelets on each. Rhachis tough.

Spikelets in pairs. Fertile spikelets pedicelled; 2 in the cluster. Pedicels filiform; unequal.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 5 mm long; falling entire. Spikelet callus bearded; base truncate. Spikelet callus hairs 3–4 mm long; 0.6–0.8 length of spikelet.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume elliptic; 4.8 mm long; 0.9 length of spikelet; chartaceous; 2-keeled; 4–5 -veined. Lower glume lateral veins obscure. Lower glume surface flat; scabrous; pilose. Lower glume margins ciliate. Lower glume apex emarginate, or truncate. Upper glume elliptic; 5 mm long; 1 length of spikelet; chartaceous; 1-keeled. Upper glume margins ciliate. Upper glume apex acuminate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 5 mm long; hyaline; 3 -veined; ciliate on margins; fringed above; acute. Fertile lemma lanceolate; 4 mm long; hyaline; without keel. Lemma apex awned; 1 -awned. Principal lemma awn straight; 5–6 mm long overall. Palea 3 mm long; 0.6 length of lemma.

FRUIT Caryopsis with adherent pericarp; obovoid; dark brown.

DISTRIBUTION Asia-temperate: China.

NOTES Andropogoneae. Liu & Peng 2011.

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