GrassBase - The Online World Grass Flora


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

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

Sasamorpha sinica

HABIT Perennial. Rhizomes elongated; leptomorph. Culms erect; 150 cm long; 4 mm diam.; woody. Culm-internodes terete; solid; distally mealy. Lateral branches suffrutescent. Culm-sheaths 6–10 cm long; purple; pubescent; hairy on margins; without auricles; glabrous on shoulders. Culm-sheath blade lanceolate, or triangular. Leaves 2(–3) per branch. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule an eciliate membrane; 0.5–2 mm long; truncate. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate, or oblong; 10–20 cm long; 13–20 mm wide. Leaf-blade venation with 12–16 secondary veins; with distinct cross veins. Leaf-blade surface glabrous, or pilose; hairy abaxially.

INFLORESCENCE Inflorescence a panicle; comprising 2–8(–10) fertile spikelets; without bracts, or bracteate at pedicel base.

Panicle open; linear, or oblong, or ovate; 5–11 cm long; bearing few spikelets. Primary panicle branches indistinct the panicle almost racemose, or simple. Panicle axis puberulous. Panicle branches puberulous.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 3–17 mm long.

FERTILE SPIKELETS Spikelets comprising 4–6 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 8–25 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 2–4 mm long; pubescent.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 3–6 mm long; 0.3–0.6 length of upper glume; scarious; without keels; 7–9 -veined. Lower glume margins ciliate. Lower glume apex cuspidate. Upper glume ovate; scarious; without keels. Upper glume apex acute.

FLORETS Fertile lemma ovate; 9–19 mm long; chartaceous; purple; without keel; 11 -veined. Lemma surface puberulous. Lemma margins ciliate. Lemma apex cuspidate. Palea keels ciliolate. Palea surface puberulous. Palea apex dentate; 2 -fid. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3; lanceolate, or ovate; 2–2.5 mm long; veined; ciliate. Anthers 6; 4–5 mm long; yellow. Stigmas 3.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Fl China 2006.

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