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.

Pseudosasa hindsii

HABIT Perennial. Culms 4 mm diam.; woody. Culm-internodes terete; hollow. Lateral branches dendroid. Branch complement one, or two. Leaves 1–3 per branch. Leaf-sheaths 2.5–4 cm long; glabrous on surface, or pubescent. Leaf-sheath oral hairs setose; 8 mm long. Ligule an eciliate membrane; 1 mm long; pubescent on abaxial surface; truncate. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.2–0.4 cm long. Leaf-blades lanceolate; 5–15 cm long; 7–12 mm wide. Leaf-blade venation with 4–10 secondary veins; with distinct cross veins. Leaf-blade surface glabrous. Leaf-blade margins smooth. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence composed of racemes; embraced at base by subtending leaf.

Racemes 1; single; bearing 2–5 fertile spikelets on each.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2–15 mm long; glabrous, or puberulous.

FERTILE SPIKELETS Spikelets comprising 4–11 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 23–55 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 3–5 mm long; pubescent and pilose; hairy all along but hairs longer above. Floret callus pubescent.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 8–13 mm long; chartaceous; without keels; 5–9 -veined. Lower glume margins eciliate, or ciliolate. Lower glume apex acute. Upper glume elliptic; 8–13 mm long; chartaceous; without keels; 5–9 -veined. Upper glume margins eciliate, or ciliolate. Upper glume apex acute.

FLORETS Fertile lemma lanceolate, or ovate; 10–14 mm long; chartaceous; without keel; 9–11 -veined. Lemma surface glabrous, or puberulous. Lemma margins ciliate; hairy above. Lemma apex acuminate. Palea 8–10 mm long; 2 -veined. Palea keels ciliate. Palea surface pubescent. Palea apex entire. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3; 3 mm long; veined; ciliate. Anthers 3; 4.5–6 mm long. Stigmas 3.

FRUIT Caryopsis with adherent pericarp; apex unappendaged.

DISTRIBUTION Asia-temperate: China. Australasia: New Zealand.

NOTES Arundinarieae. Keng 1996.

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