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.

Saccharum kanashiroi

HABIT Perennial; culms solitary. Rhizomes short. Culms erect; 70–100 cm long; 5–10 mm diam.; 7–9 -noded. Culm-internodes terete; solid; 15–17 cm long; smooth; distally glabrous. Leaf-sheaths longer than adjacent culm internode; wider than blade at the collar; glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule a ciliolate membrane; 1–1.5 mm long. Leaf-blades tapering towards tip and sheath; 70–100 cm long; 6–10(–15) mm wide; herbaceous; stiff. Leaf-blade midrib conspicuous. Leaf-blade surface smooth; glabrous; hairless except near base. Leaf-blade margins scabrous. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence a panicle with branches tipped by a raceme. Peduncle scaberulous above.

Panicle open; lanceolate, or elliptic; dense; 25–35 cm long; 6–15 cm wide. Primary panicle branches 1–4 cm long.

Racemes 3–10 cm long. Rhachis fragile at the nodes; subterete; hirsute on surface. Rhachis hairs 3–6 mm long. Rhachis internodes linear; 4–5 mm long.

Spikelets in pairs. Fertile spikelets sessile and pedicelled; 2 in the cluster; subequal. Pedicels linear; 2–3 mm long; villous.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4–4.5 mm long; falling entire; deciduous from the base, or with accessory branch structures. Spikelet callus bearded; base truncate. Spikelet callus hairs 3–6 mm long; 1–1.5 length of spikelet.

GLUMES Glumes similar; firmer than fertile lemma. Lower glume lanceolate; 1 length of spikelet; chartaceous; much thinner above; 2-keeled; 3–4 -veined. Lower glume surface flat; hirsute. Lower glume hairs 4–7 mm long. Lower glume apex acute. Upper glume lanceolate; 1 length of spikelet; coriaceous; much thinner above; without keels; 1(–3) -veined. Upper glume lateral veins absent, or obscure. Upper glume surface glabrous (sessile), or hirsute (pedicelled). Upper glume apex acuminate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 3 mm long; hyaline; 3 -veined; acute. Fertile lemma lanceolate; 2.2–2.5 mm long; hyaline; 1 -veined. Lemma apex awned; 1 -awned. Principal lemma awn straight; 3–5 mm long overall. Palea absent or minute.

DISTRIBUTION Asia-temperate: eastern Asia.

NOTES Andropogoneae. FL JAPAN 1999.

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