Eulalia trispicata

HABIT Perennial; caespitose; clumped densely. Butt sheaths glabrous. Culms erect; 30–120 cm long. Ligule a ciliate membrane. Leaf-blades 10–30 cm long; 2–5 mm wide. Leaf-blade surface glabrous.

INFLORESCENCE Inflorescence composed of racemes. Peduncle glabrous, or pubescent above.

Racemes 2–16; digitate; 5–15 cm long. Rhachis fragile at the nodes; villous on margins. Rhachis hairs white. Rhachis internodes linear; 0.25 length of fertile spikelet. Rhachis internode tip transverse.

Spikelets in pairs. Fertile spikelets sessile and pedicelled; 2 in the cluster. Pedicels linear; angular; villous.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3.5–4 mm long; falling entire; deciduous from the base, or with accessory branch structures. Spikelet callus base obtuse; attached transversely.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; 1 length of spikelet; coriaceous; much thinner above; dark brown; 2-keeled; keeled above. Lower glume surface flat; pilose. Lower glume hairs white. Lower glume apex acute. Upper glume oblong; 1 length of spikelet; 1 -veined. Upper glume lateral veins absent. Upper glume surface pilose. Upper glume muticous.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret 1 length of spikelet; hyaline; 0 -veined; without midvein; without lateral veins; ciliate on margins. Fertile lemma hyaline; without keel. Lemma apex lobed; 2 -fid; incised 0.5 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 7–15 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.

FLOWER Anthers 3.

DISTRIBUTION Asia-temperate: China. Asia-tropical: India, Indo-China, Malesia, and Papuasia. Australasia: Australia.

NOTES Andropogoneae. WDC.

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