Panicum konaense

HABIT Annual; caespitose. Culms 10–60 cm long. Culm-internodes distally glabrous, or pilose; with tubercle-based hairs. Culm-nodes bearded. Lateral branches lacking. Leaf-sheaths puberulous, or pilose; with tubercle-based hairs. Ligule a ciliate membrane; 0.8–1.6 mm long. Leaf-blades 5–18 cm long; 2–5 mm wide. Leaf-blade surface glabrous, or puberulous, or pilose; hairy on both sides; with tubercle-based hairs. Leaf-blade margins ciliate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 4–16 cm long. Primary panicle branches ascending. Panicle axis scabrous; pilose. Panicle branches scabrous; glabrous, or pilose.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; acuminate; 1.5–3.9 mm long; falling entire.

GLUMES Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 1 length of spikelet; membranous; without keels; 3–5 -veined. Lower glume surface pilose; hairy generally, or above. Lower glume hairs 1–3 mm long. Lower glume apex acuminate. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume surface glabrous (or a few hairs). Upper glume apex acuminate.

FLORETS Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 5–7 -veined; acute. Palea of lower sterile floret 0.25–0.33 length of lemma. Fertile lemma elliptic; dorsally compressed; 1.2–1.4 mm long; indurate; black; shiny; without keel. Lemma margins involute. Lemma apex acute. Palea involute; indurate.

FLOWER Anthers 3; 0.5–0.8 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Pacific: north-central.

NOTES Paniceae. Wagner 1993.

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