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.

Panicum subtilissimum

HABIT Annual; caespitose. Culms erect; slender; 30–40 cm long. Ligule an eciliate membrane. Leaf-blades filiform, or linear; convolute; 5–20 cm long; 1–2 mm wide. Leaf-blade apex abruptly acute.

INFLORESCENCE Inflorescence a panicle.

Panicle open; oblong, or ovate; 6–10 cm long. Primary panicle branches spreading, or reflexed; simple.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets orbicular; dorsally compressed; 1 mm long; breaking up at maturity.

GLUMES Glumes similar; thinner than fertile lemma. Lower glume ovate; 0.66 length of spikelet; membranous; without keels; 1(–3) -veined. Lower glume surface glabrous. Upper glume ovate; 1 length of spikelet; membranous; yellow; without keels; 3–5 -veined. Upper glume surface glabrous.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret ovate; 1 length of spikelet; membranous; 5 -veined. Fertile lemma orbicular; dorsally compressed; 1 mm long; chartaceous; pallid; without keel. Lemma surface tuberculate (verruculose). Lemma margins involute. Palea involute; chartaceous. Palea surface tuberculate (verruculose).

FLOWER Anthers 3.

DISTRIBUTION Africa: west tropical.

NOTES Paniceae. Renvoize 2000.

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