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Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Panicum dewinteri
HABIT Perennial; caespitose. Culms erect, or geniculately ascending; 50–100 cm long; wiry; without nodal roots, or rooting from lower nodes. Lateral branches suffrutescent. Ligule a ciliate membrane. Leaf-blades deciduous at the ligule; 2–5 cm long; 1–6 mm wide.
INFLORESCENCE Inflorescence a panicle.
Panicle open; ovate; 7–15 cm long.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; acute; 3.5–4 mm long; falling entire.
GLUMES Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.66 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 5–7 -veined. 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; acuminate. Palea of lower sterile floret 0.33 length of lemma. Fertile lemma elliptic; dorsally compressed; 3–3.5 mm long; indurate; light brown; shiny; without keel. Lemma margins involute. Lemma apex apiculate. Palea involute; indurate.
FLOWER Anthers 3.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION Africa: south.
NOTES Paniceae. Gr S Afr 1993.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.