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.

Anthaenantia villosa

HABIT Perennial; caespitose. Rhizomes short; scaly. Culms 70–110 cm long. Ligule a ciliolate membrane. Leaf-blades ascending, or spreading; tapering towards tip; 5–30 cm long; 5–10 mm wide. Leaf-blade margins scaberulous; tuberculate-ciliate; hairy at base. Leaf-blade apex abruptly acute, or acute.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 8–16 cm long; 1–2 cm wide. Primary panicle branches appressed.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 3–4 mm long; falling entire.

GLUMES Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume obovate; 3–4 mm long; 1 length of spikelet; membranous; mid-green; without keels; 5 -veined. Upper glume surface villous. Upper glume hairs white. Upper glume apex obtuse.

FLORETS Basal sterile florets male, or barren; with palea. Lemma of lower sterile floret obovate; 3–4 mm long; 1 length of spikelet; membranous; 5 -veined; villous; bearing white hairs; bearing hairs 0.3–0.5 mm long; obtuse. Fertile lemma ovate; 3–4 mm long; cartilaginous; of similar consistency above; much thinner on margins; dark brown; without keel; 3 -veined. Lemma margins flat. Lemma apex acute. Palea gaping; 1 length of lemma; cartilaginous; 2 -veined.

FLOWER Anthers 3; 2.6–2.8 mm long.

FRUIT Caryopsis with adherent pericarp; orbicular; isodiametric; exposed between gaping lemma and palea at maturity; 1.2–1.4 mm long. Embryo 0.5 length of caryopsis.

DISTRIBUTION North America: southeast USA.

NOTES Paniceae. Gould.

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