Classification
 Nomenclature
Scientific Name:
Urochloa mutica (Forssk.) T.Q.Nguyen (1966)
Synonymy:
  • Brachiaria mutica (Forssk.) Stapf (1919)
 Description

Velvety-leaved clumps to 180 cm, from short, stout rhizome, stoloniferous, sometimes rooting below; branching extravaginal. Leaf-sheath light yellow-green to light brown, papery, rounded, to somewhat keeled above, densely pilose, hairs soft, tubercle-based. Ligule c. 1 mm, densely ciliate. Leaf-blade c. 20 cm × 5–15 mm, linear-lanceolate, rounded at base, papery, flat, with numerous tubercle-based hairs, ribs numerous, fine, midrib thicker; margins somewhat thickened with close-set, long, prickle-teeth, tapered above to fine acuminate tip. Culm 2–5 mm diam., simple, or narrowly branched, nodes densely villous, internodes glabrous. Panicle of up to 12 racemes on a rachis up to 16 cm. Racemes to 7 cm, of numerous paired spikelets secund on flattened rachis; rachis with scabrid margins and a few, long, bulbous-based hairs; pedicels with a few long hairs. Spikelets 3–3.5 mm, glabrous. Glumes dissimilar; lower c. 1.5 mm, 1-nerved, ± triangular, upper ≈ spikelet, 5-nerved, elliptic. Lower floret ♂: lemma ≈ upper glume and similar in texture, 5-nerved; palea ≈ lemma; anthers c. 1.2 mm. Upper floret ☿: lemma c. 2.5 mm, 5-nerved, subcoriaceous, very finely papillose; palea c. 2 mm, of similar texture to lemma; anthers c. 1.5 mm; caryopsis c. 1.8 × 1.2 mm.

[From: Edgar and Connor (2000) Flora of New Zealand. Volume 5 (second printing).]

 Biostatus
Exotic
 Bibliography
Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.