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.

Anthoxanthum novae-zelandiae

HABIT Perennial; caespitose. Culms 20–40 cm long; 3–4 -noded. Leaf-sheaths 2–10 cm long; glabrous on surface. Ligule an eciliate membrane; 0.7 mm long. Leaf-blades 2–10 cm long; 1.5–3 mm wide. Leaf-blade venation comprising 11 vascular bundles. Leaf-blade surface glabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 5–10 cm long. Primary panicle branches 1–2 -nate.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1–5 mm long; glabrous.

FERTILE SPIKELETS Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 4 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma; shiny. Lower glume obovate; 1 length of upper glume; membranous; much thinner on margins; 1-keeled; 3 -veined. Lower glume apex obtuse, or acute. Upper glume obovate; 3.5 mm long; 0.9 length of spikelet; membranous; with scarious margins; 1-keeled; 3 -veined. Upper glume apex obtuse, or acute.

FLORETS Basal sterile florets similar; barren; with palea; attached to and deciduous with the fertile. Lemma of lower sterile floret oblong; 4 mm long; 1 length of fertile lemma; chartaceous; light brown; 1-keeled; scaberulous; rough above; ciliate on margins; obtuse; mucronate. Awn of lower sterile floret dorsal; arising 0.75–0.9 way up back of lemma; straight; 1–3 mm long. Lemma of upper sterile floret oblong; 1 length of lower sterile floret; chartaceous; scabrous; ciliate on margins; obtuse; awned. Awn of upper sterile floret dorsal; arising 0.75–0.9 way up back of lemma; straight; 1–3 mm long. Fertile florets female. Fertile lemma ovate; 3 mm long; cartilaginous; without keel. Lemma surface pubescent; hairy above. Lemma margins convolute; covering most of palea. Lemma apex truncate; muticous, or mucronate. Principal lemma awn subapical; 0.3 mm long overall. Palea elliptic; without keels.

FLOWER Anthers 2 (bisexual), or 3 (male); 1.8 mm long. Stigmas pubescent. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Australasia: New Zealand.

NOTES Aveneae. Zotov 1994.

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