New! - Search other data sources for Poa halmaturina

Help - Wrong Description?

Kew Data Sources

Kew's Herbarium Catalogue
ePIC - Electronic Plant Information Centre

External Data Sources

Note - this takes you off of our website
Use your browser's back button to return to this page

GrassBase - The Online World Grass Flora

Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Poa halmaturina

HABIT Perennial; caespitose; clumped densely. Rhizomes elongated; scaly. Butt sheaths herbaceous; pallid, or purple. Basal innovations extravaginal. Culms erect; 5–10 cm long. Culm-internodes terete; smooth. Lateral branches lacking. Leaf-sheaths smooth; glabrous on surface. Ligule a ciliolate membrane; 0.5 mm long; truncate. Leaf-blades aciculate; involute; 2–8 cm long; 0.7 mm wide; stiff. Leaf-blade surface scabrous; rough adaxially; glabrous. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence a panicle. Peduncle smooth.

Panicle contracted; linear; 1.5–3 cm long; bearing few spikelets. Primary panicle branches 1–3 in number; 1 -nate. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4–5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus woolly.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume oblong; 3 mm long; 0.9 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein scabrous. Lower glume apex acute. Upper glume oblong; 3 mm long; 0.8–1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume apex acute.

FLORETS Fertile lemma oblong; elliptic in profile; 3–3.5 mm long; membranous; keeled; 5 -veined. Lemma midvein ciliate. Lemma surface scabrous; rough between veins; pubescent; hairy below; hairy on veins. Lemma margins ciliate. Lemma apex acute. Palea 0.9 length of lemma. Palea keels ciliolate; adorned above. Palea surface pubescent; hairy on back. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Australasia: Australia.

NOTES Poeae. Vickery.

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