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 reitzii

HABIT Perennial; caespitose. Culms robust; 70–130 cm long. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.5–1 mm long. Leaf-blades 25–55 cm long; 5–9 mm wide.

INFLORESCENCE Dioecious. Inflorescence a panicle.

Panicle open; elliptic; 10–22 cm long. Primary panicle branches bearing spikelets almost to the base. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus woolly.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3–3.5 mm long; 0.9 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 3.5–4 mm long; 0.9–1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acuminate.

FLORETS Fertile florets female. Fertile lemma ovate; 4 mm long; membranous; keeled; 5 -veined. Lemma midvein pubescent. Lemma margins pubescent; hairy below. Lemma apex acute. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

MALE Male inflorescence similar to female. Male spikelets resembling female.

DISTRIBUTION South America: Brazil.

NOTES Poeae. Fl Cat 1995.

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