Poa mannii

HABIT Perennial; caespitose. Culms decumbent; 30 cm long; wiry. Culm-internodes solid. Leaf-sheaths tubular for much of their length; glabrous on surface. Leaf-sheath auricles erect; 2–3 mm long. Ligule an eciliate membrane; 1.7–3 mm long; lacerate; obtuse. Leaf-blades deciduous at the ligule; 5–15 cm long; 2–4 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 2–5 cm long. Primary panicle branches ascending. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

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

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

FLORETS Fertile lemma ovate; elliptic in profile; 3–4 mm long; membranous; keeled; 5 -veined. Lemma midvein pubescent; hairy below. Lemma lateral veins with distinct primaries but obscure intermediates. Lemma surface pubescent; hairy below; hairy on veins. Lemma apex acute. Palea 1 length of lemma. Palea keels scaberulous; ciliolate; adorned in the middle. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Pacific: north-central.

NOTES Poeae. Hitchcock 1993.

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