New! - Search other data sources for Muhlenbergia pubigluma

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.

Muhlenbergia pubigluma

HABIT Perennial; caespitose; clumped densely. Culms erect; robust; 75–125 cm long; 3 -noded. Culm-internodes distally glabrous. Culm-nodes pubescent. Leaf-sheaths keeled; glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane; 5–13 mm long. Leaf-blades conduplicate; 15–35 cm long; 1–2 mm wide; light green. Leaf-blade surface scabrous; rough abaxially.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; interrupted; 20–35 cm long; 1–2 cm wide. Primary panicle branches appressed; 4–5 cm long; bearing spikelets almost to the base. Panicle axis scabrous.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; scabrous.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2.5–3.3 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; reaching apex of florets; similar to fertile lemma in texture. Lower glume elliptic; 2.5–3.3 mm long; 0.9 length of upper glume; membranous; without keels; 0–1 -veined. Lower glume lateral veins absent. Lower glume surface puberulous. Lower glume apex obtuse. Upper glume elliptic; 2.5–3.3 mm long; 1 length of adjacent fertile lemma; membranous; without keels; 0–1 -veined. Upper glume primary vein absent, or obscure. Upper glume lateral veins absent. Upper glume surface puberulous. Upper glume apex obtuse.

FLORETS Fertile lemma elliptic; 2.9–3.1 mm long; membranous; without keel; 3 -veined. Lemma lateral veins obscure. Lemma surface scabrous; rough above; pubescent; hairy below. Lemma margins pubescent; hairy at base. Lemma apex obtuse, or acute; muticous, or awned; 1 -awned. Principal lemma awn 0.5–3.5 mm long overall. Palea 0.9 length of lemma; 2 -veined. Palea surface pubescent; hairy on back; hairy below.

FLOWER Lodicules 2; cuneate; fleshy. Anthers 3.

FRUIT Caryopsis with adherent pericarp; fusiform.

DISTRIBUTION North America: Mexico.

NOTES Eragrostideae. Soderstrom 2000.

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