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.

Eriochloa montevidensis

HABIT Perennial; short-lived; caespitose. Culms erect; 30–100 cm long. Ligule a fringe of hairs. Leaf-blades 5–15 cm long; 2–7 mm wide.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 5–10; borne along a central axis; unilateral; 1–2.5 cm long. Central inflorescence axis 8–20 cm long; glabrous. Rhachis angular; glabrous on surface.

Spikelets in pairs. Fertile spikelets pedicelled. Pedicels oblong; 0.5–1 mm long; glabrous; tip discoid.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3.5–4 mm long; falling entire. Spikelet callus globular; incorporating lowest rhachilla internode with adnate lower glume; glabrous.

GLUMES Glumes one the lower absent or obscure; exceeding apex of florets; thinner than fertile lemma. Upper glume elliptic; 1 length of spikelet; membranous; without keels. Upper glume surface puberulous. Upper glume apex acuminate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; puberulous; acuminate. Fertile lemma oblong; 2 mm long; indurate; without keel. Lemma surface granulose. Lemma margins involute. Lemma apex obtuse; awned; 1 -awned. Principal lemma awn 1 mm long overall. Palea involute; indurate.

DISTRIBUTION South America: Brazil and southern South America.

NOTES Paniceae. Fl Entre Rios 1994.

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