GrassBase - The Online World Grass Flora


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

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

Aristida ecuadoriensis

HABIT Perennial; caespitose. Culms 50–70 cm long. Ligule a fringe of hairs. Leaf-blades 10–20 cm long; 2–3 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 10–20 cm long. Primary panicle branches ascending.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 6–7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.

GLUMES Glumes similar; reaching apex of florets, or exceeding apex of florets; thinner than fertile lemma. Lower glume linear; 5–5.5 mm long; 0.75 length of upper glume; membranous. Lower glume apex acute. Upper glume linear; 6–7 mm long; 1–1.1 length of adjacent fertile lemma; membranous. Upper glume apex acute.

FLORETS Fertile lemma linear; subterete; 5–7 mm long; coriaceous; without keel; 3 -veined. Lemma margins convolute; covering most of palea. Lemma apex awned; 3 -awned. Principal lemma awn with 8–11 mm long limb. Lateral lemma awns subequal to principal.

FLOWER Anthers 3.

DISTRIBUTION South America: western South America.

NOTES Aristideae. Gr Peru 1995.

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