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This species is accepted, and its native range is Central & S. Chile.

[GB]
Habit
Annual; caespitose. Culms geniculately ascending; 3-8 cm long; 2-3 -noded. Culm-internodes distally glabrous. Lateral branches lacking. Leaf-sheaths mostly shorter than adjacent culm internode; glabrous on surface. Ligule an eciliate membrane; 2-3 mm long; obtuse, or acute. Leaf-blades 4-10 cm long; 2-3 mm wide; flaccid. Leaf-blade surface scaberulous; glabrous. Leaf-blade apex acuminate.
Inflorescences
Inflorescence a panicle; shorter than basal leaves; subtended by an inflated leaf-sheath; embraced at base by subtending leaf. Panicle spiciform; ovate; loose; 1-1.5 cm long; 0.6-0.8 cm wide. Primary panicle branches accrescent to a central axis; with evident branchlets on axis. Panicle axis with rounded ribs. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; glabrous.
Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; truncate; 3 mm long; 1.5 mm wide; falling entire.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; truncate; 3 mm long; 1.5 mm wide; falling entire.
Glume
Glumes free; similar; shorter than spikelet, or reaching apex of florets; recurved at apex. Lower glume oblong; 3 mm long; 1 length of upper glume; membranous; much thinner above; much thinner on margins; 1-keeled; 3 -veined. Lower glume primary vein ciliolate. Lower glume lateral veins distinct; convergent at apex. Lower glume surface hispidulous; hairy on veins. Lower glume apex obtuse. Upper glume oblong; 3 mm long; 0.9-1 length of adjacent fertile lemma; membranous; much thinner above; with hyaline margins; 1-keeled; 3 -veined. Upper glume primary vein ciliolate. Upper glume lateral veins convergent at apex. Upper glume surface hispidulous; hairy on veins. Upper glume apex obtuse.
Florets
Fertile lemma oblong; 3 mm long; membranous; keeled; 5 -veined. Lemma margins connate below; with 0.75-0.8 of their length connate. Lemma apex obtuse; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5-0.6 way up back of lemma; straight; 1-1.5 mm long overall; not or scarcely exserted from spikelet. Palea absent or minute.
Flowers
Lodicules absent. Anthers 2; 1 mm long. Ovary glabrous.
Fruits
Caryopsis with adherent pericarp. Disseminule comprising a spikelet.
Distribution
South America: southern South America.
Reference
Aveneae. Hackel 1996.

Native to:

Chile Central, Chile South

Alopecurus heleochloides Hack. appears in other Kew resources:

First published in Repert. Spec. Nov. Regni Veg. 10: 166 (1911)

Accepted by

  • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0