Poaceae
Chloris

Chloris affinis Caro & E.A.Sánchez

First published in Kurtziana 6: 224 (1971)
This species is accepted
The native range of this species is Argentina (Tucumán). It is a perennial and grows primarily in the subtropical biome.

Descriptions

Morphology General Habit
Perennial. Stolons present. Culms prostrate; 6-10 cm long; rooting from lower nodes. Leaf-sheaths longer than adjacent culm internode; glabrous on surface; outer margin hairy. Ligule a ciliate membrane; 0.3 mm long. Collar glabrous. Leaf-blades conduplicate; 0.8-3.5 cm long; 2-3 mm wide. Leaf-blade surface scaberulous; rough adaxially; pilose. Leaf-blade margins scaberulous.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 5; digitate; unilateral; 3 cm long. Rhachis angular; scabrous on margins. Spikelet packing broadside to rhachis. Spikelets solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 2.5-3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent; obtuse.
Fertile
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 2.5-3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent; obtuse.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma; gaping. Lower glume lanceolate; 1.5-2 mm long; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2-2.5 mm long; 0.75 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; laterally compressed; 2.5-3 mm long; cartilaginous; keeled; 3 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; 2.5-3 mm long overall. Palea 1 length of lemma. Palea keels ciliolate. Rhachilla extension 1.5 mm long. Apical sterile florets 1 in number; barren; lanceolate; 0.5-0.8 mm long. Apical sterile lemmas dentate; 2 -fid; muticous, or awned; 1 -awned. Apical sterile lemma awns 0.3-0.5 mm long; 1 per spikelet in number.
Morphology Reproductive morphology Flowers
Lodicules 2; cuneate; fleshy. Anthers 3. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; trigonous.
Distribution
South America: southern South America.
Reference
Cynodonteae. Caro & Sanchez 1997.
[GB]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). 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 Vascular Plants 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0