Chloris castilloniana Parodi

First published in Physis (Buenos Aires) 4: 176 (1918)
This species is accepted
The native range of this species is S. Bolivia to N. Argentina. It is a perennial and grows primarily in the subtropical biome.

Descriptions

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: not threatened. Confidence: confident
[AERP]

Morphology General Habit
Perennial; caespitose. Culms 50-100 cm long. Leaf-sheaths glabrous on surface. Ligule a ciliate membrane. Leaf-blades 10-20 cm long; 4-5 mm wide. Leaf-blade surface glabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 8-15; digitate; erect, or ascending; unilateral; 9-11 cm long. Rhachis subterete. Spikelet packing broadside to rhachis; regular. Spikelets appressed; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3.5-4.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded; acute.
Fertile
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3.5-4.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded; acute.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma; gaping. Lower glume lanceolate; 1.6-2 mm long; 0.5 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; 2.9-3.9 mm long; 0.8 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute; muticous, or mucronate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate, or elliptic; laterally compressed; gibbous; 3.5-4.7 mm long; cartilaginous; keeled; 3 -veined. Lemma midvein eciliate. Lemma surface glabrous, or pilose; hairy between veins (in hollow). Lemma margins ciliate; hairy all along. Lemma hairs 1-2 mm long. Lemma apex acute; awned; 1 -awned. Principal lemma awn subapical; 2.2-2.5 mm long overall. Apical sterile florets 1 in number; barren; oblong; 1.5-2 mm long. Apical sterile lemmas glabrous; truncate; awned; 1 -awned. Apical sterile lemma awns 1-2 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; ellipsoid; dorsally compressed; trigonous; 2 mm long.
Distribution
South America: western South America and southern South America.
Reference
Cynodonteae. Anderson.
[GB]

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 2024. 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 2024. 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