Poaceae
Poa

Poa hitchcockiana Soreng & P.M.Peterson

First published in PhytoKeys 63: 111 (2016)
This species is accepted
The native range of this species is W. South America. It is a perennial and grows primarily in the subtropical biome.

Descriptions

Distribution
Biogeografic region: Andean. Elevation range: 3000–4000 m a.s.l. Native to Colombia. Colombian departments: Bogotá DC, Boyacá, Caldas, Cundinamarca, Meta.
Habit
Herb.
[UPFC]

Morphology General Habit
Perennial; mat forming. Culms prostrate; 30-50 cm long (long); rooting from lower nodes. Ligule an eciliate membrane; 2 mm long. Leaf-blades 3-10 cm long; 2-3 mm wide; flaccid.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; oblong; effuse; 6-22 cm long. Primary panicle branches whorled at most nodes; simple; bearing 2-3 fertile spikelets on each lower branch. Panicle branches capillary. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets linear; laterally compressed; 7-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5-2 mm long; eventually visible between lemmas.
Fertile
Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets linear; laterally compressed; 7-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5-2 mm long; eventually visible between lemmas.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes both absent or obscure (rarely to 1mm long).
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 4-9 mm long; herbaceous; keeled; 5 -veined. Lemma surface scaberulous. Lemma apex setaceously attenuate. Palea keels eciliate.
Morphology Reproductive morphology Flowers
Anthers 3; 4 mm long. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum elliptic.
Distribution
South America: western South America.
Reference
Poeae. WDC.
[GB]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Nativa en Colombia; Alt. 3000 - 4000 m.; Andes.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

Sources

  • Catálogo de Plantas y Líquenes de Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • 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

  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 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 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Useful Plants and Fungi of Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0