Poaceae
Poa

Poa cucullata Hack.

First published in Oesterr. Bot. Z. 52: 377 (1902)
This species is accepted
The native range of this species is Ecuador to N. Peru. It is a perennial and grows primarily in the montane tropical biome.

Descriptions

Distribution
Biogeografic region: Andean. Colombian departments: Bogotá DC.
[UPFC]

Morphology General Habit
Perennial. Cataphylls evident. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Basal innovations extravaginal. Culms erect; 20-30 cm long; 0 -noded. Culm-internodes terete. Leaves mostly basal. Ligule an eciliate membrane; 3 mm long; 1 mm long on basal shoots; acute. Leaf-blades conduplicate; 3-10 cm long; 5 mm wide. Leaf-blade surface glabrous. Leaf-blade apex obtuse; hooded.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; dense; 8 cm long; with spikelets clustered towards branch tips. Primary panicle branches 2 -nate; 2-4 cm long. Panicle axis smooth. Panicle branches smooth. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets oblong, or ovate; laterally compressed; 5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus woolly.
Fertile
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets oblong, or ovate; laterally compressed; 5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus woolly.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3.5 mm long; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 4.5 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 4 mm long; membranous; purple; keeled; (3-)5 -veined. Lemma midvein scabrous. Lemma surface asperulous. Lemma apex acute. Palea 0.75 length of lemma. Palea keels scabrous.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 1-2 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
South America: western South America.
Reference
Poeae. Hackel 1995.
[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: not threatened. Confidence: low confidence
[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

  • 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 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

  • Useful Plants and Fungi of Colombia

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