Poaceae
Eragrostis

Eragrostis condensata (J.Presl) Steud.

First published in Syn. Pl. Glumac. 1: 278 (1854)
This species is accepted
The native range of this species is Ecuador. It is a perennial and grows primarily in the montane tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/45948/11026553

Conservation
LC - least concern
[IUCN]

Morphology General Habit
Perennial; caespitose. Culms erect; 45-200 cm long. Leaf-sheaths outer margin hairy. Ligule a fringe of hairs. Collar pilose. Leaf-blades flat, or involute; 20-50 cm long; 3-10 mm wide. Leaf-blade surface scaberulous; rough adaxially; pilose; sparsely hairy; hairy adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Peduncle pilose above. Panicle spiciform; linear; continuous, or interrupted; 18-65 cm long; 0.5-1.8 cm wide. Primary panicle branches appressed; 0.1-5.5 cm long. Panicle axis scaberulous; with scattered hairs, or glabrous. Panicle branches bearded in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 0.3-2.5 mm long; scaberulous.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 4-12 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or oblong; laterally compressed; 3.4-7.3 mm long; 1.2-2.6 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas. Rhachilla internodes glabrous, or pilose.
Fertile
Spikelets comprising 4-12 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or oblong; laterally compressed; 3.4-7.3 mm long; 1.2-2.6 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas. Rhachilla internodes glabrous, or pilose.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 1-1.8 mm long; 0.9-1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein smooth, or scaberulous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1.2-1.5 mm long; 0.66-0.8 length of adjacent fertile lemma; membranous; 1-keeled; 1-3 -veined. Upper glume primary vein smooth, or scaberulous. Upper glume lateral veins absent, or obscure. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 1.7-2.9 mm long; membranous; grey; keeled; 3 -veined. Lemma midvein scaberulous. Lemma lateral veins obscure. Lemma apex acute. Palea bowed outwards; 1.6-2.7 mm long. Palea keels scaberulous. Palea apex obtuse. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; cuneate; fleshy. Anthers 3; 0.5-1.4 mm long; yellow, or purple.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; obovoid; 0.5-0.9 mm long; smooth, or striate, or reticulate.
Distribution
South America: western South America.
Reference
Eragrostideae. Fl Ecuador 2002.
[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

  • Herbarium Catalogue Specimens

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

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • 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