Poaceae
Eragrostis

Eragrostis laniflora Benth.

First published in Fl. Austral. 7: 648 (1878)
This species is accepted
The native range of this species is Australia. It is a perennial and grows primarily in the desert or dry shrubland biome.

Descriptions

Morphology General Habit
Perennial. Rhizomes elongated; scaly; woolly. Butt sheaths woolly. Culms erect; 30-60 cm long; wiry. Lateral branches lacking. Ligule a fringe of hairs. Leaf-blades 5-10 cm long; 1-3 mm wide; stiff.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; linear, or lanceolate; 10-20 cm long. Primary panicle branches simple, or sparsely divided. Spikelets solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 9-62 fertile florets; with diminished florets at the apex. Spikelets linear; straight, or curved; laterally compressed; 6-22 mm long; 2-3.5 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas.
Fertile
Spikelets comprising 9-62 fertile florets; with diminished florets at the apex. Spikelets linear; straight, or curved; laterally compressed; 6-22 mm long; 2-3.5 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein scaberulous. Lower glume apex obtuse. Upper glume ovate; 0.66-0.75 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein scaberulous. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic, or ovate; 2-3 mm long; membranous; keeled; 3 -veined. Lemma margins woolly; hairy below. Lemma apex emarginate. Palea keels woolly; adorned below. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; cuneate; fleshy.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Australasia: Australia.
Reference
Eragrostideae. Gr C Austral 1994.
[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: 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/

  • 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