Poaceae
Danthoniopsis

Danthoniopsis chevalieri A.Camus & C.E.Hubb.

First published in Rev. Bot. Appl. Agric. Trop. 14: 780 (1934)
This species is accepted
The native range of this species is W. Tropical Africa to Congo. It is a perennial or rhizomatous geophyte and grows primarily in the seasonally dry tropical 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]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/132415797/140835560

Conservation
LC - least concern
[IUCN]

Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

Morphology General Habit
Tufted perennial 1·8–2·7 m. high.
[FWTA]

Morphology General Habit
Perennial; caespitose. Butt sheaths villous. Culms erect; 120-200 cm long; 3-4 -noded. Culm-nodes pubescent. Ligule a fringe of hairs. Leaf-blades linear, or lanceolate; 30-60 cm long; 10-20 mm wide. Leaf-blade surface glabrous, or pubescent; hairy adaxially; with tubercle-based hairs. Leaf-blade margins cartilaginous; entire; scabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Peduncle glandular. Panicle open; oblong, or ovate; 20-27 cm long. Panicle branches glandular (on axis); scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1-8 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 8-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; truncate.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 8-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; truncate.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; reaching apex of florets; thinner than fertile lemma. Lower glume elliptic; 5-6 mm long; 0.5 length of upper glume; chartaceous; yellow, or purple; without keels; 3 -veined. Lower glume apex cuspidate. Upper glume elliptic; 8-10 mm long; 1 length of spikelet; chartaceous; yellow, or purple; without keels; 3 -veined. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets male; with palea; separately deciduous. Lemma of lower sterile floret similar to upper glume; oblong; 8-10 mm long; 1 length of spikelet; membranous; 5-7 -veined; acuminate. Palea of lower sterile floret scabrous. Fertile lemma oblong; 5-5.5 mm long; coriaceous; without keel; 7 -veined. Lemma surface pilose; with a transverse fringe of hair. Lemma margins involute; interlocking with palea keels. Lemma hairs 2-3 mm long. Lemma apex lobed; 2 -fid; with triangular lobes; incised 0.3 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; flat below; 7-8 mm long overall; with twisted column; deciduous; abscissing from top of lemma. Column of lemma awn 3-4 mm long. Palea 2 -veined. Palea keels approximate; thickened; winged; narrowly winged. Palea surface papillose.
Morphology Reproductive morphology Flowers
Anthers 3; 3-4 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Africa: west tropical.
Reference
Arundinelleae. FTA.
[GB]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora of West Tropical Africa

    • Flora of West Tropical Africa
    • 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/

  • 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