Poaceae
Danthoniopsis

Danthoniopsis parva (J.B.Phipps) Clayton

First published in Kew Bull. 21: 123 (1967)
This species is accepted
The native range of this species is Northern Prov. It is a perennial and grows primarily in the seasonally dry tropical biome.

Descriptions

Morphology General Habit
Perennial. Rhizomes elongated. Culms decumbent; 10-30 cm long; 5 -noded; rooting from lower nodes. Culm-nodes glabrous. Ligule a fringe of hairs; 1 mm long. Leaf-blades 2-5.5 cm long; 1-2 mm wide. Leaf-blade apex attenuate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; elliptic; 2-5 cm long. Primary panicle branches 1-2 -nate. Panicle axis pubescent. Panicle branches capillary; pilose. Spikelets solitary. Fertile spikelets pedicelled. Pedicels unequal.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 4.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; bearded; truncate.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 4.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; bearded; truncate.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate, or ovate; 3 mm long; 0.75 length of upper glume; chartaceous; without keels; 3 -veined. Lower glume surface puberulous to pilose. Lower glume apex acute. Upper glume lanceolate, or ovate; 4 mm long; 0.9 length of spikelet; chartaceous; without keels; 5 -veined. Upper glume surface pubescent, or pilose. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets male; with palea; separately deciduous. Lemma of lower sterile floret similar to upper glume; lanceolate; 4.5 mm long; membranous; 5(-7) -veined; truncate. Palea of lower sterile floret pubescent; adorned on keels. Fertile lemma oblong; 4 mm long; coriaceous; without keel; 5-7 -veined. Lemma surface pilose; with a transverse row of hair tufts; bearing 6 hair tufts in all. Lemma margins involute; interlocking with palea keels. Lemma apex lobed; 2 -fid; with lobes 1.2 mm long; incised 0.33 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; flat below; 8 mm long overall; with twisted column. Palea 2 -veined. Palea keels contiguous above a sulcus; thickened; winged; narrowly winged; ciliolate.
Morphology Reproductive morphology Flowers
Lodicules 2; cuneate; fleshy. Anthers 3; 2 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Africa: south.
Reference
Arundinelleae. Phipps.
[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: 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