Digitaria henrardii Veldkamp

First published in Blumea 21: 55 (1973)
This species is accepted
The native range of this species is Philippines. It is an annual and grows primarily in the wet 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: threatened. Confidence: confident
[AERP]

Morphology General Habit
Annual; caespitose. Cataphylls inconspicuous. Butt sheaths pilose. Culms erect; 20-40 cm long. Lateral branches ample. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule an eciliate membrane; 0.75-1.75 mm long; erose; truncate. Leaf-blades 1.5-7.5 cm long; 1.5-4 mm wide. Leaf-blade surface glabrous, or pilose; sparsely hairy; hairy adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 2-4; paired, or digitate; unilateral; 1.5-7 cm long. Central inflorescence axis 0.5-2.75 cm long. Rhachis angular; scabrous on margins. Spikelets in pairs. Fertile spikelets pedicelled; 2 in the cluster. Pedicels curved; tip discoid, or cupuliform.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 1.5-2 mm long; falling entire.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 1.5-2 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reaching apex of florets; thinner than fertile lemma. Lower glume oblate; 0.1-0.3 mm long; 0.05-0.15 length of spikelet; membranous; 0 -veined. Lower glume lateral veins absent. Lower glume apex truncate. Upper glume elliptic; 1 length of spikelet; membranous; without keels; (3-)5 -veined. Upper glume lateral veins transversely connected at apex. Upper glume surface pubescent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; (5-)7 -veined; with equidistant veins; with veins transversely connected at apex; pubescent; acute. Fertile lemma elliptic; 1.5-2 mm long; cartilaginous; much thinner on margins; light brown; without keel. Lemma margins flat; covering most of palea. Lemma apex acute. Palea cartilaginous.
Morphology Reproductive morphology Flowers
Anthers 3; 0.5-0.6 mm long; purple.
Distribution
Asia-tropical: Malesia.
Reference
Paniceae. Veldkamp 1993.
[GB]

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
  • 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