Poaceae
Echinochloa

Echinochloa leandriana (Bosser) Voronts.

First published in Candollea 77: 220 (2022)
This species is accepted
The native range of this species is SW. Madagascar. It is a perennial and grows primarily in the seasonally dry tropical biome.

Descriptions

Morphology General Habit
Perennial. Cataphylls evident. Rhizomes short. Stolons present. Culms geniculately ascending; 10-20 cm long; 1 mm diam. Culm-nodes pubescent. Leaf-sheaths mostly shorter than adjacent culm internode; keeled; outer margin hairy. Ligule absent. Leaf-blades linear, or lanceolate; 11 cm long; 7 mm wide. Leaf-blade surface pubescent; hairy on both sides. Leaf-blade margins smooth, or scaberulous.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 4-5; borne along a central axis; unilateral; 1.5-2 cm long. Rhachis wingless; angular. Spikelets in pairs. Fertile spikelets pedicelled. Pedicels 0.5-1.5 mm long; ciliate.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 2 mm long; falling entire.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 2 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; clasping; 1.5 mm long; 0.75 length of spikelet; membranous; without keels; 5 -veined. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume surface hirsute. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets male, or barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; hirsute; hairy above; acute. Fertile lemma ovate; 2 mm long; indurate; yellow; shiny; without keel. Lemma margins involute. Lemma apex acute. Palea involute; indurate; without keels.
Distribution
Africa: western Indian ocean.
Reference
Paniceae. Bosser 2007.
[GB]

Sources

  • 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 2026. 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 2026. 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