Poaceae

Hygroryza Nees

First published in Edinburgh New Philos. J. 15: 380 (1833)
This genus is accepted
The native range of this genus is Indian Subcontinent to S. China and Indo-China, Taiwan.

Descriptions

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Morphology General Habit
Perennial. Stolons present. Culms prostrate; 5-20 cm long; spongy; rooting from lower nodes. Ligule an eciliate membrane. Leaf-blades elliptic, or oblong, or ovate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open. Primary panicle branches whorled at lower nodes. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 6-7 mm long; falling entire. Floret callus elongated.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 6-7 mm long; falling entire. Floret callus elongated.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes both absent or obscure.
Morphology Reproductive morphology Flowers Florets
Fertile lemma linear; chartaceous; keeled; 5 -veined. Lemma midvein ciliate. Lemma margins ciliate. Lemma apex acuminate; awned; 1 -awned. Palea 1 length of lemma; chartaceous; 3 -veined; 1-keeled. Palea keels ciliate.
Morphology Reproductive morphology Flowers
Lodicules 2. Anthers 6.
Distribution
Temperate Asia, or Tropical Asia.
[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

  • Herbarium Catalogue Specimens

  • 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