Cyperaceae

Machaerina Vahl

First published in Enum. Pl. Obs. 2: 238 (1805)
This genus is accepted
The native range of this genus is Tanzania, W. Indian Ocean to Pacific, Tropical America.

Descriptions

Cyperaceae, K Hoenselaar, B. Verdcourt & H. Beentje. Hypolytrum, D Simpson. Fuirena, M Muasya. Flora of Tropical East Africa. 2010

Morphology General Habit
Perennials with creeping rhizomes or stolons
Morphology Culms
Culms scapose or with a few nodes, compressed or terete
Morphology Leaves
Leaves distichous, blade ensiform to terete; ligule 0
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like
Morphology Reproductive morphology Inflorescences
Inflorescence paniculate with many spikelets
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets with 2–10 distichous persistent glumes.
Morphology Reproductive morphology Inflorescences Bracts Glume
Lower glumes sterile, the larger subtending 1–2 bisexual flowers, the upper 1–2 flowers functionally male
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3
Morphology Reproductive morphology Flowers Gynoecium Style
Style 3-fid, base not distinct, thickened
Morphology Reproductive morphology Fruits
Nutlet beaked, 3-ribbed/winged.
Note
50 species; Old and New World tropics and subtropics.
[FTEA]

Sources

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 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 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0