Cyperaceae

Diplacrum R.Br.

First published in Prodr. Fl. Nov. Holland.: 241 (1810)
This genus is accepted
The native range of this genus is Tropics & Subtropics.

Descriptions

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

Morphology General Habit
Annuals or perennials
Morphology Culms
Culm scapose
Morphology Leaves
Leaves without ligule
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaflike, sheathing
Morphology Reproductive morphology Inflorescences
Inflorescence a sessile to shortly stalked cluster of spikelets
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets unisexual, the laterals usually male, the terminal female, female spikelet often apparently 1-flowered.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 2 below the female flower
Morphology Reproductive morphology Flowers
Male flowers with a few distichous glumes and 1 stamen
Morphology Reproductive morphology Fruits
Nutlet ribbed, shortly beaked.
Note
Seven species widely distributed in the Old World, plus one species in South America. This genus is closely related to Scleria.
[FTEA]

J. Browning, K.D. Gordon-Gray†, M. Lock, H. Beentje, K. Vollesen, K. Bauters, C. Archer, I. Larridon, M. Xanthos, P. Vorster, J. Bruhl, K. Wilson and X. Zhang (2020). Flora Zambesiaca Volume: 14: Cyperaceae. M.Á. García, J.R. Timberlake (Eds). Kew Publish

Morphology General Habit
Slender, inconspicuous herb, annual; stem slender, under 150 mm tall
Morphology Leaves
Leaves alternate, simple, linear-lanceolate, eligulate, often reddish purple abaxially
Morphology Reproductive morphology Inflorescences
Inflorescence a pedunculate spikelet cluster axillary to a leaf, lowest 1–2 leaves sterile
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets unisexual, female solitary, terminal between 2 distichous, acuminate glumes; male 0–2 below female
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3–1
Morphology Reproductive morphology Flowers Gynoecium Style
Style branches 3
Morphology Reproductive morphology Fruits
Nutlet round, longitudinally ribbed, grey to blackish, hypogynium white eventually deciduous.
Distribution
A genus of about 6 species widely distributed in the tropical and subtropical Old World, with 2 species in Africa, one in West Africa and one in the Flora area.
[FZ]

Sources

  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • 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 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