Cyperaceae

Bolboschoenus (Asch.) Palla

First published in W.D.J.Koch, Syn. Deut. Schweiz. Fl., ed. 3: 2531 (1905)
This genus is accepted
The native range of this genus is Cosmopolitan.

Descriptions

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

Morphology General Habit
Perennial herb with swollen stem bases and/or rhizomes
Morphology Culms
Culms many-noded, thickened at base
Morphology Leaves
Leaves eligulate
Morphology Reproductive morphology Inflorescences
Inflorescences with few to very many spikelets.
Morphology Reproductive morphology Inflorescences Bracts
Bracts several, leafy
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets with spirally arranged glumes, each subtending a bisexual flower
Morphology General
Hypogynous bristles present
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3
Morphology Reproductive morphology Flowers Gynoecium Style
Style long, filiform, with 2–3 branches
Morphology Reproductive morphology Fruits
Nutlets trigonous to plano-convex compressed, essentially ± smooth, with fine exocarp sculpture of isodiametric or radially elongated cells sometimes with low central papillae
[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
Rhizomatous perennial herbs; culms leafy, noded, trigonous
Morphology Leaves
Leaves eligulate, blades V-shaped in cross section
Morphology Reproductive morphology Inflorescences
Inflorescence variable, bracteated, few to many spikelets
Morphology Reproductive morphology Inflorescences Bracts
Bracts, several, leaf-like, erect or spreading
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets, cylindric, many flowered, sessile or pedunculate
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes spiral, imbricate, awned, each subtending a bisexual floret
Morphology Reproductive morphology Flowers Gynoecium Ovary
Hypogynous bristles present
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3, crested
Morphology Reproductive morphology Flowers Gynoecium Style
Style long, branches 2 or 3
Morphology Reproductive morphology Fruits
Nutlet trigonous or lenticular, slightly beaked, surface smooth, exocarp of isodiametric with central papilla or radially elongate cells.
Distribution
A genus of 14 species with 4 species in Africa. The generic description applies only to the African species.
[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

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.

  • 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