Asteraceae

Dahlia Cav.

First published in Icon. 1: 56 (1791)
This genus is accepted
The native range of this genus is Mexico to Colombia.

Descriptions

Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Note
- note the names of these popular ornamentals are not authoritative – there are many cultivated Dahlia species and cultivars and much confusion in identification!
[FTEA]

Ghazanfar, S. A., Edmondson, J. R. & Hind, D. J. N. (Eds). (2019). Flora of Iraq, Volume 6: Compositae.Kew Publishing

Morphology General Habit
A glabrous or subglabrous plant mostly up to 1.4 m tall, with lower leaves bipinnate with lanceolate to ovate, dentate leaflets and main stem leaves usually simply pinnate
Morphology Reproductive morphology Inflorescences Bracts Phyllaries
The phyllaries are leafy and ± reflexed, and the capitula radiate, ± nodding
Note
The cultivated forms of this well- known plant are legion, and vary from small double “button” capitula with a dwarfer habit to coarse plants with very large single or double capitula
Ray
Ray limbs are red in wild forms, but wide range of colours are available in cultivation.
[FIQ]

Sources

  • Flora of Iraq

    • Ghazanfar, S. A., Edmondson, J. R. (Eds). (2013-2019). Flora of Iraq, Volumes 5.1, 5.2 and 6.0. Kew Publishing
    • 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 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

  • Kew Science Photographs

    • Copyright applied to individual images