Asteraceae

Dimorphotheca Moench

First published in Methodus: 585 (1794), nom. cons.
This genus is accepted
The native range of this genus is Zimbabwe to S. Africa.

Descriptions

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

Morphology General Habit
Annual (or perennial, suffruticose or shrubby, not in Iraq) plants with alternate, entire to pinnatipartite leaves
Morphology Reproductive morphology Inflorescences Capitulum
Capitula terminal, heterogamous, radiate
Morphology Reproductive morphology Inflorescences Bracts Involucre
Involucre broadly campanuate or hemispherical; phyllaries ± uniseriate, herbaceous with a scarious border; receptacle flat or almost so, naked
Morphology Reproductive morphology Flowers Florets
Marginal florets radiate, pistillate, fertile; rays yellow, or white above and ± bluish-suffused beneath
Disc
Disc florets hermaphrodite, fertile or innermost sterile, corolla lobes yellow or tipped with purplish-black
Morphology Reproductive morphology Fruits
Achenes dimorphic, those of ray- florets terete to 3-winged, smooth or usually ± rugose or tuberculate, those of disc florets strongly compressed with a thickened border; pappus absent.
Distribution
Seven species native to southern Africa; one species in Iraq.
Etymology
Dimorphotheca (from the Gr. δυμορφή, dimorfi, two-formed; θήκη, thēkē, a case, alluding to the dimorphic achenes). The plants of this genus are known in cultivation as Cape Marigold (Eng.). Cultivated in Iraq.
[FIQ]

Sources

  • Flora of Iraq

    • Flora of Somalia
    • http://creativecommons.org/licenses/by-nc-sa/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

  • Kew Science Photographs

    • Copyright applied to individual images

  • World Checklist of Vascular plants (WCVP)

    • 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