Gamochaeta Wedd.

First published in Chlor. Andina 1: 151 (1856)
This genus is accepted
The native range of this genus is New World.

Descriptions

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

Morphology General Habit
Annual or perennial herbs
Morphology Leaves
Leaves alternate, sessile, tomentose, eglandular
Morphology Reproductive morphology Inflorescences Capitulum
Capitula disciform, in clusters or racemes; receptacle flat, epaleate; phyllaries with undivided stereome and transparent, brownish lamina
Morphology Reproductive morphology Flowers Florets
Outer florets female, filiform, many; inner florets fewer, hermaphrodite, purple, anthers short caudate, style branches truncate
Morphology Reproductive morphology Fruits
Achenes with mucilaginous hairs; pappus uniseriate, of barbellate bristles connate at the base.
[FTEA]

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 herbs
Morphology Leaves
Leaves alternate, tomentose on both surfaces, flat, margins entire
Morphology Reproductive morphology Inflorescences Capitulum
Capitula heterogamous, disciform; phyllaries papery, brownish, stereome undivided; receptacle flat, epaleaceous Capitula many, in glomerule-like or spike-like clusters
Morphology Reproductive morphology Flowers Florets
Outer florets female, numerous, corollas filiform, purple
Disc
Disc florets hermaphrodite, few, corollas cylindrical, (4–)5-lobed, purple; style arms truncate, apically hairy
Morphology Reproductive morphology Fruits
Achenes oblong, setuliferous, setulae of globose twin-hairs; pappus setae capillary, barbellate, bases connate into a ring.
Distribution
About 50–80 species, predominantly from South America, with adventive weeds in Africa, Asia, Australia, and Europe. Only one species is found in the Flora area.
Etymology
Gamochaeta (from Gr. γαμο, gamo, marriage and χαιτε, chaite, mane, in reference to the hair covering)
[FIQ]

Sources

  • Flora of Iraq

    • Flora of Somalia
    • 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

  • 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

  • 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