Asteraceae

Youngia Cass.

First published in Ann. Sci. Nat. (Paris) 23: 88 (1831)
This genus is accepted
The native range of this genus is Afghanistan to Japan and W. & Central Malesia.

Descriptions

George R. Proctor (2012). Flora of the Cayman Isands (Second Edition). Royal Botanic Gardens, Kew

Morphology General Habit
Rosette herbs, usually annual, with a spreading tuft of basal leaves and erect stems with scattered alternate leaves. Basal leaves lyrate, pinnatifid and membranous in texture
Morphology Reproductive morphology Inflorescences
Inflorescence paniculate or corymbose, the heads small
Morphology Reproductive morphology Inflorescences Bracts Involucre
Involucre cylindrical, its bracts biseriate; receptacle flat, naked
Morphology Reproductive morphology Flowers
Flowers 8–20, the ligules 4- or 5-dentate. Anthers with linear acute basal auricles
Morphology Reproductive morphology Fruits
Achenes small, oblong, subterete or angular, attenuate at both ends, ribbed with disc at apex; pappus uniseriate, of numerous fine hairs.
Distribution
A genus of about 30 species of temperate and tropical Asia.
[Cayman]

Sources

  • Flora of the Cayman Islands

    • Flora of the Cayman Islands
    • 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