Asteraceae
Youngia

Youngia japonica (L.) DC.

First published in Prodr. 7: 194 (1838)
This species is accepted
The native range of this species is Tropical & Subtropical Asia. It is an annual or biennial and grows primarily in the subtropical biome. It is used as a medicine and for food.

Descriptions

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Naturalizada en Colombia; Alt. 1200 - 2300 m.; Andes, Sierra Nevada de Santa Marta.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

Distribution
Biogeografic region: Andean. Elevation range: 1200–2300 m a.s.l. Naturalised in Colombia. Colombian departments: Cauca, Cesar, Magdalena, Quindío, Santander, Tolima, Valle del Cauca.
Habit
Herb.
Ecology
Habitat according IUCN Habitats Classification: forest and woodland, shrubland, artificial - terrestrial.
[UPFC]

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

Morphology General Habit
Erect stems up to 25 cm tall or more, with rather few reduced cauline leaves with rounded or acute apex and tapering base, glabrous, the texture membranous. Annual rosette herb, the basal leaves lanceolate-oblong or narrowly obovate, 3–6 cm long, 2–5 cm broad, runcinate-pinnatifid with a large terminal segment, the margins dentate
Morphology Reproductive morphology Inflorescences
Inflorescence scapose, diffusely cymose-paniculate
Morphology Reproductive morphology Inflorescences Bracts Involucre
Involucres 4 mm long with 6 or 7 bracts, those of the outer series ovate, 1.2 mm long, those of the inner series linear-oblong, to 5 mm long, glabrous; heads 20-flowered, yellow
Morphology Reproductive morphology Fruits
Achenes oblong-ellipsoid, 1.5 mm long, tapered at each end, many ribbed, brown; pappus-bristles white, 4 mm long.
Distribution
Grand Cayman, Native of Japan and Eastern Asia.
Ecology
Now established as a weed in many tropical countries.
[Cayman]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Uses

Use Food
Used for food.
Use Medicines
Medical uses.
[UPFC]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Catálogo de Plantas y Líquenes de Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of the Cayman Islands

    • Flora of the Cayman Islands
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew 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

  • Kew Science Photographs

    • Copyright applied to individual images

  • Useful Plants and Fungi of Colombia

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