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.


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.

Naturalizada en Colombia; Alt. 1200 - 2300 m.; Andes, Sierra Nevada de Santa Marta.
Morphology General Habit
No Evaluada

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.
Habitat according IUCN Habitats Classification: forest and woodland, shrubland, artificial - terrestrial.

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.
Grand Cayman, Native of Japan and Eastern Asia.
Now established as a weed in many tropical countries.

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.

Predicted extinction risk: not threatened. Confidence: confident


Use Food
Used for food.
Use Medicines
Medical uses.


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