Youngia japonica (L.) DC.

Etymology Genus May be named after Edward Young, Thomas Young, or Messrs Young
Species from Japan
Family Asteraceae
Synonyms -
Common Names Oriental False Hawksbeard, Japanese Hawkweed
Status Exotic: Naturalised
Form Herb
Native Distribution East China

Diagnostics:

The Oriental False Hawksbeard flowers frequently and its small but attractive yellow flowers are hard to miss. The leaves are situated basally and arranged in a rosette. The leaf margins are wavy or edged, and sparsely lined with small "teeth". More developed leaves can sometimes be pinnatifid.


Interesting Facts:

This is another very common sun-loving weed found all over manicured grasslands in Singapore. It was suspected to originated from China, but introduced to subtropical (like Japan, where the species was named after) and pantropical countries (eFlora, 2008).


Form. Note the small Lesser Grass Blue butterfly nectaring in the background.

Leaf close-up.

Yellow composite flowers

Form. Note the small Lesser Grass Blue butterfly nectaring in the background.


References

eFloras (2008) Youngia japonica (Linnaeus) Candolle. Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge. http://www.efloras.org/. Accessed on 8-Dec-2012.


Posted Date: 2012-12-08 / Modified Date: 2015-01-11