Notes
An introduced weed that early arrived in the Philippines, perhaps via Europe. It was reported as a wayside weed by Blanco already in 1837. It has, as far as we know, not been found elsewhere in SE Asia.
Citation
Merr. 1910 – In: Philipp. J. Sc., Bot.: 50.
de Wit 1956 – In: Webbia: 251.
