Robuta

https://www.scirp.org/journal/paperinformation?paperid=5583 Pollen Morphology of Tribes Gnaphalieae, Helenieae, Plucheeae and Senecioneae (Subfamily... POLLEN morphology of twenty five species representing 12 genera of tribes Gnaphalieae, Helenieae, Plucheeae and Senecioneae (Asteroideae: Asteraceae) was... pollenmorphologytribesgnaphalieaehelenieae