woody (bittersweet), Solanum dulcamara 欧白英
nipplewort, Lapsana communis 稻槎菜
oil-seed rape, Brassica napus ssp. oleifera 油菜
oregano (marjoram), Origanum vulgare 牛至
oxlip, Primula elatior 高报春
oxtongue, bristly, Picris echioides 刺缘毛连菜
pampas grass, Cortaderia selloana 蒲苇
pansy, field, Viola arvensis 野生堇菜
wild, V. tricolor 三色堇
paperbark, Melaleuca spp. 千层树