Which genus contains more species Heptacodium or Solanum?
Heptacodium Heptacodium is a genus of plant in family Caprifoliaceae, comprising just the one species found in China:
Oncidium Oncidium, abbreviated as Onc. in the horticultural trade, is a genus that contains about 330 species of orchids from the subtribe Oncidiinae of the orchid family (Orchidaceae). As presently conceived (May 2014), it is distributed across much of South America, Central America, Mexico and the West Indies, with one species "(O. ensatum)" extending into Florida. Common names for plants in this genus include dancing-lady orchid and golden shower orchid.