Definitions
1.NounA tree from one of number of species of tree in the genus Populus (poplars), typically growing along watercourses, with fluffy catkins.
2.NounPopulus sect. Aigeiros, a taxonomic section of the poplar genus
3.NounA cottonwood hibiscus (Talipariti tiliaceum, syn. Hibiscus tiliaceus), a flowering shrub or tree in the mallow family.
4.NounA tree of species Ceiba pentandra, native to the American tropics and west Africa; silk-cotton tree.
5.NounSeveral species of trees endemic to New Zealand.