An economically useful tree, Moringa oleifera, probably native to India, but grown throughout the tropics.

Any of certain trees or any species belonging to the Euonymus genus, a group of flowering plants in the staff vine family.

Any of several balsamic trees of the genus Bursera (or Icica, now Protium), mostly tropical American, whose gum resin is used for incense. / (Jamaica) Chrysobalanus icaco, a tree related to the plums.

fir tree

(biology) A phylogenetic method of analysing evolutionary phenomena that uses the visualization of lineages as tree-like structures.

A poisonous tree of Madagascar (Cerbera manghas (syn. Tanghinia venenifera). Those suspected of crime were forced to eat the seeds of the plumlike fruit, and criminals were put to death by being pricked with a lance dipped in the juice of the seeds.

(idiomatic, dated) In or into a disadvantaged or difficult situation; at a loss; cornered.

Any of several species of the genus Clerodendrum, showy flowering shrubs of tropical regions.

Any of several West Indian trees with more or less leathery foliage, but otherwise dissimilar, such as Pisonia subcordata, Cordia alba, and Cupania glabra.

(chiefly Australia) Any of several species of eucalypt which yield an essential oil that smells of peppermint, especially a member of the stringybark group.