The plant Nyctanthes arbor-tristis.

(biblical) One of the trees in the Garden of Eden.

A deciduous tree, Couroupita guianensis, family Lecythidaceae, native to tropical Central and South America and widely cultivated elsewhere.

(computing theory) A purely functional tree-like data structure offering amortized constant time access to its "fingers" (leaves), used for the efficient implementation of other purely functional data structures.

The electrical pre-breakdown damaging phenomenon in solid insulation due to partial discharge and progresses through stressed dielectric insulation in a path resembling the branches of a tree.

A suburb of Livesey parish, Blackburn with Darwen, Lancashire, England (OS grid ref SD6526). / A suburb of Romiley, Stockport borough, Greater Manchester, England (OS grid ref SJ9590).

An electrical treeing phenomena inside an insulation caused by the presence of water inside buried or water-immersed high voltage cables.

Xanthostemon paradoxus, a species of shrub or tree.

(botany) A tree of the species Carya illinoinensis, the members of which are valued agriculturally for their fruit, the pecan, and the wood of the tree, pecan wood, used in woodworking as well as smoking meats.

Eucalyptus urnigera, a Tasmanian tree with urn-shaped fruit.