Wrightia tinctoria, a flowering plant with hard white wood resembling ivory.

plural of bead-tree

A palm tree, Phoenix dactylifera, whose fruit is the date.

(botany) Ginkgo biloba.

(botany) A much-branched European shrub of large size (Viburnum lantana), with dense cymes of small white flowers, the foliage and young shoots thickly covered with soft mealy down.

plural of tree ring

(mathematics, set theory) A tree (T, <) of height ω₁, each of whose levels is at most countable, and has at least ℵ₂ branches.

A distinctive shrub or small tree native to northern Mexico and the farthest southern edge of California and Arizona, Bursera microphylla, having a smooth-skinned, bulging round trunk reminiscent of an elephant's trunk or legs.

(botany) Cerbera odollam, a tree native to India and other parts of Southern Asia, yielding a potent poison. / Tachigali versicolor, a Central American tree that reproduces once before dying.

plural of Kurepa tree