A European tree, Alnus glutinosa (family Betulaceae), common on riverbanks and damp woodland across the northern hemisphere, having rounded toothed…

= alder, n.1 1. Also more fully aldern tree. Now rare.

Any of several trees whose wood was formerly used for making skewers: (a) = prickwood, n. 3; (b) (in full butcher's prick tree) alder buckthorn, Fran…

(a) = alder buckthorn, n. (now rare); (b) North American the winterberry, Ilex verticillata.

More fully aln-tree. An alder tree.

The black alder.

In full berry-bearing alder. The alder buckthorn, Frangula alnus. Now rare.

A Eurasian shrub or small tree, Frangula alnus (family Rhamnaceae), with roundish glossy leaves and black berries, frequently growing in wet…

British regional. An alder tree. Now rare (archaic in later use).

With distinguishing word. Any of various other trees or shrubs of the genus Alnus.

The alder tree.

Alnus oblongata Willd.

attributive. Designating plants and animals found in the region of Oregon. the red alder, Alnus rubra (formerly also known as A. oregona).

a shrub (Rhamnus frangula) = Alder Buckthorn.

name for some species of alder, esp. Alnusincana, A. serrulata, and (on the Pacific coast) A. rubra.