Wiktionary
red alder
n. A tree in the genus ''Alnus''; (taxlink Alnus rubra species noshow=1).
WordNet
red alder
n. large tree of Pacific coast of North America having hard red wood much used for furniture [syn: Oregon alder, Alnus rubra]
Usage examples of "red alder".
There were red alder and black cottonwood, fir and pine and oak spreading out as the skirmishers of the triumphant forest's march.
The low ground had moisture-loving red alder trees and occasional small thickets of witch hazel.