Brook-Side Alder
Alnus serrulata (Aiton) Willd.

Alnus serrulata (Aiton) Willd., known as Brook-Side Alder, is a shrub in the Betulaceae family. It is native to eastern North America, occurring from Nova Scotia and New Brunswick to Florida and Texas. It was first described in 1805.
Description
Alnus serrulata, also referred to as hazel alder or smooth alder, is a thicket-forming shrub. It is distributed across New Brunswick, Nova Scotia, Prince Edward Island, Quebec, Vermont-US, and other regions in the eastern United States and Canada. This species is part of the Betulaceae family and is commonly found in wetland and riparian habitats.
Other common names
Brook-Side AlderBrookside AlderCommon AlderHazel AlderSmooth AlderTag Alder
Distribution
New Brunswick · Nova Scotia · Prince Edward Island · Quebec · Vermont-US · Global · Alabama · Arkansas · Connecticut · Delaware · District of Columbia · Florida · Georgia · Illinois · Indiana · Kentucky · Louisiana · Maine · Maryland · Massachusetts · Mississippi · Missouri · New Hampshire · New Jersey · New York · North Carolina · Ohio · Oklahoma · Pennsylvania · Québec
Synonyms
Betula alnus var. serrulataBetula oblongataBetula serrulataAlnus glutinosa var. oblongataAlnus americanaAlnus autumnalisAlnus glutinosa var. autumnalisAlnus glutinosa var. serrulataAlnus incana var. serrulataAlnus latifoliaAlnus macrophyllaAlnus noveboracensisAlnus oblongataAlnus rubraAlnus rugosa var. obtusifoliaAlnus rugosa var. serrulataAlnus serrulata f. emarginataAlnus serrulata var. macrophyllaAlnus serrulata f. mollescensAlnus serrulata f. nanellaAlnus serrulata f. noveboracensisAlnus serrulata var. obtusifoliaAlnus serrulata var. subellipticaAlnus serrulata var. serrulataAlnus serrulata f. serrulataAlnus serrulata var. vulgarisAlnus oblongata var. ellipticaAlnus macrophyllaAlnus rubraAlnus glutinosa prol. oblongata