Higher Classification: > Kingdom Plantae > Division Tracheophyta > Subdivision Spermatophytina > Class Magnoliopsida > Superorder Rosanae > Order Fagales > Family Betulaceae > Genus Alnus > Species Alnus incana

Alnus incana subsp. rugosa (Du Roi) R. T. Clausen

Rank: Subspecies
Taxon Status: accepted

Relationships towards this taxon

Genus group names

*Alnus*	Mill.	accepted genus name
*Alnaster*	Spach	heterotypic synonym
*Alnobetula*	(W. D. J. Koch) Schur	heterotypic synonym
*Betula-alnus*	Marshall	heterotypic synonym
*Clethropsis*	Spach	heterotypic synonym
*Cremastogyne*	(H. J. P. Winkl.) Czerep.	heterotypic synonym
*Duschekia*	Opiz	heterotypic synonym
*Semidopsis*	Zumagl.	heterotypic synonym

Subspecies group names

*Betula alnus var. rugosa*	Du Roi	basionym
*Alnus glutinosa [unranked] rugosa*	(Du Roi) Regel	homotypic synonym
*Alnus rugosa*	(Du Roi) Spreng.	homotypic synonym
*Alnus serrulata var. rugosa*	(Du Roi) Regel	homotypic synonym
*Betula alnus var. rugosa*	Du Roi	homotypic synonym
*Betula rugosa*	(Du Roi) Ehrh.	homotypic synonym
*Alnus americana*	(Regel) Czerep.	heterotypic synonym
*Alnus canadensis*	Lodd. ex Loudon	heterotypic synonym
*Alnus glauca*	F. Michx.	heterotypic synonym
*Alnus incana f. tomophylla*	Fernald	heterotypic synonym
*Alnus incana var. americana*	Regel	heterotypic synonym
*Alnus incana var. glauca*	(F. Michx.) Loudon	heterotypic synonym
*Alnus incana var. tomophylla*	(Fernald) Rehder	heterotypic synonym
*Alnus rugosa f. emersoniana*	Fernald	heterotypic synonym
*Alnus rugosa f. hypomalaca*	Fernald	heterotypic synonym
*Alnus rugosa f. tomophylla*	(Fernald) Fernald	heterotypic synonym
*Alnus rugosa var. americana*	(Regel) Fernald	heterotypic synonym
*Betula-alnus glauca*	Marshall	heterotypic synonym; nom. nud.