Checklist » Betulaceae » Betula pumila
Last updated 12/3/2008 by David Giblin.
Betula pumila L.[FNA3, HC2]
bog birch, dwarf birch

Publication: Mant. Pl. 124. 1767.

Origin: Native

selected vouchers: WTU

Notes: FNA3: "Betula pumila is sometimes treated (in part) as a variety of B . glandulosa Michaux, to which it is related at a subgeneric or sectional level. On the basis of morphology, however, it forms a cohesive and distinct entity (J. J. Furlow 1984). The two main varieties into which B . pumila is often divided (a more southern B . pumila var. pumila , with mostly pubescent, glandless leaves, and a more northern B . pumila var. glandulifera , with less pubescent, gland-bearing leaves) may represent geographic races; these are not well marked, however, and they do not hold up well when the complex is examined as a whole."

References: (none)

Synonyms & Misapplied Names:
Betula borealis Spach
Betula glandulifera (Regel) B.T. Butler
Betula glandulosa Michx. var. glandulifera (Regel) Gleason
Betula glandulosa Michx. var. hallii (Howell) C.L. Hitchc.[HC, VPBC]
Betula hallii Howell
Betula nana L. var. glandulifera (Regel) B. Boivin
Betula pubescens Ehrh. ssp. borealis (Spach) A. Löve & D. Löve
Betula pumila L. f. hallii (Howell) Brayshaw[VPBC, VPBC]
Betula pumila L. var. glabra Regel
Betula pumila L. var. glandulifera Regel[VPBC1, KZ99, FNA3]
Betula pumila L. var. renifolia Fernald