Alnus crispa (Ait.) Pursh
FamilyBetulaceae — APG family: Betulaceae
SynonymsAlnus viridis subsp. crispa (Ait.) Love & Love., Betula crispa Ait.
Common namemountain alder
DescriptionAscending shrub, up to 3 meters tall; leaves glutinous, fragrant, ovate to elliptic, glabrous above, pubescent on nerves below, finely and sharply serrulate or biserru- late; cones on long, slender peduncles.
EcologyOccupies a somewhat indistinct subalpine region, diminishing in height with in- creasing altitude, becoming, at its altitudinal limit, a prostrate dwarf shrub (f. strén- gula Fern.).
Introgrades with subsp. sinuata in the southern part of its range. Described from North America. (See color section.)
Hultén's Flora About

This is a digital representation of Eric Hultén’s ‘Flora of Alaska and Neighboring Territories: A Manual of the Vascular Plants’, which was published by Stanford University Press in 1968. The book was digitized by C. Webb (at UAMN) as part of the Flora of Alaska project, with funding by the US NSF (Grant 1759964 to Ickert-Bond & Webb), and with permission of Stanford University Press. Data and images © 1968 Board of Trustees of the Leland Stanford Jr. Univ. Usage licence: Creative Commons BY-NC-SA 4.0. NB: You may find OCR errors; please refer to the hard-copy if in doubt.