Alnus rugosa Speckled alder (Betulaceae) Deciduous tree

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Alnus rugosa
Speckled alder
Deciduous tree
(1 Page of 5)

The Alnus rugosa plant species is found in Northern and Eastern N. America - Hudson's Bay to Virginia. Naturalized in C. Europe[50]. It is a member of the Betulaceae family. Common gardeners may know the plant as Speckled alder. Some home gardeners know the variety as A. incana rugosa. (Duroi.)Clausen.

Cultivation | Propagation | General Uses
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Latin Name:  Alnus rugosa
Common Name:  Speckled alder
Family:  Betulaceae
Author:  (Duroi.)Spreng.

Known Hazards:  None known

Mature Height:  22   Mature Width:

Habitat:  Wet sandy or gravelly soils, usually along streams and rivers, but also in ponds and swamps[229]. It is only found in open sunny areas, being unable to compete in dense shade[229].

Cultivation Notes: Prefers a heavy soil and a damp situation[1, 11]. Grows well in heavy clay soils[11]. Tolerates very infertile sites[200]. A fast-growing but short-lived tree[229]. Closely related to A. incana[11] and considered to be no more than a sub-species by some botanists[226]. This species has a symbiotic relationship with certain soil micro-organisms, these form nodules on the roots of the plants and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[200].

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Cultivation | Propagation | General Uses
Medicinal | Edible Uses

The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'.
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