Grey Alder

Plant Characteristics
Habit		tree
Height:	⇕	70 ft"ft" can not be assigned to a declared number type with value 70.
Width:	⇔	30 ft"ft" can not be assigned to a declared number type with value 30.
Lifespan:	⌛	perennial

Scientific Names
Betulaceae >	Alnus >	incana >

Read about Grey Alder in the Standard Cyclopedia of Horticulture
Alnus incana, Willd. Shrub or tree, to 60 ft. : branches pubescent: lvs. oval or oblong-ovate, acute, 1 1/4-4 in. long, doubly serrate, pubescent or nearly glabrous beneath: cones 4-8; mostly sessile, 1/2 in. long. Northern hemisphere, in different varieties. ^CH The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.

Cultivation

Do you have cultivation info on this plant? Edit this section!

Do you have propagation info on this plant? Edit this section!

Do you have pest and disease info on this plant? Edit this section!

There are four to six subspecies, some treated as separate species by some authors^wp:

Alnus incana subsp. incana (Grey Alder). Northern Europe and northwestern Asia, and central and southern Europe in mountains, mainly in the regions of the Alps, Carpathians and the Caucasus.
Alnus incana subsp. hirsuta (A. hirsuta; Manchurian Alder). Northeastern Asia, and central Asia in mountains.
Alnus incana subsp. kolaensis. Subarctic northeast Europe.
Alnus incana subsp. oblongifolia (A. oblongifolia; Arizona Alder). Southwestern North America.
Alnus incana subsp. rugosa (A. rugosa; Speckled Alder). Northeastern North America.
Alnus incana subsp. tenuifolia (A. tenuifolia; Thinleaf Alder or Mountain Alder). Northwestern North America.

From SCH^CH: Var. glauca, Ait. (A. glauca, Michx.). Shrub, to 12 ft.: lvs. often nearly glabrous beneath. N. Amer., Eu. Em. 251.

Var. vulgaris, Spach. Tree, to 50 ft.: lvs. usually densely pubescent beneath: cones 1 in. long. Eu., Asia.

Var. pinnatifida, Spach (var. laciniata, Hort.). Lvs. pinnately lobed or cleft, with dentate lobes.

If you have a photo of this plant, please upload it! Plus, there may be other photos available for you to add.

w:Grey Alder. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
Grey Alder QR Code (Size 50, 100, 200, 500)

This article is a stub. You can help Gardenology.org by expanding it.