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Alnus viridis crispa - (Aiton.)Turrill.
                 
Common Name American Green Alder
Family Betulaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Rocky shores, slopes and mountains[43]. Singly or in thickets along streams, lakeshores, coasts, and bog or muskeg margins, or on sandy or gravelly slopes or flats, from sea level to 2000 metres[270].
Range Eastern N. America - Labrador to Alaska and Newfoundland and southwards.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Moist Soil Wet Soil Semi-shade Full sun

Summary

Alnus viridis crispa American Green Alder


Alnus viridis crispa American Green Alder
   
Physical Characteristics
 icon of manicon of shrub
Alnus viridis crispa is a deciduous Shrub growing to 3 m (9ft) by 3 m (9ft).
It is hardy to zone (UK) 4. It is in flower from Apr to May. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by Wind.It can fix Nitrogen.
Suitable for: medium (loamy) and heavy (clay) soils and can grow in heavy clay and nutritionally poor soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist or wet soil.

Synonyms
A. crispa. (Ait.)Pursh. A. sinuata.

Habitats
Woodland Garden Secondary; Bog Garden;
Edible Uses
Edible Parts: Flowers.
Edible Uses:

Catkins - raw or cooked. A bitter taste[172].
Medicinal Uses


Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

Abortifacient;  Appetizer;  Astringent;  Emetic;  Emmenagogue;  Haemostatic;  Poultice;  Skin;  
Stomachic;  Tonic.

The bark is astringent, emetic, haemostatic, stomachic and tonic[172]. The bark was burnt as an inhalant in the treatment of rheumatism[257]. The ashes were also used as a tooth cleaner[257]. A decoction of the inner bark has been used as a carminative to reduce gas in the stomach and as a febrifuge[257]. A decoction of the plant has been used in a steam treatment to bring about menstruation - it has been used as an abortifacient[257]. A poultice of the leaves has been used to treat infected wounds or sores[257]. The poultice was left in place over the wound until the leaves stuck to it and was then pulled off, removing the 'poison' with it[257]. An infusion of the plant tops was given to children with poor appetites[257].
Other Uses
Dye;  Teeth.

An orange-red to brown dye can be obtained from the bark[257].
Cultivation details
Prefers a heavy soil and a damp situation[1, 11]. Grows well in heavy clay soils. A useful plant for cold damp places[11]. Tolerates lime and very infertile sites[11, 200]. 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].
Propagation
Seed - best sown in a cold frame as soon as it is ripe and only just covered[200]. Spring sown seed should also germinate successfully so long as it is not covered[200, K]. The seed should germinate in the spring as the weather warms up. When large enough to handle, prick the seedlings out into individual pots. If growth is sufficient, it is possible to plant them out into their permanent positions in the summer, otherwise keep them in pots outdoors and plant them out in the spring. If you have sufficient quantity of seed, it can be sown thinly in an outdoor seed bed in the spring[78]. The seedlings can either be planted out into their permanent positions in the autumn/winter, or they can be allowed to grow on in the seed bed for a further season before planting them. Cuttings of mature wood, taken as soon as the leaves fall in autumn, outdoors in sandy soil.

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Other Names
Found In
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Alnus cordataItalian Alder00
Alnus glutinosaAlder, European alder , Common Alder, Black Alder03
Alnus hirsuta 00
Alnus incanaGrey Alder, Speckled alder, Thinleaf alder, White Alder00
Alnus japonicaJapanese Alder01
Alnus maritimaSeaside Alder, Beach Alder00
Alnus maximowiczii 00
Alnus nepalensisNepalese Alder01
Alnus nitida 01
Alnus rhombifoliaWhite Alder12
Alnus rubraRed Alder, Oregon Alder22
Alnus rugosaSpeckled Alder02
Alnus serrulataSmooth Alder, Hazel alder02
Alnus sinuataSitka Alder11
Alnus tenuifoliaMountain Alder, Thinleaf alder12
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Subject : Alnus viridis crispa  

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