Alnus incana
'Laciniata'
Cutleaf Grey Alder
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This fine deciduous broadleaf cultivar was introduced circa 1860 and won the First Class Certificate in 1873. It tolerates urban conditions well and is highly recommended to anyone looking for a pyramidal tree to place along the edge of a street or driveway.
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Family |
Betulaceae |
Genus |
Alnus |
Species |
incana |
Cultivar |
'Laciniata' |
Category |
Woody |
Type |
Tree (deciduous) |
USDA Hardiness Zone |
2 - 6 |
Canadian Hardiness Zone |
0a - 5b |
RHS Hardiness Zone |
H7 |
Temperature (°C) |
-46 - (-21) |
Temperature (°F) |
-50 - (-5) |
Height |
10 - 15 m |
Landscape |
A. incana ( the species) is often used in land reclamation, especially around abandoned coal tips. |
Cultivation |
Tolerant of infertile and wet sites. |
Growth |
Medium |
Habitat |
Horticultural origin. |
Bark/Stem Description |
Smooth, grey bark with grey-downy shoots. |
Leaf Description |
Leaves are 4-10 cm, variably with 8 narrow lobes, and dull green. |
Flower Description |
Male catkins 5-10 cm, appearing in clusters of 3-4. |
Fruit Description |
Catkins to 1.5 cm, ovoid, appearing in bunches of 4-12. |
Notable Specimens |
Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England. |