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Willow | |
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|  | | balsam willowSalix pyrifolia Andersson | |
There are more than 50 species of willow throughout Canada, many of which grow as shrubs. The bark of willow trees produces salicin, the active ingredient in aspirin. The leaves of willows are distinguishable from all other Canadian broadleaves. In general their leaves are long and narrow, are pointed at both ends, and have short petioles (leaf-stalks) in comparison to the length of leaf-blades. We present a generic silhouette of a willow tree along with a list of 23 species names and accompanying botanical authorities.
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| | | basket willowSalix viminalis L. | |
N/A
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| | | beaked willowSalix bebbiana Sarg. | |
N/A
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| | | black willowSalix nigra Marsh. | |
N/A
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| | | crack willowSalix fragilis L. | |
N/A
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| | | feltleaf willowSalix alaxensis (Andersson) Coville | |
N/A
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| | | golden weeping willowSalix alba L. Stokes | |
N/A
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| | | heartleft willowSalix eriocephala Michx. | |
N/A
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| | | hooker willowSalix hookeriana Barratt | |
N/A
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| | | littletree willowSalix arbusculoides Andersson | |
N/A
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| | | Mackenzie willowSalix prolixa Andersson | |
N/A
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| | | meadow willowSalix petiolaris Sm. | |
N/A
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| | | Pacific willowSalix lasiandra Benth. | |
N/A
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| | | peachleaf willowSalix amygdaloides Anderss. | |
N/A
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| | | purple-osier willowSalix purpurea L. | |
N/A
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| | | sandbarwillowSalix exigua Nutt. | |
N/A
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| | | satiny willowSalix pellita Andersson | |
N/A
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| | | scouler willowSalix scouleriana Barratt | |
N/A
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| | | shinning willowSalix lucida M | |
N/A
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| | | Sitka willowSalix sitchensis Sanson. | |
N/A
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| | | violet willowSalix daphnoides Villars | |
N/A
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