Salix x rubens
Hybrid crack willow · also White crack willow, Crack willow
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Salix x fragilis, commonly known as Crack Willow, is a deciduous tree native to Europe and Western Asia, noted for its invasive nature in North America. It thrives in riparian habitats, reproducing aggressively through rooting broken branches and forming dense thickets. This can alter local hydrology and outcompete native vegetation, making it a concern for ecosystems.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 3130.43%8.8 yr5.9 in
- 120.01%23 yr60 in
- 10.00%—35 in
Traits
- Foliage
- Deciduous
- Mature height
- 30–65 ft
- Growth rate
- Fast
- Water needs
- High
- Roots
- Invasive
- Blooms
- Mar, Apr, May
Trunk diameters across every city: median 5.9 in, mean 13 in, 90th percentile 32 in. Measured at breast height, as published by each inventory.
Native range
Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.
Temperate Broadleaf & Mixed Forests
- Eastern Anatolian deciduous forests
Other Salix in the catalogue
34 of the top 2,000 species are in this genus.
