Salix nigra
Black willow · also Dudley willow, Swamp willow, Southwestern black willow
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Salix nigra, also known as black willow, is a deciduous tree and the largest North American willow species. It thrives in ample water, commonly found in river beds, swamps, and sloughs throughout its native range. This species is often planted in urban settings where consistent moisture is available.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 3620.05%—26 in
- 3270.10%—5.9 in
- 2210.07%3.4 yr2.0 in
- 1430.31%—28 in
- 1170.04%—16 in
- 1040.03%—9.0 in
- 140.00%35 yr7.5 in
- 120.10%—5.9 in
- 70.00%—13 in
- 60.01%—9.3 in
- 40.01%—33 in
- 30.00%—42 in
- 30.01%—2.0 in
- 20.00%—17 in
- 10.00%—8.3 in
Traits
- Foliage
- Deciduous
- Mature height
- 30–60 ft
- Canopy spread
- 30–60 ft
- Growth rate
- Fast
- Water needs
- High
- Drought tolerance
- Low
- Blooms
- Mar, Apr, May
Trunk diameters across every city: median 11 in, mean 17 in, 90th percentile 39 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
- East Central Texas forests
- Northeast US Coastal forests
Temperate Grasslands, Savannas & Shrublands
- California Central Valley grasslands
- Central US forest-grasslands transition
Other Salix in the catalogue
34 of the top 2,000 species are in this genus.
