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Reference · Crops

Salicaceae

Willow (genus Salix) belongs to the Salicaceae family and comprises hundreds of species of deciduous trees and shrubs. It is globally recognized in agriculture as a highly efficient crop for short rotation coppice (SRC), primarily grown for renewable biomass, pulp production, and environmental protection services.

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Willow50 Casearia23 Banara2 Dovyalis2 Carrierea1
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Willow Salix L. 50 items Alpine willow Salix alpina Andrews poplar Populus andrewsii Apennine willow Salix apennina Arbutus-leaf willow Salix arbutifolia Argentine willow Salix argentinensis Arroyo willow Salix lasiolepis Azara Azara Azara dentata Azara dentata Azara lanceolata Azara lanceolata Azara microphylla Azara microphylla Azara petiolaris Azara petiolaris Azara serrata Azara serrata Azara uruguayensis Azara uruguayensis Bailey poplar Populus baileyana Bakko Willow Salix bakko Balfour Willow Salix balfourii Balsam willow Salix pyrifolia Banara Banara 2 items Bearberry willow Salix uva-ursi Beautifully flowering willow Salix calliantha Bebb willow Salix bebbiana Berberis-leaved willow Salix berberifolia Bigtooth aspen Populus pseudograndidentata Black cottonwood Populus trichocarpa Blue willow Salix caesia Blueberry willow Salix myrtilloides Bonpland willow Salix bonplandiana Boyd's Willow Salix boydii Brandegee poplar Populus brandegeei Canadian poplar Populus ontariensis Canary willow Salix canariensis Cantabrian willow Salix cantabrica Carrierea Carrierea 1 item Casearia Casearia 23 items Caspian willow Salix caspica Chinese aspen Populus adenopoda Chinese necklace poplar Populus lasiocarpa Chinese poplar Populus cathayana Coastal Plain willow Salix caroliniana Coin-leaf willow Salix nummularia Coyote willow Salix exigua Creeping willow Salix reptans Cup-shaped willow Salix calyculata Dark-leaved willow Salix atrocinerea David poplar Populus davidiana Dewy willow Salix irrorata Diamondleaf willow Salix pulchra Don's Willow Salix doniana Dovyalis Dovyalis 2 items Dovyalis abyssinica Dovyalis abyssinica Dovyalis longispina Dovyalis longispina Dovyalis macrocalyx Dovyalis macrocalyx Dovyalis rhamnoides Dovyalis rhamnoides Dovyalis zenkeri Dovyalis zenkeri Dovyalis zeyheri Dovyalis zeyheri Dwarf willow Salix humilis Eastwood willow Salix eastwoodiae Ehrhart's Willow Salix ehrhartiana Erdinger Willow Salix erdingeri
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Salicaceae

Native to the temperate and cold regions of the Northern Hemisphere, the willow is well-adapted to diverse climates. However, for commercial productivity, the plant requires moist, fertile soils. Its resilience to waterlogging and its ability to thrive in riparian zones make it an excellent choice for sites where other crops might fail.

The botanical architecture of the willow includes a fibrous and aggressive root system that aids in soil stabilization. The plants are characterized by rapid juvenile growth and the ability to sprout from the stump after harvesting. These physiological traits allow for multiple harvests from a single planting cycle lasting up to 20 years.

Successful cultivation requires site preparation to minimize weed pressure, as young willows are poor competitors. Soil testing is essential to ensure adequate pH levels, ideally ranging between 5.5 and 7.5. Fertilization regimes should be tailored to the expected biomass yield, focusing on nitrogen and phosphorus availability.

Economic and ecological applications for willow are broad:

  • Energy production through biomass combustion.
  • Soil erosion control and riverbank restoration.
  • Phytoremediation of contaminated soils.
  • Traditional basketry and ornamental landscaping.
Management of pests, such as willow beetles and sawflies, and diseases like rust (Melampsora spp.) is critical for maintaining healthy plantations.