In cell biology, an organelle (/ ÉËr É¡ É Ë n É l /) is a specialized subunit within a cell that has a specific function. Individual organelles are usually separately enclosed within their own lipid bilayers.
Salix babylonica, commonly called weeping willow or Babylon weeping willow, is a medium to large deciduous tree with a stout trunk topped by a graceful broad-rounded crown of branches that sweep downward to the ground.It grows to 30-50â (sometimes to 60â) tall and as wide. It is native to China.ark is gray-black. Branchlets are typically green or brown. This weeping willow can be a spectacular specimen at the edge of a pond with its branches gracefully weeping down to touch the water, however, it is often very difficult to site this tree in a residential landscape.
Although white willow is the species of willow tree most commonly used for medicinal purposes, other salicin-rich species are employed as well, including crack willow (Salix fragilis), purple willow (Salix purpurea), and violet willow (Salix daphnoides). These all may be sold under the label of willow bark.lthough white willow is the species of willow tree most commonly used for medicinal purposes, other salicin-rich species are employed as well, including crack willow (Salix fragilis), purple willow (Salix purpurea), and violet willow (Salix daphnoides). These all may be sold under the label of willow bark.