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.
Landscapers prize weeping willows for the graceful, draped foliage of this ornamental tree. The weeping willow features narrow leaves shaped like a lance. Leaf length can be up to 8 inches, with leaves hanging vertically off the branch to create the flowing look associated with this plant. Willows produce a medium green leaf that transforms to yellow in the fall.