Phellodendron amurense

{
  "id": "MLC-T-ENV-020868",
  "term": "Phellodendron amurense",
  "field": "Environment",
  "definition": "Amur corktree is a deciduous tree named for its thick corky bark (from Greek: phellos for cork and dendron for tree). Mature trees have shelf-like branching and grow from 35-50 ft in height with a spread nearly as wide. Corktree bark is a light golden brown on younger trees and gray-brown, ridged, and furrowed on mature trees. Both young and old trees have bark that is slightly spongy or corky to the touch and a distinctive bright neon yellow layer of inner bark that can be revealed with a quick scrape of a pocket-knife. The leaves are opposite, pinnately compound and composed of 5-13 entire leaflets that are dark green, turning bright yellow in the fall. When crushed, the leaves have a distinctive citrusy smell sometimes likened to a disinfectant or skunk odor. Male and female plants are separate (dioecious) and each bears hanging panicles of yellowish-green flowers from May through June. From mid-June to mid-July, female trees produce abundant clusters of fruits (technically drupes) which are ¼ to ½ in. diameter. The fruits bright are green, turning black in late summer to fall, and may remain on the tree until early winter. Male trees do not produce fruit. The wood of the tree is strong and rot resistant and is prized by some woodworkers.",
  "subject": "Biological substances",
  "references": [
    "National Park Service Plant Conservation Alliance at http://www.nps.gov/plants/alien/fact/pham1.htm"
  ],
  "url": "https://mlchart.com/terminology/environment/phellodendron-amurense/"
}