As in other mammals, thermoregulation is an important aspect of human homeostasis. Most body heat is generated in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. Humans have been able to adapt to a great diversity of climates, including hot humid and hot arid.
Japanese knotweed is a perennial weed, producing tall canes, up to 2.1m (7ft) in height during the summer. The canes have characteristic purple flecks, and produce branches from nodes along its length. These branches support shovel-shaped leaves.
Invasive Plants of Ohio: Fact Sheet 10 - Japanese Knotweed (PDF | 254 KB) Ohio Invasive Plants Council. See also: Invasive Plants of Ohio for worst invasive plant species identified in Ohio's natural areas. Southeast Exotic Pest Plant Council Invasive Plant Manual - Japanese Knotweed.