Cinchona pubescens hence its nickname the red quinine tree. Its flowers form in large panicles. They are pink and fragrant, while in the Galapagos they are light pink. "C. pubescens" has the widest distribution of all "Cinchona" species, with the native range spanning Costa Rica, Panama, Venezuela, Colombia, Ecuador, Peru, and Bolivia. In Ecuador it is distributed within an altitude from . It also grows well in volcanic soil with high nutrient levels. C. pubescens is a resilient species that is able to recover from even extreme damage. If the tree is felled but the stump is left, it can grow back
Bark (botany) ridges. In the cork oak ("Quercus suber") the bark is thick enough to be harvested as a cork product without killing the tree; in this species the bark may get very thick (e.g. more than 20 cm has been reported). Some barks can be removed in long sheets; the smooth surfaced bark of birch trees has been used as a covering in the making of canoes, as the drainage layer in roofs, for shoes, backpacks etc. The most famous example of using birch bark for canoes is the birch canoes of North America. The inner bark (phloem) of some trees