Top 10 trees facts Selected as the most interesting among botany related questions in Botany quiz How deep is the root system of a giant sequoia?4 meters (13 feet). The sequoias root system is wide spreading, but shallow. There is no taproot. A mature sequoia's roots can occupy over 1 acre of earth and contain over 90,000 cubic feet of soil. Created by: globalquiz.orgbiology facts » Which non-coniferous trees are the tallest in the world?Eucalypts. Eucalyptus regnans, the Australian mountain ash, is the tallest of all flowering plants. Today, the tallest measured specimen named Centurion is 99.6 m (327 ft) tall (taller than the highest giant sequoia). Six other eucalypt species exceed 80 metres in height.Created by: globalquiz.orgplants facts » This kind of tilted forest is a common sight in subarctic taiga. What is this phenomenon caused by?The soil. The permafrost prevents trees from developing deep root system. Climate variations or forest fires can thaw the upper extents of the permafrost, creating a ground slump called thermokarst.Created by: Kasiasoil facts » What is the largest tree-dwelling animal?Orangutan. Adult male orangutans, reaching a weight of 140 kg or more, spend nearly all their time in the forest canopy where they feed, sleep, breed and raise their young. The females even give birth in a treetop nest.Created by: globalquiz.orgapes facts » What is a trigger for opening a sequoia cone?Fire. Young sequoias are able to grow successfully only in mineral soils in full sunlight, free from competing vegetation. They therefore require periodic wildfire to clear the area. Due to very thick bark, the fire doesn't harm sequoia.Created by: globalquiz.orgbotany facts » Which conifer is deciduous?Larch (pictured) is among the dominant plants in boreal forests of Russia and Canada. The needles turn yellow and fall in the late autumn, leaving the trees leafless through the winter.Created by: globalquiz.orgCanada facts » What is the main purpose for baobab to have such thick trunk?Water storage. The swollen trunk of the baobab tree can store as much as 31,700 gallons (120,000 l) of water to endure harsh drought conditions. Indigenous Australians used baobabs as a source of water.Created by: life-o-holicMadagascar facts » This photo was taken in Madagascar. What are these grand trees?Baobabs. These large trees are the only remnants of the tropical forest that once grown in the area. The baobabs were simply too large and tough to be cleared without mechanical tools. The tree can grow up to nearly 100 feet (30 m) tall and 35 feet (11 m) wide.Created by: globalquiz.orgEast Africa facts » Which trees are very shallow rooted?Siberian larch. In Sibrerian Taiga permafrost occurs and restricts root growth. Trees are therefore prone to windfall.Created by: globalquiz.orgnature facts » Which country has the largest forested area? (by total size)Russia is by far the largest country in the world, and 45% of its area is forested. That gives almost twice as large forested area as in Brazil.Created by: globalquiz.orggeography of Brazil facts » Play botany quiz and see all the questions.