   corymbia ficifolia or the red flowering gum also known as albany red flowering gum (previously known as eucalyptus ficifolia) is one of the most commonly planted ornamental trees in the broader eucalyptus family. in 2009, parra-o and colleagues published a combined analysis of nuclear rdna (ets + its) and morphological characters published to clarify relationships within the genus corymbia. c. ficifolia was shown to comprise a natural group with two other western australian species c. calophylla and c. haematoxylon. they classified the group as section calophyllae within the subgenus corymbia. ==distribution== it is native to a very small area of south coastal western australia (measured in just tens of kilometres) to the east of walpole (430&nbsp;km southeast of perth), but is not considered under threat in the wild. ==cultivation and uses== in nature corymbia ficifolia prefers infertile, sandy soils but it is readily adaptable to most temperate locations, provided it is not exposed to severe frost or sustained tropical damp. it is an ideal street tree as it is hardy, moderately fast growing, and rarely grows large enough to require pruning. the largest known single-stemmed tree in the world (216.5&nbsp;cm diameter) is located on princes street in hamilton, new zealand. because of its big and lovely colourful flowers, genetic improvement for cold resistance in dublin area in ireland is being carrying out by collecting seeds from western and southern australia in the coldest parts of australia where it grows. in ireland most of the plants were killed by severe frosts but the surviving shoots have been kept by tissue culture. it is difficult to graft but grows well from seed, typically taking about 7 years before it flowers for the first time and 15â20 years to reach someth
Corymbia Myrtales_of_Australia Ornamental_trees Rosids_of_Western_Australia Trees_of_Australia Trees_of_Mediterranean_climate