Eucalyptus quadricostata, commonly known as the square-fruited ironbark,[1] is a species of small to medium-sized ironbark that is endemic to Queensland. It has rough ironbark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit that are square in cross-section.
Eucalyptus quadricostata is a tree that typically grows to a height of Шаблон:Cvt and forms a lignotuber. It has hard, rough, dark grey to black ironbark on the trunk and branches. Young plants and coppice regrowth have bluish grey to glaucous, egg-shaped to almost round leaves that are Шаблон:Cvt long and Шаблон:Cvt wide and petiolate. Adult leaves are the same shade of dull green on both sides, lance-shaped to curved, Шаблон:Cvt long and Шаблон:Cvt wide, tapering to a petiole Шаблон:Cvt long. The flower buds are arranged on the ends of branchlets in groups of seven on a branched peduncleШаблон:Cvt long, the individual buds on pedicelsШаблон:Cvt long. Mature buds are club-shaped, square in cross-section with a rib on each corner, Шаблон:Cvt long and Шаблон:Cvt wide with a conical, rounded or pyramid-shaped operculum. Flowering has been recorded in January and July and the flowers are white. The fruit is a woody, cup-shaped capsule that is square in cross-section, Шаблон:Cvt long and Шаблон:Cvt wide with the valves near rim level.[1][2][3]
Taxonomy
Eucalyptus quadricostata was first formally described in 1985 by Ian Brooker in the journal Austrobaileya from material he collected near "Oakvale H.S.".[2][4]
