▁altern ately , ▁gl oss y ▁green , ▁lance - sh aped ▁to ▁cur ved , ▁ ▁long ▁and ▁ ▁wide ▁on ▁a ▁pet io le ▁ ▁long . ▁The ▁flower ▁bud s ▁are ▁p end ul ous ▁and ▁arranged ▁in ▁leaf ▁ax ils ▁in ▁groups ▁of ▁seven ▁on ▁a ▁ped un cle ▁ ▁long , ▁the ▁individual ▁bud s ▁on ▁a ▁p edic el ▁ ▁long . ▁M ature ▁bud s ▁are ▁more ▁or ▁less ▁cyl ind rical ▁to ▁p ear - sh aped , ▁ ▁long ▁and ▁ ▁wide . ▁Flow ering ▁occurs ▁between ▁April ▁to ▁October ▁and ▁the ▁flowers ▁are ▁white ▁to ▁pale ▁p ink . ▁The ▁fruit ▁is ▁a ▁p end ul ous , ▁wo ody , ▁more ▁or ▁less ▁spher ical ▁caps ule ▁ ▁long ▁and ▁ ▁wide ▁on ▁a ▁p edic el ▁ ▁long . ▁ ▁Tax onomy ▁and ▁naming ▁Eu cal y pt us ▁dec ur va ▁was ▁first ▁formally ▁described ▁in ▁ 1 8 6 3 ▁by ▁Ferdinand ▁von ▁Mu eller ▁from ▁a ▁spec imen ▁collected ▁by ▁George ▁Max well ▁near ▁the ▁Por ong ur ups ▁and ▁the ▁description ▁was ▁published ▁in ▁Fragment a ▁ph yt ograph iae ▁Australia e .< ref ▁name =" F . M u ell . "> {{ cite ▁book ▁| last 1 = von ▁Mu eller ▁| first 1 = F erd inand ▁| title = Fragment a ▁ph yt ograph iae ▁Australia e ▁( Volume ▁ 3 ) ▁| date = 1 8 6 3 ▁| publish er =