▁reaches ▁a ▁height ▁of ▁ 5 0 ▁meters ▁( 1 7 5   ft ). ▁and ▁ 2   m ▁( 6 . 5   ft ) ▁diameter . ▁ ▁The ▁tr unk ▁has ▁grey ish - b rown ▁to ▁dark ▁brown ▁b ark ▁and ▁is ▁often ▁for ked . ▁The ▁leaves ▁are ▁alternate ▁and ▁somewhat ▁cur led ▁between ▁the ▁ve ins ▁and ▁the ▁ser r ated ▁margin . ▁The ▁trees ▁bear ▁separate ▁male ▁and ▁female ▁flowers , ▁both ▁of ▁which ▁are ▁small , ▁surrounded ▁by ▁green ▁b ract s , ▁and ▁rather ▁incon sp ic uous . ▁ ▁In ▁Chile , ▁young ▁spec im ens ▁( ▁which ▁have ▁soft , ▁yellow ish ▁wood ▁) ▁are ▁known ▁as ▁ro ble ▁h ual le , ▁while ▁old ▁trees , ▁which ▁have ▁developed ▁the ▁re dd ish ▁heart wood ▁characteristic ▁of ▁m ature ▁spec im ens ▁are ▁known ▁as ▁ro ble ▁p ell ín . ▁The ▁tree ▁has ▁a ▁good ▁shape ▁and ▁its ▁tim ber ▁is ▁val ued ▁for ▁its ▁dur ability , ▁being ▁used ▁for ▁furn iture - making ▁and ▁in ▁construction . ▁ ▁Cult iv ation ▁The ▁tree ▁was ▁introduced ▁to ▁the ▁British ▁Is les ▁in ▁ 1 8 4 9 . ▁Material ▁with ▁proven ance ▁from ▁different ▁places ▁in ▁its ▁natural ▁environment ▁was ▁tested ▁in ▁cultiv ation ▁in ▁Scotland . ▁Tre es ▁cultiv ated ▁from ▁material ▁collected ▁from ▁ Ñ ub le , ▁which ▁is ▁the ▁proven ance ▁closest ▁to ▁the ▁Equ ator , ▁were ▁the ▁most ▁dam aged ▁by ▁fro st