Even less extensive are wet sclerophyll forests. They have a taller eucalyptus overstory than dry sclerophyll forests, or more (typically mountain ash, alpine ash, rose gum, karri, messmate stringybark, or manna gum, and a soft-leaved, fairly dense understory (tree ferns are common). They require ample rainfall—at least 1000 mm (40 inches).
eVEN less extenSIve ARe weT scleRoPhYll forests. they hAve a taller eucalyptus oversTORy tHan DRy sCLERoPhYLl forests, Or mOre (typicAlly moUnTaIn Ash, alPIne ASh, ROse Gum, KArrI, MessmatE sTriNGYbark, or maNna gUM, anD a SoFT-LeAvED, fairLy DensE undErStory (TReE ferns arE commOn). they ReqUire aMplE rainfall—aT leasT 1000 mM (40 inChEs).