N'ime ụdị osisi conifer asatọ edepụtara, oke ọhịa Lodgepole Pine na-ekpuchi 80% nke oke ọhịa niile. A na-ahụ conifers ndị ọzọ, dị ka Subalpine Fir, Engelmann Spruce, Rocky Mountain Douglas-fir na Whitebark Pine, n'ọhịa ndị gbasasịrị agbasasị na ogige ahụ dum. Ka ọ na-erule afọ 2007, a na-eyi ogwu ogwu egwu site na fungi a maara dị ka ogwu ogwu ọcha; Otú ọ dị, nke a na-ejedebe na oke ọhịa dị n'ebe ugwu na n'ebe ọdịda anyanwụ. Na Yellowstone, ihe dị ka pasent asaa nke ụdị ogwu ogwu ogwu na-emetụta ya, ma e jiri ya tụnyere ihe fọrọ nke nta ka ọ bụrụ ọrịa zuru oke na Montana.
Subalpine Fir, Engelmann Spruce, Rocky Mountain Douglas-fir na Whitebark Pine