yellow trillium, trillium luteum

america american appalachain appalachia appalachian beauty betsy bloom blooming blue botanical botany bronzon close closeup colony cuneatum detail ecology flower forest green leaf leaves maroon melanthiaceae mountain mountains mountian mountians natural nature outdoors park parkway petal petals plant protected purity purple rare ridge sepal sepals sessile spring springtime states summer sweet toadshade trillium united usa virginia wakerobin wild wildflower wildflowers wood woodland woods yellow