First collected by the American botanist Asa Gray, after whom it is named. Similar in habit to the closely related L. canadense, and confined to the comparatively small area of North Carolina, Tennessee and Virginia. Itsdiffer from L. canadense in their number – one to eight -smooth funnel shape, and nonrecurved segments. The outside of the flower is deep-carmine, the inside orange, strongly speckled with red-purple. Orange-brown pollen. Grows in the Allegheny Mountains at heights of 3,000-6,000 feet. Rhizomatous bulbs with yellow-white scales similar to those of L. canadense, but lacks its vigorous growth. Germinates only slowly.