Stems: rigid, fastigiately branched. Leaves: numerous, crowded, but somewhat spreading, linear-oblong, obtuse, narrowed at the base to a short petiole. Flowers: corolla short-lobed, glabrous.
The flowers of the White Mountain Heather are like little fat cream-coloured bulbs, with a tiny opening that is lobed.
Its leaves are longer and more spreading than those of the Heath, near which it usually grows.