| Noun | 1. | Leptarrhena pyrolifolia - plant with basal leathery elliptic leaves and erect leafless flower stalks each bearing a dense roundish cluster of tiny white flowers; moist places of northwestern North America to Oregon and Idaho wild flower, wildflower - wild or uncultivated flowering plant genus Leptarrhena, Leptarrhena - one species: leatherleaf saxifrage |