| leptarrhena | (n) one species: leatherleaf saxifrage, Syn. genus Leptarrhena |
| leatherleaf saxifrage | (n) 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, Syn. Leptarrhena pyrolifolia |