Penthoraceae (Ditch Stonecrop) of the Pacific Northwest

Penthorum

Penthorum is a genus of plants in the order Saxifragales. They are erect herbaceous perennials about half a meter tall. The genus consists of two species, one from east Asia and one from eastern North America. It is variously classified in the family Saxifragaceae or its own family Penthoraceae. Its closest relatives may be in Haloragaceae.

ditch stonecrop

Penthorum sedoides, known by the common name ditch stonecrop, is a perennial forb native to the eastern United States and Canada which produces small white flowers in summer.

penthorum family

Penthorum is a genus of plants in the order Saxifragales. They are erect herbaceous perennials about half a meter tall. The genus consists of two species, one from east Asia and one from eastern North America. It is variously classified in the family Saxifragaceae or its own family Penthoraceae. Its closest relatives may be in Haloragaceae.

Edited by Myung Jin (John) Kang, some rights reserved (CC BY-SA)