Two new varieties of Eriogonum ovalifolium (Polygonaceae) from the Intermountain West, USA

Publication Type:

Journal Article

Authors:

James L. Reveal; Donald J. Mansfield

Source:

Phytoneuron, Phytoneuron, Volume 1, p.1-8 (2014)

Call Number:

A14REV01IDUS

Keywords:

Eriogonum ovalifolium, Eriogonum ovalifolium var. focarium, Eriogonum ovalifolium var. rubidium

Abstract:

Two long-known varieties of Eriogonum ovalifolium , E. ovalifolium var. focarium Reveal & Mansfield, var. nov. , and E. ovalifolium var. rubidium (Gand.) Reveal & Mansfield, comb. nov., are proposed. The first is confined to the volcanic cinders flats and slopes of Craters of the Moon National Monument, Butte County, Idaho, and related to the more widespread, northern, higher elevation var. depressum . The second variety is restricted to Steens Mountain of Harney County, Oregon; it is allied to var. nivale of the Sierra Nevada/Cascade cordillera. A key to the varieties is provided.