Published in Sida, Contributions To Botany, in 2002, in volume 20, issue 1, pages 71-96

Created: 2015-12-02, modified: 2015-12-02

Published in The Great Basin Naturalist, in 1994, in volume 54, issue 3, pages 193-203

Created: 2017-11-16, modified: 2017-11-16