An additional introduced species of Nuttallanthus (Plantaginaceae) in Australia

Abstract

Nuttallanthus texanus (Scheele) D.A.Sutton (Plantaginaceae) has been identified as occurring in southern Queensland and eastern New South Wales, Australia. This species had not previously been distinguished from Nuttallanthus canadensis (L.) D.A.Sutton. Both species are naturalised and spread by seed. The two species can be distinguished by floral and seed morphological differences.