Ruellia coerulea

We encountered this species in Bolivia at roadside in secondary, disturbed habitat bordering cultivated fields in an area that was very arid and hot. Dead cayman nearby added to the ambiance.

Suffrutescent herb to 1 m, extremely abundant, corollas mostly purple but some plants producing flowers nearly white in color; plants formerly ascribed to Ruellia coerulea have be synonymized with Ruellia simplex, but this is the wild type and it is SO very different from Ruellia simplex.

Wild collected, Bolivia, Tripp #6020 w/ Luján, and Clark (COLO); Photos by Manuel Luján; Blog post by Dina Clark

Ruellia puri

We encountered this species in Bolivia (Sep 2016) in the foothills of the Andes where it was locally abundant in the understory of secondary forests. It is also known from central Brazil and areas of Ecuador and Peru. Distinguishing character is the strongly sigmoid – curved lower portion of the corolla. Flower color ranges from lavender to pink. In places, it grew symmetrically with Ruellia brevifolia, resulting in a possible hybrid between the two (Tripp 5971).

Wild collected, Bolivia, Erin Tripp #5975, 5984, 6002 w/ Manuel Luján, and Dina Clark (COLO); Photos by Manuel Luján; Blog post by Dina Clark