cyanastrum
Arnold Trachtenberg (Mon, 06 Jun 2005 18:08:18 PDT)

"Herbs with non truncated corm, bearing leaf and inflorescence
separately, each surrounded by different cataphylls; leaves usually
solitary, basal, petiolate, with + or - cordate base; inflorescence a
raceme; bracts and bracteoles sometimes absent; tepals blue; stamens 6,
equal; pollen non operculate; ovary semiinferior, with sunken style;
ovules 2 per carpel; seeds large, ovoid, yellow to brown, deeply pitted
with 'chalazosperm'. Three spp., topical Africa."

"The Families and Genera of Vascular Plants" edited by Kubitzki

Arnold