Carex subg. Vignea is a subgenus of the sedge genus Carex, containing around 300 of the 2000 species in the genus. Its members are characterised by having bisexual, sessile spikes, where the female flowers have two stigmas each.
Carex subg. Vignea has been repeatedly found to be monophyletic in molecular phylogenetic analysis, with Carex gibba (which, exceptionally for the section, has three stigmas per female flower) as the sister group to the rest of the subgenus. It contains the following sections:
Carex sect. Ammoglochin Carex sect. Baldenses Carex sect. Bracteosae Carex sect. Chordorrhizae Carex sect. Deweyanae Carex sect. Dispermae Carex sect. Divisae Carex sect. Echinochloomorphae Carex sect. Foetidae Carex sect. Gibbae Carex sect. Glareosae Carex sect. Grallatoriae Carex sect. Heleoglochin Carex sect. Holarrhenae Carex sect. Incurvae Carex sect. Inversae Carex sect. Macrocephalae Carex sect. Multiflorae Carex sect. Ovales Carex sect. Phaestoglochin Carex sect. Phleoideae Carex sect. Physodeae Carex sect. Physoglochin Carex sect. Potosinae Carex sect. Remotae Carex sect. Stellulatae Carex sect. Stenorhynchae Carex sect. Thomsonianae Carex sect. Vulpinae
See also List of Carex species
References