Primulina crassituba (W.T.Wang) Mich.Möller & A.Weber
Primulina Hance Perennial, acaulescent. Rhizome subterete, erect or ascending, single, in very thick and strong trunks, woody, brown, with conspicuous internodes, up to 30 cm long, 1.0-1.5 (-4) cm in diam. Leaves 6-16 or more, congested at the apex of rhizome, opposite...