KEY TO THE VARIETIES

1	Leaves usually much exceeding the stem. Inflorescence stramineous. Utricles strongly spongy 3-5-ribbed on each face Carex cruciata var. cruciata
1'	Leaves usually as long as the stems or shorter. Inflorescence ferrugineous. Utricles more or less distinctly 3-7-nerved on each face Carex cruciata var. rafflesiana