Comesperma Labill.
Keel not crested Comesperma
Stems erect
Petals blue. Leaves reduced to scales on upper part of stem or absent except towards the base
Capsule narrowed into a basal stipe. Outer sepals almost as long as the petaloid ones. Filaments free above the middle. Plant with woody base and erect almost leafless stems up to 60 cm high. Widespread. Wet sandy soil. Fl. summer Comesperma defoliatum
Capsule nearly orbicular, not narrowed into a basal stipe. Outer sepals half to two-thirds as long as petaloid ones. Filaments free above the middle. Plant usually with a woody stock and lax straggling almost leafless stems up to 20 cm long. Widespread. Heath and DSF. Ss. Fl. summer Comesperma sphaerocarpum