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Perennial herb with opposite leaves and branches. Leaves entire. Flowers bibracteolate in shortly pedunculate elongate bracteate spikes which are terminal on the stem and branches, each bract subtending a single flower; bracts persistent, hyaline; bracteoles round, hyaline, falling with the flower. Perianth-segments 5, somewhat spreading at anthesis, later closing together and considerably indurate at the base; upper tepal narrowest and longest, 1–3-nerved. Stamens 5, shorter than the perianth, shortly monadelphous at the base, alternating with spathulate pseudostaminodes furnished with fimbriate dorsal scales; anthers bilocular. Ovary with a single ovule pendulous on a curved funicle; radicle ascending; style filiform; stigma capitate. Capsule thin-walled, tightly enclosing the seed, falling together with the persistent perianth and bracteoles. Endosperm copious.
Flowers bibracteolate in shortly pedunculate, elongate, bracteate spikes which are terminal on the stem and branches, each bract subtending a single flower; bracts persistent, hyaline; bracteoles more or less circular, hyaline.
Stamens 5, shorter than the perianth, shortly monadelphous at the base, alternating with spathulate pseudostaminodes furnished with fimbriate dorsal scales; anthers bilocular.
Perianth segments 5, somewhat spreading at anthesis, later closing together and considerably indurate at the base; upper tepal narrowest and longest, 1–3-nerved.
Capsule thin-walled, tightly enclosing the seed, falling together with the persistent perianth and bracteoles.
Ovary with a single ovule pendulous on a curved funicle, radicle ascending.
Perennial herb with opposite leaves and branches.
Style filiform, stigma capitate.
Endosperm copious.
Leaves entire.
