Triurideae
A natural order of very slender, white or discoloured herbs, inhabiting tropical forests of Asia and America. Flowers minute, racemose or spicate, monaecious or diaecious, rarely unisexual; pedicels bracteate; perianth three, four, six, or eight-parted, hyaline; segments connate at base, valvate, the tips often caudate; stamens few, various in number, sessile in the base of the perianth; anthers four-celled, two-valved. Carpels many; ripe ones obovoid, coriaceous and indehiscent, or two-valved, one-seeded. Leaves wanting, or bract-like, alternate, and nerveless. Stem simple, rarely divided, filiform, straight or flexuous, erect. The order comprises only a couple of genera--Sciaphila and Triuris--and about sixteen species.