A marsh shrublet up to 60 cm (2 ft) or so, intricately branched above, the herbaceous parts entirely glabrous. Branches and branchlets slender, often irregularly contorted, shining chestnut-brown. Leaves 3-nate, 2.5-3 mm long, linear, mostly spreading, often recurved, usually much shorter than the internodes, sulcate, bright green in the living state; petioles red. Flowers, including the peduncles and sepals, rose-pink, 1-to 3-nate, terminal on short branchlets, the ultimate sometimes umbellate; peduncles 1-2 mm long or slightly more; bracts 0.5 mm long, remote. Sepals about 1 mm long, ovate-attenuate, keel-tipped, shortly ciliate. Corolla 3-3.2 long, ovoid-urceolate; lobes erect, acute, about 1/4 as long as the tube. Filaments somewhat sigmoid above; anthers included, about 0.5 mm long, basifixed, cuncate-oblong, scabrid towards the widened base, appendiculate; pore nearly 1/2 as long as the cell; awns 0.3-0.4 mm long, dorsal, scabrid. Ovary subturbinate, densely hispid on the upper part; style included; stigma capitate.
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Sparse but compact shrublet to 30 cm. Flowers small, urn-shaped, pink, hairy.