Herbs, perennial, densely caespitose, emerging from a slender branching rootstock; all vegetative parts very fragile when dried and with a loose indumentum of soft hairs, 0.5-0.8 mm, ± straight and spreading, on upper leaf surface slightly retrorse. Stems ascending or erect, 5-10 cm tall, 4-angled, hairy, with 12-18 internodes, increasing in length from 2-8(-15) mm upward, with some short vegetative lateral branches from middle region to inflorescence base. Leaves in whorls of 4; blade thinly papery and remaining ± greenish when dried, ovate to broadly lanceolate, 5-8 × 2.5-3.5 mm, loosely hairy on both sides and marginally, base attenuate, margins flat or slightly revolute, apex acute to apiculate; principal veins 3, palmate, lateral weak. Inflorescences terminal, often with 3 cymes, each with 3-5 flowers; bracts few and ± reduced; peduncles 4-5 mm and pedicels 0.5-3 mm, glabrescent, somewhat elongated and divaricate in fruit. Flowers hermaphroditic. Ovary ovoid, ca. 0.5 × 0.3 mm, with still undeveloped appressed hairs. Corolla greenish white, rotate, ca. 1.5 mm in diam., with 4 triangular and acute to slightly apiculate lobes. Mericarps 0.8-1 mm, with spreading uncinate trichomes ca. 0.25 mm. Fl. and fr. Jul-Sep.
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