Annual; stems erect or ascending, 10-25 cm tall, bearing downwardly curved hairs; internodes 2 cm or more long. Lvs paired and in short axillary fascicles, linear-subulate from broad connate scarious ciliate base, acute or minutely acicular, (5)-7-15 × 0.5-1 mm. Peduncles 0. Bracts leaflike, slightly > fls. Fls axillary, solitary or clustered, sessile or shortly pedicellate. Sepals 5, linear with very narrow scarious margins, at fruiting slightly spreading and 1-11/2× the 10-ridged perigynous zone; whole fr. 4-5 mm long. Stamens up to 10, included in calyx.