Herbs perennial. Stems nearly tufted, erect, quadrangular, (5--)10--20 cm tall, slender, internodes shorter than leaves, glabrous except sparsely shortly ciliate basally. Leaves linear, 2--3(--4.5) cm × 1--2 mm, both surfaces glabrous, midvein conspicuous, abaxially raised, adaxially retuse, base slightly narrowed, apex acute. Flowers 1--8, in sparse terminal cymes; bracts lanceolate, ca. 5 mm, margin membranous. Pedicel erect, 1.5--4(--6) cm. Sepals 5, lanceolate to oblong-lanceolate, 4--5.5 mm, 3-veined, apex acute. Petals 5, 1.5--2 × as long as sepals, 2-cleft nearly to base. Stamens 10; filaments slender. Styles 3, 2--3 mm. Capsule yellow, ellipsoid to ovoid-orbicular, slightly shorter than or subequaling persistent sepals. Seeds brown, compressed, orbicular-reniform, ca. 1 mm, tuberculate. Fl. May--Jun, fr. Jun--Aug. 2n = 26.
More
A herb. It keeps growing from year to year. The stems are tufted and 4 sided. They are 10-20 cm tall. The leaves are narrow and 2-3 cm long by 1-2 mm wide.
Home
