Halongia purpurea Jeanplong; Thysanotus chrysantherus F. Mueller.

Rhizome short, stout. Leaves many, tufted, narrowly linear or flattened filiform, 15--20 cm × ca. 1 mm, rigid, glabrous. Scape erect, 20--30 cm, slender, bearing a terminal umbel. Umbel 4--10-flowered; bracts ovate or lanceolate, 3--5 mm, membranous. Pedicels 1--1.5 cm, articulate near base. Tepals blue, suboblong, 7--8 × 1--2 mm, membranous, 3--5-veined; inner ones sometimes fimbriate-denticulate at margin proximally. Stamens 4--5 mm; outer anthers ca. 1.2 mm, inner ones ca. 2.2 mm. Capsule ellipsoid, ca. 4 × 3 mm. Seeds subglobose, ca. 1 mm. Fl. and fr. Jun--Jul.

SE Fujian, Guangdong, Guangxi, Taiwan [Indonesia, Malaysia, Philippines, Thailand, Vietnam; Australia].