纤草 xian cao

Burmannia pingbienensis H. Li; B. takeoi Hayata.

Plants without chlorophyll, holomycotrophic, flowering when 5-15 cm tall. Stems light blue, slender. Basal rosette leaves absent. Cauline leaves ovate-lanceolate, 2.5-3.5 × 1.5-2.5 mm. Inflorescences 1-3-flowered; bracts ovate-lanceolate, ca. 5 mm. Flowers pedicellate, bluish purple, 8-11 mm. Perianth tube 3.5-5.5 mm; wings conspicuous, 1-2 mm wide; outer tepals ovate-triangular, 1.5-2 mm, margin single; inner tepals orbicular, very small, margin single. Stamens sessile; connectives with an apical crest and a pendent basal spur. Ovary subglobose, 2-3.5 mm. Capsule subglobose. Seeds ellipsoid. Fl. and fr. Jun-Dec.

Wet evergreen forests; 300-1200 m. Guangdong, Guangxi, Hainan, Taiwan, Yunnan [Japan].