Costus oblongus S.Q.Tong
  • Acta Phytotax. Sin.

This taxon is accepted by Costaceae
Notes: More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0

General Description

Stems 1.8--3 m. Leaf sheaths green, apex densely white pubescent and white long ciliate; leaf blade subsessile, elliptic or lanceolate-elliptic, 18--33 × 6--14 cm, adaxially glabrous, abaxially densely villous, base rounded or cuneate, apex acuminate. Inflorescences terminal, ovoid or broadly so, 4--13 × 3--9 cm; bracts bright red, oblong, 2.8--4 × 1.2--1.6 cm, densely villous, apex breaking into fibers when old; bracteoles pink, narrowly oblong, plicate, ca. 3.2 cm. Calyx pink, ca. 2 cm, densely pubescent, apex 3-toothed; teeth acute and ciliate at apex. Corolla tube white, ca. 1 cm; lobes subequal, central one elliptic, ca. 4.5 × 2.2 cm, apex red spotted. Labellum white, trumpet-shaped, 5--6 cm in diam., margin crisped. Stamen elliptic, ca. 4.5 × 1.5 cm; anther narrowly elliptic, inserted distally on stamen. Ovary red, densely white hairy. Fl. Aug.

 Information From

World Flora Online Data. 2017.
  • A CC0 1.0 Universal (CC0 1.0).
Flora Of CHina @
'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • B Missouri Botanical Garden
World Flora Online consortium
World Flora Online Data. 2018.
  • C CC0 1.0 Universal (CC0 1.0).