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PLANT FAMILY: Costaceae
BOTANICAL NAME: Cheilocostus viridis
FORMAL SCIENTIFIC NAME: Costus viridis S.Q.Tong
Asian Costus species, listed as an accepted name at The Plant List: "The record derives from WCSP which reports it as an accepted name (record 234817?) with original publication details: Acta Phytotax. Sin. 27: 289 1989." They still have it listed under the genus Costus.
Described in Flora of China, Vol. 24 (Flagellariaceae-Marantaceae). Science Press & Missouri Botanical Garden. Costus viridis S.Q.Tong, Acta Phytotax. Sin. 27: 289. 1989.
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Stems 2-3 cm. Leaf sheaths green, white sericeous; leaf blade subsessile, ovate or elliptic, 24-30 Ã— 6-9 cm, adaxially glabrescent, abaxially densely sericeous, base cuneate or round-ed, apex shortly acuminate. Inflorescences terminal, broadly ovoid, ca. 6 Ã— 5 cm; bracts imbricate, green, ovate or broadly so, 3.5-4 Ã— 1.8-2.4 cm, leathery, margin membranous, apex brown, sharply pointed; bracteoles ovate, ca. 2.5 cm. Calyx green, ca. 2 cm, leathery, apex 3-lobed; lobes deltoid, golden, rigid, and glabrescent at apex. Corolla tube white, ca. 1 cm; lobes pink, central one elliptic, ca. 6 Ã— 3.2 cm, lateral one ovate. Labellum pink, trumpet-shaped, 5-5.5 cm in diam., margin crisped. Stamen oblong, ca. 5 Ã— 1.8 cm, glabrescent with pub-escent abaxial part. Ovary green, glabrescent. Fl. Jun.
Moist places in forests; ca. 1000 m. WYunnan (Wanding Zhen).