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''Roscoea kunmingensis'' is a perennial herbaceous plant native to the mountains of China, being found in Yunnan. Most members of the ginger family (Zingiberaceae), to which it belongs, are tropical, but ''R. kunmingensis'', like other species of ''Roscoea'', grows in much colder mountainous regions.〔 == Description == ''Roscoea kunmingensis'' is a perennial herbaceous plant. Like all members of the genus ''Roscoea'', it dies back each year to a short vertical rhizome, to which are attached the tuberous roots. When growth begins again, "pseudostems" are produced: structures which resemble stems but are actually formed from the tightly wrapped bases (sheaths) of its leaves.〔 ''R. kunmingensis'' is one of the smaller members of the genus; plants are 8–12 cm tall, with about four leaves consisting only of a sheath and further leaves with blades 8–20 cm long by 2.3–3 cm wide (rarely to 4.2 cm wide). The blade is smooth (glabrous). There is a small ligule, extending to about 3 mm, at the junction of the leaf sheath and blade.〔 In its native habitats, ''R. kunmingensis'' flowers between May and June. The stem (peduncle) of the flower spike (inflorescence) is hidden by the leaf sheaths. The spike has bracts, between 0.5 cm and 3.5 cm in length, which in some forms may enlarge to up to 8 cm after flowering.〔 There are only one or two flowers per spike. Each flower has the typical structure for ''Roscoea'' (see the diagrams in that article). There is a tube-shaped outer calyx. Next the three petals (the corolla) form a tube which is 3.5–4 cm and terminates in three lobes, an oblong upright central lobe, about 1.5–2 cm long by 6–8 mm wide, and two side lobes, narrower than the central lobe. Inside the petals are structures formed from four sterile stamens (staminodes): two lateral staminodes form what appear to be upright petals, about 1.4 cm long; two central staminodes are fused to form a lip or labellum, about 1.6–2.1 cm by 1–1.5 cm, which is deeply divided at the end into two lobes. The labellum has white lines at its base.〔〔 The form in cultivation has purple flowers.〔 The single functional stamen has an anther about 4 mm long, with about 3 mm long spurs formed from the connective tissue between the two capsules of the anther. The cylinder-shaped ovary is about 3–3.5 cm long.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Roscoea kunmingensis」の詳細全文を読む スポンサード リンク
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