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''Roscoea wardii'' is a perennial herbaceous plant occurring from eastern Arunachal Pradesh in India to western Yunnan in China.〔 Most members of the ginger family (Zingiberaceae), to which it belongs, are tropical, but like other species of ''Roscoea'', ''R. wardii'' grows in much colder mountainous regions.〔 ==Description== ''Roscoea wardii'' is a perennial herbaceous plant. Like all members of the genus ''Roscoea'', it grows from a short rhizome, to which the tuberous roots are attached. 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. wardii'' reaches a height of 32 cm. There are three to five bladeless sheathing leaves with pink veins and two to three full leaves, 7–8 cm long by 1.7–4.5 cm wide. At the junction of the blade and sheath there are small transparent structures (ligules), 1–2 mm high. The stem (peduncle) of the flower spike is short, almost absent in some plants. The flowers are typically deep purple in colour, although paler rose-coloured forms are known. Pale green bracts, 3.5–5.5 cm long, surround the base of the flowers. Each flower has the typical structure for ''Roscoea'' (see that article for labelled images). There is a tube-shaped outer calyx, about 3.3–4.5 cm long, which emerges from the surrounding bracts. Next the three petals (the corolla) form a long tube about 4–8 cm long, usually emerging from the calyx, at least when the flowers are mature. The tube terminates in three petal lobes: an upright central lobe and two slightly shorter side lobes. The central lobe is about 2–3.2 cm long by 1.3–2.5 cm wide; the side lobes are considerably smaller, 0.2–0.3 cm long by 0.4–1.4 cm wide. Inside the petals are structures formed from four sterile stamens (staminodes). Two lateral staminodes form what appear to be small petals, about 1.6–2 cm long by 0.7–1 cm wide, including a short narrowed "claw" at the base. Two central staminodes are fused at the base to form a lip or labellum, about 2.2–4.5 cm long by 1.6–4.5 cm wide. The labellum is deeply lobed and has three white lines at the base of each lobe.〔 The single functional stamen has a white anther, about 6–9 mm long, and the typical ''Roscoea'' "spurs" on the filament – blunt-tipped in the case of ''R. wardii''. The three-celled ovary is about 3 cm long when matured with seeds. 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 wardii」の詳細全文を読む スポンサード リンク
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