Northeastern Asian Flora
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Platanthera brevicalcarata Hayata   (redirected from: Tulotis brevicalcarata subsp. yakumontana (Masam.) Efimov)
Family: Orchidaceae
[Habenaria brevicalcarata Fukuy., morePlatanthera brevicalcarata subsp. yakumontana (Masam.) Masam., Platanthera yakumontana Masam., Tulotis brevicalcarata (Hayata) Efimov, Tulotis brevicalcarata subsp. yakumontana (Masam.) Efimov]
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  • Japan Flora
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Japan Flora: Small herb with somewhat thickened, elongate roots; stems 10-15 cm. long; leaves 1-2, nearly radical, oblong to elliptic, 2.5-4 cm. long, 1.5-2 cm. wide, rounded at apex, abruptly narrowed at base; scalelike leaves 1-3, rather large, broadly lanceolate, acute, ascending; racemes 2-5 cm. long, 5- to 20-flowered; bracts lanceolate, acute, 4-7 mm. long; flowers greenish white; sepals white, nearly equal, 1-nerved, narrowly oblong, the dorsal sepal about 3 mm. long, the lateral sepals about 4 mm. long, obtuse, spreading; petals rather thick, broadly semi-ovate, about 3 mm. long, subobtuse, erect, forming a hood with the dorsal sepal; lip oblong-ligulate, somewhat carnose, obtuse, 3.5-4 mm. long; spur 2-3 mm. long, slightly curved, thickened at tip, obtuse. July. High mountains;

Kyushu (Mount Kirishima and high mountains of Yakushima); rare. Formosa.

Platanthera brevicalcarata
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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