Northeastern Asian Flora
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Botrychium robustum (Rupr.) Underw.   (redirected from: Sceptridium robustum (Rupr.) Lyon)
Family: Ophioglossaceae
[Botrychium multifidum var. robustum C.Chr., moreBotrychium rutifolium var. robustum Rupr., Sceptridium multifidum subsp. robustum (Rupr.) R.T.Clausen, Sceptridium robustum (Rupr.) Lyon]
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  • Japan Flora
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Japan Flora: Rather fleshy herb 15-30 cm. high, thinly long-hairy or rarely glabrate; stems with a whitish basal sheath or scale, or with last year’s sterile blade persistent; sterile blade thick-herbaceous, 5-angled in outline, 3- or 4-ternate, 5-10 cm. long, 6-12 cm. wide, petiolate, the segments obtuse, the ultimate ones ovate, lobed, crenulate- to mncronate-toothed, the petiole arising immediately above the base; fertile panicle long-pedunculate, pyramidal, dense, 4-8 cm. long.  Aug.-Oct.

Hokkaido, Honshu (mountains of centr. and n. distr.). Korea, Manchuria, Ussuri, Sakhalin, Kuriles, Kamchatka to Alaska.

Botrychium robustum
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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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