Northeastern Asian Flora
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Botrychium japonicum (Prantl) Underw.   (redirected from: Sceptridium atrovirens Sahashi)
Family: Ophioglossaceae
[Botrychium atrovirens (Sahashi) M.Kato, moreBotrychium daucifolium var. japonicum Prantl, Botrychium japonicum var. silvicola (Sahashi) M.Kato, Sceptridium atrovirens Sahashi, Sceptridium japonicum (Prantl) Lyon, Sceptridium japonicum var. atrovirens (Sahashi) Seriz., Sceptridium japonicum var. silvicola Sahashi]
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Japan Flora: Stout slighdy hairy herb 25-40 cm. high; stems naked at base (rarely with an old persistent frond attached); sterile blade herba­ceous, 5-angled in outline, petiolate, 8-15 cm. long, 10-20 cm. wide, 3 or 4 times ternate, the pinnae deltoid or deltoid-ovate, acute to subacuminate,petiolulate, the pinnules oblong-ovate to broadly lanceolate, pinnately lobed to parted, acuminate, aristu- late-toothed, the lowest basal lobe flabellate-orbicular, the peti­oles 5-15(-20) cm. long, stout, green to brownish or yellowish, arising 3-10 cm. above the base of the stem; fertile panicle 7-15 cm. long, yellow-brown to brown, the peduncle erect, rather stout, slighdy longer to twice as long as the sterile blade.  Sept.-Nov.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu.

Botrychium japonicum
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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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