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Project Name Data (Last Modified On 7/24/2009)

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14. Eutrema japonicum (Miquel) Koidzumi, Fl. Symb. Or. Asiat.: 22. 1930. Lunaria japonica Miquel, Ann. Mus. Bot. Lugduno-Batavi 2: 74. 1866; Wasabia japonica (Miquel) Matsumura, Ind. Pl. Jap. 2: 161. 1912; TYPE: Japan, Siebold s.n. (holotype, U).

Cochlearia wasabi Siebold, Verh. Batav. Genootsch. Kunst. Wet. 12: 54. 1832, nom. nud; Eutrema wasabi (Siebold) Maximowicz, Bull. Acad. Imp. Sci. Saint-Pétersbourg 17: 283. 1873; Alliaria wasabi (Siebold) Prantl in Engler & Prantl, Natur. Pflanzenfam. 3(2): 168. 1890; Wasabia wasabi (Siebold) Makino, J. Jap. Bot. 8: 35. 1932.

Eutrema okinosimense Takenouchi in Fukouka Hakubuts. Zasshi (Edit. Ann. Soc. Hist.-Nat. Fukuok.) 1: 369. 1935. TYPE: Japan, xx (holotype, xx).

Wasabia pungens Matsumura, Bot. Mag. (Tokyo) 13: 71. 1899. nom. illeg. because the earlier published Lunaria japonica is listed as a synonym.

Wasabia koreana Nakai, J. Jap. Bot. 11: 150. 1935; Eutrema koreana (Nakai) K. Hammer, Kulturpflanze 34: 98. 1986.

     Herbs, perennial, glabrous or sparsely pilose on upper parts, with a fleshy rhizome to 2 cm in diam. Stems 20-60(-75) cm tall, erect to decumbent, simple. Basal leaves rosulate; petiole (6-)10-20(-26) cm, dilated at base; leaf blade cordate to reniform, (2.5-)6-15(-20) ´ (3-)6-18(-22) cm, base cordate, margin dentate, denticulate, shallowly crenate, repand, or subentire, with distinct apiculate callosities terminating ultimate veins, apex rounded to obtuse; middle cauline leaves with petioles 1-5(-8) cm; leaf blade broadly ovate to ovate-cordate, 1.5-4(-6) ´ 2-4(-6) cm, palmately veined, base and margins as basal leaves, apex acute. Raceme bracteate throughout or only basally, lax, elongated in fruit; fruiting pedicels ascending to divaricate, slender, 1-3.5(-5) cm. Sepals oblong, 3-4 ´ 2-2.5 mm, deciduous; petals white, oblong-spatulate, 6-8(-9) ´ 2-3 mm; filaments white, 3.5-5 mm; anthers oblong, 0.6-0.8 mm; ovules 6-8 per ovary. Fruit linear, 1-2 cm ´ 1.5-2 mm, terete, torulose; valves with an obscure midvein; gynophore (1-)2-5 mm; septum usually complete; style 2-3 mm. Seeds oblong, plump, 2-3 ´ 1-1.5 mm.

Flowering: Mar-May.

Habitat: wet areas along streams in mountains.

Elevation: 0-2,500 m.

Distribution: Japan, Korea, Russia (Far East), naturalized in Taiwan.




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