雙黃花菫菜

Viola kanoi Sasaki in Trans. Nat. Hist. Soc. Form. 19:104, 1929. Viola tayemonii Hayata, Icon. Pl. Form. 6:3, 1916.

Perennial herb; rhizome erect to ascending more or less stout, bearing stems and leaves at apex. Stem up to 22 cm, slender ascending to erect Leaves 0.8-2 cm long, 1.5-4 cm broad,reniform to broadly ovate more or less deeply cordate at base, rounded to obtuse at apex, subcrenate to repand-dentate on the margin, glabrous beneath and hirsute above, subcoriaceous; petioles 0.5-5 cm long, slender. Stipules 2-6 mm long, 1.5-3 mm broad, ovate to oblong, acute at apex, sparsely denticulate to almost entire, glabrous, free. Flowers 1-1.5 cm across yellow with brownish-purple veins; peduncles 1-4 cm long, slender, exceeding leaves. Sepals 5-6 mm long, 1-1.5 mm broad, linear to linear-oblong, acute at apex, glabrous or short ciliate on margin; appendages up to 0.5 mm long, rounded, glabrous. Petals oblong to obovate, basal longest, rounded at apex, laterals beardless; spurs 1-1.5 mm long, equalling or slightly exceeding calycine appendages, cylindrical, obtuse. Styles 1.2-1.5 mm long, slightly geniculate at base, clavate distally, with two lateral lobes fused behind at apex, no stigmatic beak. Capsules 4-6 mm long, ellipsoid, glabrous. Seeds ovoid, c. 2 mm long. Chromosome number: n = 6.

Taichung : Hsuehshan, Huang 7255, Masamune 1277, Wang 4359, 4360, 4361, 4631, 4646,Kano s.n. Jul. 16, 1929 (Holotype of V. kanoi, TAIF!); Hsuehshanpeifeng, Wang, Huang & Yang 4631, 4646; Nanhunanfeng, Wang 3576. Nantou : Hohuangshan, Lin s.n. May 31, 1985, Wang 5113. Ilan : Nanhutashan, Suzuki, Fukuyama & Simada 17477, 17787, 18115, Wang 3573; Bunnakkei, Fukuyama 4664, Wang 3564; Tatzousuinanshi, Wang 3571.

Circumboreal widely distributed in the cooler regions and high mountains of the Northern Hemisphere.