kingdom Plantae - plants » divisio Magnoliophyta - flowering plants » class Rosopsida - eudicots » order Malpighiales » family Violaceae » tribus Violeae > genus Viola > Viola sect. Plagiostigma Godr. > Viola subsect. Adnatae W. Becker
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Synon.: Viola stenocentra Hayata ex Nakai
Common name: 紫花地丁 zi hua di ding
Description: Herbs perennial, acaulescent, 4-14 cm tall, to 20 cm tall at fruiting. Rhizome erect, brownish, short, 4-13 mm, 2-7 mm in diam., densely noded, with several yellowish or whitish rootlets. Leaves numerous, basal, rosulate; stipules glaucous or greenish, 1.5-2.5 cm, membranous, 2/3-4/5 adnate to petioles, free part linear-lanceolate, margin remotely glandular fimbriate-denticulate or subentire; petiole usually 1-2 × exceeding blades at anthesis, very narrowly winged in upper part, to 10 cm at fruiting, broadly winged in upper part, puberulous or glabrous; upper blades oblong-lanceolate or triangular-ovate, usually smaller than lower ones; lower ones oblong, narrowly ovate-lanceolate, or oblong-ovate, 1.5-4 × 0.5-1 cm, both surfaces glabrous or puberulous, sometimes only puberulous along veins abaxially, base truncate or cuneate, rarely slightly cordate, margin shallowly crenate, apex obtuse; blades accrescent at fruiting, to 10 × 4 cm. Flowers purple-violet or purplish, rarely white, light colored and purple-striate at throat, medium-sized; pedicels usually numerous, equaling or exceeding leaves, slender, glabrous or puberulous, 2-bracteolate near middle; bracteoles linear. Sepals ovate to ovate-lanceolate, 3-7 × 0.7-1.8 mm, apex acuminate; appendages short, 1-1.5 mm, 1/2 to 1/6 as long as sepal, glabrous or sparsely pubescent, apex rounded or denticulate. Petals obovate or oblong-obovate, lateral ones 1-1.2 cm, inside glabrous or rarely lightly bearded, anterior one 1.3-2 cm (spur included), inside purple-veined; spur tubular, 3-8 mm, 2-5 × as long as calycine appendages; anthers ca. 2 mm, appendage of connectives ca. 1.5 mm; spur of 2 anterior stamens tubular, 3-6 mm, apex slender. Ovary ovoid, glabrous; styles clavate, slightly exceeding ovary, base slightly geniculate; stigmas triangular with slightly thickened and raised margins on lateral sides and abaxially, slightly flat at top, shortly beaked in front. Capsule ellipsoid, 5-12 mm, glabrous. Seeds yellowish, ovoid-globose, ca. 1.8 mm. Fl. Apr-May, fr. May-Sep. 2n = 24*, 48.
Distributional Range: Native Asia-Temperate MONGOLIA: Mongolia CHINA: China [Anhui Sheng, Fujian Sheng, Gansu Sheng, Guangdong Sheng, Guangxi Zhuangzu Zizhiqu, Guizhou Sheng, Hainan Sheng, Hebei Sheng, Heilongjiang Sheng, Henan Sheng, Hubei Sheng, Jiangsu Sheng, Jiangxi Sheng, Jilin Sheng, Liaoning Sheng, Nei Mongol Zizhiqu, Ningxia Huizi Zizhiqu, Shaanxi Sheng, Shandong Sheng, Shanxi Sheng, Sichuan Sheng, Yunnan Sheng, Zhejiang Sheng] EASTERN ASIA: Japan, [Honshu, Kyushu, Shikoku] Korea, South, Taiwan Asia-Tropical INDIAN SUBCONTINENT: India [Manipur, Uttar Pradesh] INDO-CHINA: Cambodia, Laos, Vietnam MALESIA: Indonesia, [Sulawesi, Jawa, Lesser Sunda Islands, Sumatera] Philippines [Luzon, Mindanao]
Habitat: Fields, grassy places on mountain slopes, forest margins, thickets, roadsides; below 1700 m.
References:
Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
Iwatsuki, K. et al. 1993-. Flora of Japan. Note: mentions
Li, H. L. et al., eds. 1975-1979. Flora of Taiwan.
Personal Care Products Council. INCI
Sharma, B. D. et al., eds. 1993-. Flora of India.
Steenis, C. G. G. J. van, ed. 1948-. Flora malesiana.
Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).