Viola rossii : {Japanese Name : Akebono Sumire}
Viola rossii
Yamanasi / May 3, 2005 alt.=1,180m
Viola rossii Viola rossii
Yamanasi / April 30, 2011 alt.=1,000m
Viola rossii Viola rossii
Nagano / May 28, 2004 alt.=1,665m
Viola rossii
Viola rossii Viola rossii
Kanagawa / May 1, 2010
Viola rossii Viola rossii
Viola rossii Viola rossii
  • Gunma / May 2, 1999 Mt. Haruna
  • Tokyo / April 15, 2001 Mt. Takao
Few kind of 'wild violet' blooms on a bright hill here.
A large-patterned flower is the greatest feature at a glance.
The flower color, too, is different from the general violet, being fair.
Viola rossii Viola rossii
Nagano / May 3, 1999 Togakusi Vil.
Section Vaginatae W. Becker
Scientific Name Type species Viola rossii Hemsley ex Forbes et Hemsley, : {Akebobo Sumire} Published in: F. B. Forbes & W. B. Hemsley, J. Linn. Soc., Bot. 23:54. (1886)
Viola rossii f. atro-purpurea (Nakai) F.Maek., : {Kurobana Akebobo Sumire} Published in: Enum. Spermatophytarum Japon. 3: 215 (1954)

Viola rossii f. lactiflora (Nakai) Hiyama ex F.Maek., : {Sirobana Akebobo Sumire} Published in: Enum. Spermatophytarum Japon. 3: 215 (1954)
Viola franchetii H.Boissieu Published in: Bull. Soc. Bot. France 47:321. (1901)
Viola matsumurae Makino Published in: Bot. Mag. (Tokyo) 16:134. (1902)
Viola rossii f. longifolia Hashimoto & Serizawa
Origin Viola rossii : Originated from a person's name "H. J. Ross (1820-1902)", British plant collector.
Common names 【Chinese】辽宁堇菜 liao ning jin cai、【Korean】 고깔제비꽃
Stalk Form The individual leaves and flowering stalks emerge directly from the rootstock.
Habitat Bright and dry forest and forest edge. They are found on the slope where fallen leaves piled up (As the photograph).
Distribution Japan domestic Distributed over the inland area from the Hokkaido southern part to Kyushu central part. Comparatively, it is few in western Japan.
Japan overseas Distributed from the Korean Peninsula, China to the Russian border.
Flower Shape The large wheel of the soft-image flower, which is pink roughly in the circularity of the whole flower is characteristic.
Color Basically, color is pink. But, there is little change in color from near white color to red bean color. The flower stem is brownish.
Spur Short and thick.
Season Normal.
Stigma Inverted triangle.
Aromatic Some are fragrant and some are not.
Others Size of the petals are all approximately equal. Sepals do not have large cuts. Appendages of the sepals are whole edge.
Leaf Shape Sharp pointed heart or circular heart. The base is heart-shaped.
Color Light green. On the surface, very short hair grows. Fine hair on the back side is said to disappear after flowers.
Others Finally expand after flowers.
Seed Shape Large. Inverse egg shape.
Color Seed: white.
Others Fruits have brown spots.
Characteristics of roots Tthick and white.
Endangered Information Akita:ThreatenedⅠ, Saitama:Near threatened, Fukui:ThreatenedⅡ, Siga:ThreatenedⅠ, Kyoto:ThreatenedⅡ, Osaka:ThreatenedⅠ, Nara:ThreatenedⅠ, Hyogo:ThreatenedⅡ, Tottori:Near threatened, Yamaguchi:ThreatenedⅡ, Kochi:ThreatenedⅠ, Fukushima:ThreatenedⅠ, Kumamoto:Near threatened, Nagasaki:ThreatenedⅠ
Type Specimen China (Lectotype)
Chromosome Number 2n=24
Reference Information
Others Viola vaginata grows in with the side of Japan Sea, Viola rossii grows in with the inland area, Viola bisseti grows in with Pacific Ocean side.

A thick stem grows from between the dead leaves, and a large sinking pink flower will be blooming. Vaginatae have common leaf characteristics.

Viola rossii(Leaf) Viola rossii(Leaf)

Petiole is also long and thick, but rises diagonally during the flower season, flowers extending vertically are conspicuous unilaterally. Even when the flowers are completely opened, the leaves are not sufficiently expanded, they remain curled like a paper wrapping a bouquet.

Viola rossii(Leaf)

It is distributed around "Saitama" from "Nagano" "Gunma". When I found it for the first time in Gumma, I was very happy, and I was impressed with "There is also a violet with such a big image!". After that, I saw in Nagano were even bigger. Unfortunately, both Gunma and Nagano had different shades from the flowers we saw in the pictorial book, and they were slightly bluish. 1999/10/22

The picture on the right is leaves of Viola rossii from Gunma at stage when a little time has passed since flowering. The surface should be hairless, but fine hair is visible. Of course, it is not as comfortable as the back of a lot of hair, but there are white fine hair sparsely around the leaf vein. 2016/01/09

Viola rossii
Iwate / May 14, 2011

 (1999/10/22) Latest Update 2024/02/03 [655KB]

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