Section | Trigonocarpae Gordon | |
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Scientific Name | Type species | Viola thibaudieri Franch. et Savat. Published in: Enum. pl. Jap. 2:290. (1878) |
Variety | ||
Form | ||
Synonym | ||
Origin | thibaudieri : It originates in the name of a person. : Thibaudier (Fr.)., (He had been working at Yokosuka in the Meiji period.) | |
Common names | ||
Stalk Form | A flower scape is extended from a stalk, and a flower blooms from each scape. The stalk becomes a height of about 30-40cm in summer. |
|
Habitat | It grows naturally in a bright woods. It tends to be overcrowded in the woods. | |
Distribution | Japan domestic | Very limited. A Nagano endemic species. In fact, the habitat is only one place. |
Japan overseas | ||
Others | ||
Flower | Shape | Small size (about 2cm). A petal is thinner and there is hair in a side valve. |
Color | White. A purple article is in the labial palp. | |
Spur | ||
Season | ||
Stigma | ||
Aromatic | ||
Others | ||
Leaf | Shape | The leaf resembles a slim knotweed. It looks like a plant unlike the violet genus. |
Color | Both sides are light green. | |
Others | Leaf and petiole are continuously integrated. | |
Seed | Shape | Medium size. Round spindle shape. |
Color | Pale brown. | |
Others | ||
Characteristics of roots | The rhizomes are massive. Adventitious buds may occur and multiple above-ground stalks may stand up. | |
Endangered Information | 【Threatened IB(EN)】, Nagano:ThreatenedⅠ(1A) | |
Type Specimen | Shinano | |
Chromosome Number | 2n=20 | |
Reference Information | ||
Others | In early autumn (September), the aerial parts wither and form overwintering sprouts. |