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Jeffersonia dubia

Jeffersonia dubia

Jeffersonia dubia

Jeffersonia dubia

Jeffersonia dubia

Jeffersonia dubia

Jeffersonia dubia

Jeffersonia dubia

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ƒƒM‰Èƒ^ƒcƒ^ƒ\ƒE‘®‚Ì‘½”N‘‚ŁAŠw–¼‚Í Jeffersonia dubiaB‰p–¼‚Í Twin leafB 
Twin leaf (Jeffersonia dubia) belongs to the Berberidaceae (the Barberry family). It is a perennial herb that is distributed in the northern part of the Korean Peninsula, northeast China, and Amur region. This herb grows on the forest floors and forest edges of the mountainous area, and up to a height of about 20 cm. The leaves are round, the tip is hollowed and basal. The brilliant blue-lavender flowers bloom from April to May. The name was derived from the warship "Tatsuta", because of this crew member brought back this plant, during the Russo-Japanese War. Another name is also called "Itomaki-gusa (thread winding grass)", because of some leaves are rolling without developing even when flowering. 
[ãE’†‚P] ‘åãŽs’ߌ©‹æuç‚­‚₱‚̉Ԋفv‚ɂāA2003”N11ŒŽ14“úŽB‰eB
[’†‚Q] “¯ã‚ɂāA2004”N09ŒŽ16“úŽB‰eB
[’†‚RE’†‚S] “¯ã‚ɂāA2005”N08ŒŽ03“úŽB‰eB
[’†‚UE‰º] “¯ã‚ɂāA2017”N09ŒŽ15“úŽB‰eB
[’†‚T] ’·–쌧ˆÉ“ߎs¼t‹ßu‚©‚ñ‚Ä‚ñ‚ςσK[ƒfƒ“v‚ɂāA2006”N04ŒŽ04“úŽB‰eB

Shu Suehiro
shu@botanic.jp