きすみれ (黄菫) [Index] [Back]

Viola orientalis

Viola orientalis

Viola orientalis

Viola orientalis

Viola orientalis

Viola orientalis

Viola orientalis

Viola orientalis

Viola orientalis

わが国の本州、山梨県以西から四国の愛媛県、それに九州に分布しています。山地や草原などに生え、高さは5〜12センチになります。葉は長さ2〜4センチで、根生葉は心形、茎葉は細長い心形から切形になり、両面に微毛があります。3月から5月ごろ、直径1.5〜2センチの明るい黄色い花を咲かせます。唇弁は比較的小さく、距は短いです。別名で「いちげきすみれ(一花黄菫)」と呼ばれます。 
スミレ科スミレ属の多年草で、学名は Viola orientalis。英名はありません。 
"Ki-sumire (yellow-violet)" (Viola orientalis) belongs to the Violaceae (the Violet family). It is a perennial herb that is distributed from Yamanashi prefecture of Honshu west to Ehime prefecture of Shikoku and Kyushu. This herb grows in mountains and grasslands, and up to a height of 5-12 cm. The leaves are 2-4 cm long, basal ones are cordate and cauline leaves are narrow cordate to truncate, and pubescent on the both sides. The bright yellow flower, 1.5-2 cm across, blooms from March to May. The lip is relatively small and the spur is short. It is also called "Ichige-ki-sumire (monanthous-yellow-violet)". 
大分県由布市湯布院町「由布岳」にて、2018年04月27日撮影。 

Shu Suehiro
shu@botanic.jp