Large primrose - Large primrose

Japanese: オオサクラソウ - おおさくらそう
Large primrose - Large primrose

A perennial plant of the Primulaceae family (APG classification: Primulaceae). The stem is about 20 cm tall, has a short rhizome, and several leaves with long stalks grow at the base. The leaves are palmately divided into seven lobes, have coarse sawtooth edges, and are heart-shaped at the base, connecting to the stalk. In July, a 30 cm-long stem rises from between the leaves, and several purple-pink flowers grow in a ring at the top. The flowers are cherry-shaped, tubular, and about 1.5 cm in diameter. It grows wild in the high mountains of northern Honshu and Hokkaido, and often grows in clusters in sunny, wet areas. Both the stems and leaves are usually hairy, but in Hokkaido there is a particularly hairy variant called Ezo-oosokurasou.

[Tsuneo Torii March 22, 2021]

Primrose
The leaves are palmately divided into seven lobes, with rough sawtooth edges. Around July, flower stalks grow between the leaves, and several purple-red flowers grow in a ring shape at the top of the stalk. ©Shogakukan Photo by Fujio Aoyama ">

Primrose

Main species of the Primulaceae family [specimen illustrations]
©Kanzo Otawa ">

Main species of the Primulaceae family [specimen illustrations]


Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

サクラソウ科(APG分類:サクラソウ科)の多年草。茎は高さ約20センチメートル、短い根茎があり、長い柄のある葉が数枚根際につく。葉は掌状に7裂し、縁(へり)に粗い鋸歯(きょし)があり、基部は心臓形で柄につながる。7月ごろ葉の間から30センチメートルほどの茎を立て、茎頂に紫紅色花を数個輪状につける。花はサクラ形で筒があり、径約1.5センチメートル。本州北部の高山から北海道に自生し、日の当たる湿性地に群生することが多い。茎、葉ともに有毛のものが普通であるが、北海道にはことに毛深い系統の変種があり、エゾオオサクラソウとよばれる。

[鳥居恒夫 2021年3月22日]

オオサクラソウ
葉は掌状に7裂し、縁に粗い鋸歯がある。7月ごろ、葉間から花茎を伸ばし、茎頂に紫紅色花を数個輪状につける©Shogakukan 撮影/青山富士夫">

オオサクラソウ

サクラソウ科のおもな種類〔標本画〕
©大多和鐘三">

サクラソウ科のおもな種類〔標本画〕


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