Shusuran - Shusuran

Japanese: シュスラン - しゅすらん
Shusuran - Shusuran

A perennial plant of the orchid family (APG classification: Orchidaceae). Also known as velvet orchid. The stems are string-like and crawl along the ground, with roots coming out from each node at the bottom. The upper part slopes upwards and has four or five leaves. The leaves are evergreen and glossy, with a prominent white stripe in the middle. The name is derived from the leaf color. From August to October, five or six flowers bloom on one side of the tip of the stem. The flowers are pale pink and just under 1 cm in diameter. They grow on the forest floor of evergreen forests, and are distributed from the Kanto region and west of Honshu to Kyushu, as well as the Korean peninsula, Taiwan, and mainland China.

The genus Persea is distinguished from closely related genera by characteristics such as the absence of wing-like structures on the stamens, the lack of split stigmas, and the dense hairs on the lip. There are about 40 species, mainly found in temperate and tropical regions, and 10 other species found in Japan, including Persea gracilis, Persea gracilis, and Persea gracilis.

[Ken Inoue May 21, 2019]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

ラン科(APG分類:ラン科)の多年草。ビロードランともいう。茎は紐(ひも)状で地表をはい、下部の各節から根を出す。上部は斜上し、葉を4、5枚つける。葉は常緑で光沢があり、中央の白い筋(すじ)が目だつ。名は、いずれも、この葉色に由来する。8~10月、茎の先端の一方に偏って5、6個の花をつける。花は淡紅色、径1センチメートル弱。常緑樹林の林床に生え、関東地方以西の本州から九州、および朝鮮半島、台湾、中国大陸に分布する。

 シュスラン属は、蕊柱(ずいちゅう)に翼状の構造がない、柱頭が分裂していない、唇弁に毛が密生するなどの特徴で近縁の属と区別される。温帯と熱帯を中心に約40種あり、日本にはほかにベニシュスラン、アケボノシュスラン、キンギンソウなど10種分布する。

[井上 健 2019年5月21日]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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