Kiyosumi moray eel - Kiyosumi moray eel

Japanese: キヨスミウツボ - きよすみうつぼ
Kiyosumi moray eel - Kiyosumi moray eel

A perennial plant of the Orobanchaceae family (APG classification: Orobanchaceae). It parasitizes Hydrangea macrophylla and Berry's bean. It is white all over and 5-10 cm tall. It is densely covered with small, scaly leaves. In June and July, 5-10 flowers bloom upwards in a head-like cluster at the end of the stem. The corolla is white at first, then yellow, long and tubular with five lobes at the end. It grows in forests in the hilly and mountainous regions of Hokkaido, Honshu, Shikoku, and Kyushu, and is also found in Sakhalin, Ussuri, the Korean Peninsula, and China. It is named after Mt. Kiyosumi in Chiba Prefecture, and Utsubo because the shape of the flower resembles a quiver for a bow and arrow.

The genus Acanthurus has flowers in a head shape and two separate calyxes. There is one genus and one species found in East Asia.

[Hideo Takahashi September 17, 2021]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

ハマウツボ科(APG分類:ハマウツボ科)の多年草。タマアジサイやムラサキシキブなどに寄生する。全体が白色で高さ5~10センチメートル。密に小さな鱗片葉(りんぺんよう)に覆われる。6~7月、茎の先に頭状に集まって5~10個の花を上向きに開く。花冠は白色でのちに黄色になり、長い筒状で先は5裂する。北海道、本州、四国、九州の丘陵帯から山地帯の林内に生え、樺太(からふと)(サハリン)、ウスリー、朝鮮半島、中国にも分布する。名は、千葉県の清澄(きよすみ)山にあるのでいい、ウツボは花形が弓矢を入れる靫を思わせるのでいう。

 キヨスミウツボ属は花は頭状につき、萼(がく)は2片で離生する。東アジアに1属1種が分布する。

[高橋秀男 2021年9月17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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