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フィールド日記

種子植物

2026.05.05

ハナイバナ

 駐車場の近くにハナイバナが咲いています。道端などによく見られるムラサキ科の一年草または越年草です。和名のハナイバナ（葉内花）は、葉と葉の間に花をつける様子に由来します。

"Hanaibana" plants are in bloom around the parking area. They are annual or winter annual plants in the Boraginaceae family that are commonly found growing along roadsides. The name comes from the way their flowers appear nestled between the leaves.

2026.05.01

オランダミミナグサ

中庭でオランダミミナグサが咲いています。道端などに生えるナデシコ科の越年草です。ヨーロッパ原産の帰化植物で、街中では在来種のミミナグサよりよく見かけます。
"Oranda-Miminagusa" plants are in bloom in the courtyard. They are winter annual plants in the Juncaceae family that are commonly found growing along roadsides. They originally come from Europe and are more often seen in urban areas than the native "Miminagusa."

2026.04.28

イワニガナ

中庭でイワニガナが咲いています。あぜ道などに普通に見られるキク科の多年草です。別名をジシバリ（地縛り）ともいい、横にはう茎から根を下ろしながら広がっていくようすを表しています。
"Iwa-Nigana" plants are in bloom in the courtyard. They are perennial plants in the Asteraceae family that  are commonly found growing along footpaths. They are also known as "Jishibari", a name which comes from their habit of spreading out creeping stems that spread horizontally along the ground.

2026.04.24

スズメノヤリ

 本館前の築山でスズメノヤリが咲いています。道端などに生えるイグサ科の多年草です。和名は花の形が江戸時代の大名行列で用いられた毛槍（けやり）に似ていることに由来します。

"Suzume-No-Yari" plants are in bloom on the artificial hill. They are perennial plants in the Juncaceae family that are commonly found growing along roadsides. The name comes from the shape of the flowers, which resemble the "Keyari" and was used in daimyo's procession during the Edo era.

2026.04.17

コスミレ

竹林でコスミレが咲いていました。林縁などに見られるスミレ科の多年草です。スミレは多くの仲間がいますが、本種は人里周辺で比較的よく見られる種です。
"Ko-Sumire" plants are in bloom in the bamboo forest. They are perennial plants in the Violaceae family that typically grow along forest edges. There are many related species in this group, and this species commonly grows near human dwellings.

2026.04.14

アケビ

校舎前の植え込みでアケビの花が咲いていました。林縁などに生えるアケビ科のつる性の木本です。花は薄い紫色で、大きめの雌花（写真左）と小さめの雄花（写真右）に分かれています。秋になる実は食用になります。


"Akebi" trees are in bloom in the bush in front of the school building. They are woody vines in the Lardizabalaceae family that typically grow along forest edges. Their flowers are pale purple, and they are divided into female and male flowers. (The female flowers are on the left in the photo, and the male flowers are on the right.)

2026.04.03

ミツバツチグリ

ススキ野原でミツバツチグリが咲いています。明るい草地に生えるバラ科の多年草です。和名は小葉が３個で、根茎（こんけい、地下にある茎）が肥大することに由来します。
"Mitsuba-Tsuchiguri" plants are in bloom in the Japanese pampas grass field. They are perennial plants in the Rosaceae family that grow on sunny grass fields. Their name comes from the fact that their leaves consist of three leaflets and they have swollen underground stems.

2026.03.31

ツルニチニチソウ

 校庭のわきでツルニチニチソウが咲いています。キョウチクトウ科のつる性植物で、南ヨーロッパから北アフリカ原産の帰化植物です。栽培されていたものが逸出し、各地で野生化しています。

"Tsuru-Nichinichi-Sou" plants are in bloom by the schoolyard. They are vine-like plants in the Apocynaceae family that are originally native to regions between Southern Europe and North Africa. Cultivated varieties have escaped into the wild and are now found in various parts of Japan.

2026.03.20

スズメノカタビラ

 お茶畑の周りでスズメノカタビラが咲いています。道端や芝生に混じって生えるイネ科の一年草です。和名の「スズメ」は全体が小さいことを示し、「カタビラ」は薄い着物のことで、花の形が着物の合わせの部分に似ていることに由来します。

"Suzume-No-Katabira" plants are in bloom by the tea garden. They are annual grasses in the
Poaceae family that grow along roadsides and among other grasses. The name "Suzume" (sparrow) refers to their small size, while "Katabira", which means a thin kimono, comes from the way their flowers resemble overlapping kimono collars.

2026.03.17

ヒメオドリコソウ

 お茶畑のわきでヒメオドリコソウが咲いています。ヨーロッパ原産のシソ科の越年草です。ほぼ全国に分布し、北アメリカや東アジアにも帰化しています。

"Hime-Odorikosou" plants are in bloom by the tea garden. They are winter annual plants in the Lamiaceae family that originally came from Europe. Today they can be found almost everywhere in Japan and have also become naturalized in many parts of Europe and East Asia.