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フィールド日記

2026.06.09

キキョウソウ

 バタフライピーを植えていた畑の周りにキキョウソウが咲いていました。道端などに生えるキキョウ科の1年草で、北アメリカ原産の帰化植物です。市街地でもよく見られますが、数年たつと消えてしまい、生育地が移動する傾向にあるとのことです。確かに数年前は駐車場の周りにもありましたが、最近は見なくなりました。

"Kikyousou" plants are in bloom around the field where we have planted the butterfly peas. They are annual plants in the Campanulaceae family that commonly grow along roadsides. Originally from North America, they are naturalized plants in Japan. Though they are commonly seen in urban areas, they often disappear from a site after a few years and reappear elsewhere. In fact, they used to grow around the parking area as well, but they can no longer be found there.

2026.06.05

ウツギ

共生の森でウツギが咲いています。林縁などに生えるアジサイ科の落葉低木です。和名のウツギ（空木）は、成長した枝が中空（茎の内部が空洞なこと）であることに由来します。

"Utsugi" trees are in bloom in the "Kyosei-Forest (共生の森)." They are small deciduous trees in the Hydrangeaceae family that commonly grow along forest edges. The Japanese name "Utugi" comes from the fact that their mature branches are hollow inside.

2026.06.02

ウスベニチチコグサ

本館前のヒマラヤスギの根元にウスベニチチコグサが咲いています。空き地などに生えるキク科の1年草または越年草です。北アメリカ原産の帰化植物で、本種以外にもチチコグサと名前の付く似た仲間が北アメリカから数種類入ってきています。

"Usubeni-Chichikogusa" plants are in bloom at the base of the "Himaraya-Sugi" trees in front of the Main building. They are annual or winter annual plants in the Asteraceae family that commonly grow in vacant lots. This species is a naturalized plant originally from North America. In addition to this species, several related plants whose names include "Chichikogusa" have also been introduced from North America.

2026.05.29

チチコグサ

本館前のソテツの根本に、チチコグサが咲いています。芝地に生えるキク科の多年草です。黄色い花をつけるハハコグサ（母子草）と対比して、地味な花をつける本種をチチコグサ（父子草）と呼ぶようになったそうです。
"Chichikogusa" plants are in bloom at the base of the "Sotetsu" tree in front of the Main building. They are perennial plants in the Asteraceae family that commonly grow in grassy areas.They are named "Chichikogusa" (father-and-son grass) because of their modest, inconspicuous flowers, contrasting with their relative "Hahakogusa" (mother-and-son grass), which has bright yellow flowers.

2026.05.26

ヒメコバンソウ

図書館への渡り廊下の植え込みでヒメコバンソウが咲いています。道端などに生えるイネ科の1年草です。和名は、近縁種のコバンソウに似て、小さいことに由来します。

"Hime-Kobansou" plants are in bloom in the flower bed along the walkway to the library. They are annual grasses in the Poaceae family that commonly grow along roadsides. The name comes from the fact that they resemble the close relatives called "Kobansou" but are smaller in size.

2026.05.22

ユウゲショウ

ユウゲショウが咲いています。アカバナ科の多年草で、アメリカ大陸原産の帰化植物です。人里周辺で広く見られます。和名は夕方に開花することに由来するといわれますが、実際には日中から咲いています。
"Yuugeshou" plants are in bloom. They are perennial plants in the Onagraceae that originally come from the Americas. They commonly grow near human dwellings. Their Japanese name comes from the fact that they are said to bloom in the evening, but actually, their flowers are often already open in the morning.

2026.05.19

トウバナ

 共生の森でトウバナが咲いています。林道わきなどでよく見られるシソ科の多年草です。近縁種のイヌトウバナは夏から咲き始めるのに対し、本種は春から咲いています。

“Toubana” plants are in bloom in the "Kyosei-Forest (共生の森)." They are perennial plants in the Lamiaceae family that commonly grow along forest roadsides. This species begins to bloom in spring, while a closely related species called "Inu-Toubana" starts flowering in summer.

2026.05.15

イヌガラシ

 共生の森でイヌガラシが咲いています。道端などによく見られるアブラナ科の多年草です。和名は「からし」の原料であるカラシナに似て非なるものという意味です。

"Inu-Garashi" plants are in bloom in the "Kyosei-Forest (共生の森)."  They are annual or winter annual plants in the Brassicaceae family that are commonly found growing along roadsides. The name comes from the fact that they resemble "Karashina" plants, which are used to make Japanese mustard "Karashi", though they are actually a different species.

2026.05.12

ベニカタバミ

 修道院の近くにベニカタバミが咲いていました。人家の近くに見られるカタバミ科の多年草です。別名をブラジルカタバミといい、南アメリカ原産の帰化植物です。

"Beni-Katabami" plants are in bloom around the convent. They are perennial plants in the Oxalidaceae family that commonly grow in residential areas. They originally come from South America, which is why they are also known as "Brazilian-Katabami."

2026.05.08

カンゾウタケ

 スダジイの木にカンゾウタケが生えていました。シイなどのブナ科の樹木に生えるキノコのなかまです。和名は、色や形が肝臓に見えることに由来します。また、世界各地で見られるキノコで、フランスでは見た目から牛の舌と呼ばれているようです。

"Kanzou-Take" mushrooms are growing on a "Sudajii" tree. They typically grow on trees of the beech family, such as chinquapins. Their Japanese name, "Kanzo", which means liver, comes from their liver-like appearance. These mushrooms are also found in Europe and North America. In French, they are called "Langue de boeuf", which means ‘cow’s tongue’, a name that likewise refers to their shape.
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