フィールド日記
2026年01月
2026.01.20
オオアブラギリ
オオアブラギリの冬芽と果実が見られます。トウダイグサ科の落葉高木です。中国原産で、種子から油を取るために栽培されていたものが野生化しています。近縁のアブラギリの果実の先端が丸いのに対し、先端がとがっているのが特徴です。
You can find the winter buds and the fruits of the "Oo-Aburagiri" tree. It is a deciduous tree in the Euphorbiaceae family. They originally come from China and were once cultivated for their oil and later spread into the wild. While the fruit of their close relatives, called "Aburagiri," has a rounded tip, the fruit of this species has a pointed tip.
2026.01.16
コクラン
コクランが果実をつけていました。林床に生えるラン科の多年草です。果実の中にはホコリのように細かい種子がたくさん入っており、風によって飛ばされます。
"Kokuran" plants are now bearing fruit. They are perennial orchids that grow on forest floors. Their fruits contain many dust-like tiny seeds, which are dispersed by the wind.
2026.01.13
クサギ
クサギの冬芽と葉痕が見られます。シソ科の落葉高木です。冬芽は芽鱗（がりん）に覆われていない裸芽（らが）で、紫褐色の毛におおわれています。葉が落ちたあとの葉痕はひづめのような形をしています。
You can find the winter buds and leaf scars of "Kusagi" trees. They are deciduous species in the Lamiaceae family. Their winter buds are naked, meaning they are not covered with bud scales, and they have deep purple hairs. Their leaf scars, which are the marks after the leaves have fallen, are shaped like a hoof.
2026.01.09
ミヤマノコギリシダ
ミヤマノコギリシダが見られます。メシダ科の常緑のシダ植物です。胞子のう群は線形で、葉脈に沿ってつきます。似ている仲間が多く、分類が難しい種と言われています。
"Miyama-Nokogirishida" fern plants are growing. They are evergreen fern plants in the Athyriaceae family. Their line-shaped sori run along the leaf veins. It is said that they are difficult to identify, as many closely related species look very similar.
2026.01.06
フヨウ
フヨウの果実が熟していました。アオイ科の落葉低木です。果実は割れて、中の種子が見えています。種子には毛が生えており、風によって運ばれるようです。
The fruits of "Fuyou" trees have ripened. They are deciduous shrubs in the Malvaceae family. The seeds are visible as the fruits split open. They are covered with fine hairs, which allow them to be carried by the wind.
2026.01.02
フユイチゴ
フユイチゴが実をつけています。バラ科の常緑小低木で、キイチゴの一種です。和名は冬に果実が熟すことに由来します。
"Fuyu-Ichigo" plants are now bearing fruits. They are small evergreen shrubs in the Rosaceae family that are a type of raspberries. The name comes from the fact that their fruit ripens in winter.
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