生き物 | Page 6 | Ecological Notes Web

What are the differences between poinsettias, Epipactis thunbergii, and false Epipactis thunbergii? We'll explain how to distinguish between similar species! Is it a myth that poinsettias are poisonous?!

Poinsettias, Euphorbia hederacea, and Euphorbia leucocephala all belong to the Euphorbia genus of the Euphorbiaceae family. While widely cultivated for ornamental purposes, they also sometimes become naturalized. Their most striking feature is their bright red or white, conspicuous petal-like "bracts"...

2024.06.14

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What's the difference between Angelica acutiloba and Angelica gigas? We'll explain how to distinguish between similar species! Is the purple color of the flowers due to wasps?!

Both Angelica dahurica and Angelica pubescens belong to the Angelica genus of the Apiaceae family. They are medium to large perennial herbs with thick stems and broad leaves, and are similar in that their leaflets are large and rounded. However, upon closer observation, there are differences in their leaves, flowers, and fruits. However, since there are many species in the Angelica genus, careful distinction is necessary...

2024.06.10

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タマサンゴ（フユサンゴ）とヒメタマサンゴの違いは？似た種類の見分け方を解説

タマサンゴ（フユサンゴ）とヒメタマサンゴはいずれもナス科ナス属に含まれ、冬になると丸くて赤く熟した果実（液果）をつけることから見栄えが良く、観賞用に盛んに栽培されています。しかし、日本国内ではタマサンゴとヒメタマサンゴの2変種をきちんと区別...

2024.06.06

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What are the differences between Ophiopogon japonicus, Ophiopogon longifolius, Ophiopogon sieboldii, and Ophiopogon orchid? An explanation of how to distinguish between similar species.

Ophiopogon japonicus, Ophiopogon longifolius, Ophiopogon sieboldii, and Ophiopogon orchid all belong to the Ophiopogon genus of the Asparagaceae family (formerly Asparagaceae), and are evergreen perennial herbs often seen growing creeping along the ground in forests. Their most distinctive feature is the dark blue seeds they produce, which are easily mistaken for fruits...

2024.06.03

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キジカクシ・アスパラガス・クサスギカズラの違いは？似た種類の見分け方を解説

キジカクシ・アスパラガス・クサスギカズラはいずれもキジカクシ科キジカクシ属に含まれる多年草で、非常に細い刺針状の「葉」のようなものが束生しているのが何よりの特徴でしょう。実際はこれは「枝」が変化したものであり（葉状枝と呼ばれる）、本物の葉は...

2024.05.17

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トチノキ・セイヨウトチノキ（マロニエ）・ベニバナトチノキ・アカバナアメリカトチノキの違いは？似た種類の見分け方を解説

トチノキ・セイヨウトチノキ・ベニバナトチノキ・アカバナアメリカトチノキはいずれもムクロジ科トチノキ属に含まれ、大きな掌状複葉が特徴的で日本では公園樹・街路樹・庭木として栽培されているのを見かけるでしょう。元々は固有種のトチノキが日本人と関わ...

2024.05.16

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What are the differences between Boehmeria japonica, Boehmeria nivea, Ramie, and Urtica dioica? An explanation of how to distinguish between similar species.

Boehmeria japonica, Boehmeria nivea, Ramie, and Urtica dioica all belong to the Urticaceae family and share the characteristic of having leaves with fine veins and serrations. They are common herbaceous plants that grow in mountains and fields. Boehmeria japonica and Ramie are also well-known for their use as fibers. However, the classification of the Urticaceae family is complex...

2024.05.10

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ニガキ・ニワウルシ・ウルシの違いは？似た種類の見分け方を解説

ニガキとニワウルシはいずれもニガキ科に含まれ、日本では植栽されることのある落葉高木です。特にニワウルシは成長が速く世界的に野生化が進んでいることで知られています。しかし、奇数羽状複葉の葉を持っている点などが共通しており、見たことがない人は違...

2024.05.08

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シャリンバイ・マルバシャリンバイ・モッコクモドキの違いは？似た種類の見分け方を解説

シャリンバイ・マルバシャリンバイ・モッコクモドキはいずれもバラ科シャリンバイ属に含まれ、本来は海岸に自生しますが、都市部でも植えられているのを頻繁に見かけます。しかし、シャリンバイ属の分類は種レベルでも複雑な上に、上記の3種類以外にもそれぞ...

2024.05.07

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What's the difference between Hatake-nira and Nira-modoki? An explanation of how to distinguish between similar species.

Both Allium spectabile and Allium sibiricum belong to the genus Allium in the Amaryllidaceae family. Although they are introduced species in Japan, they are now very common, growing in places like between concrete blocks along roadsides. However, they are extremely often confused. To distinguish between these two species, it's necessary to examine their leaves and flowers. Regarding the flowers...

2024.05.05

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