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What are the differences between Fraxinus lanuginosa, Fraxinus sieboldiana, and Fraxinus japonica? How do they differ from Fraxinus sieboldiana and Fraxinus japonica? We'll explain how to distinguish between similar species! Did the flowers use both wind and insects for pollination? What is the purpose of the wings on the fruit?

Fraxinus lanuginosa, Fraxinus sieboldiana, and Fraxinus japonica all belong to the genus Fraxinus in the family Oleaceae. They are very similar in that they have odd-pinnately compound leaves, and their leaf and flower shapes are particularly similar compared to other species in the Fraxinus genus. Therefore, it can sometimes be difficult to distinguish between them. What are Fraxinus lanuginosa and Fraxinus japonica...?.
2023.05.25
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What are the differences between dock, long-leaved dock, rough dock, and Ezo dock? How do you distinguish them from sorrel? We'll explain how to tell similar species apart! Did they rely on wind for pollination? Seed dispersal methods were more diverse than you might imagine!

Rumex japonicus, Rumex longifolius, Rumex crispus, and Rumex japonicus all belong to the genus Rumex in the family Polygonaceae. Originally, only Rumex japonicus was found in Japan, but multiple species have invaded and become extremely common weeds. They also share a common preference for disturbed soil, and are often found growing together...
2023.05.23
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What are the differences between *Tatsunamisou*, *Kobano-tatsunamisou*, *Okata-tatsunamisou*, and *Namikisou*? We explain how to distinguish between similar species! Do bees like the flowers? And are raindrops important for the fruit?!

Scutellaria indica, Scutellaria baicalensis, Scutellaria japonica, and Scutellaria verna all belong to the genus Scutellaria in the Lamiaceae family. They are often confused in horticulture, and because they frequently grow in forest edges and on the forest floor, their large, swollen corollas are similar in shape, making them difficult to distinguish by observation alone. The genus Scutellaria includes...
2023.05.18
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What's the difference between okra and tororo aoi (flower okra)? How to distinguish between similar species! What are the uses? Bees love the flowers! What happens to unripe okra if left unattended?

Okra and Abelmoschus manihot both belong to the Malvaceae family, and are used by humans due to the viscous nature of parts of their bodies. Morphologically, they share similarities: their leaves are palmate with 3-9 lobes, their flowers have a protruding "column" (a fused structure of stamens and pistils), and their corollas are white...
2023.05.16
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クチナシとコクチナシの違いは？品種は？似た種類の見分け方を解説！利用方法は？甘い香りはスズメガのためだった！？果実の色素の自然界での役割は？

クチナシは野生植物としても園芸植物でも食品添加物としても日本人に欠かすことのできない植物ですが、コクチナシという種類も知られ、花の形に違いはなく、葉も対生または三輪生し、常緑樹であるため、光沢があり、全縁で葉先が普通は尖る点も共通しています...
2023.05.14
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ヤシャブシ・ヒメヤシャブシ・オオバヤシャブシの違いは？ハンノキ類との違いは？似た種類の見分け方を解説！痩せた土地で生育できる理由は？花も果実も風に頼る生活を送っていた！？

ヤシャブシ・ヒメヤシャブシ・オオバヤシャブシはいずれもカバノキ科ハンノキ属に含まれ、日本固有種です。外生菌根菌と空気中の窒素を利用できる窒素固定放線菌の双方と共生関係にあることから、痩せた土地での生息に適しており、自生するほか緑化などに用い...
2023.05.12
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サンショウ（山椒）・イヌザンショウ（青花椒）・カラスザンショウの違いは？似た種類の見分け方を解説！利用方法は？花にやってくる昆虫は？鳥は種子に辛味を感じず大好きだった！？

サンショウ・イヌザンショウ・カラスザンショウは日本ではよく見られる種類で特にサンショウは現代でも料理に欠かせません。いずれもミカン科サンショウ属で植物体全体に刺が多く、奇数の小葉からなる奇数羽状複葉であることからよく似ています。山椒特有の匂...
2023.05.11
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What are the differences between autumn olive, summer olive, Chinese olive, and white olive? Can they be eaten raw? Is the "sparkle" on the leaves to prevent drying? What insects visit the flowers? Are the sweet and sour fruits very popular in nature?

アキグミ・ナツグミ・トウグミ・ナワシログミはいずれもグミ科グミ属で、日本の河川・海岸・林内など様々な場所で見られ、葉の表面は星状毛や鱗状毛と呼ばれる毛によってキラキラしており、花弁はなく、円筒形の萼筒のみから構成される淡黄色の花を咲かせる種...
2023.05.02
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ヤマボウシ・ハナミズキ・常緑ヤマボウシの違いは？似た種類の見分け方を解説！花には様々な昆虫がやってくるが傾向に違いあり？果実は「核果」と「集合果」の2タイプがあった！？

ヤマボウシ・ハナミズキ・ジョウリョクヤマボウシは一見花びらのような白い総苞片が目立つ花を持ち、よく植栽される樹木3種です。白い総苞片は類似し、葉の形も似ているので混同されることがあるかもしれません。しかし、これら3種は葉の形と色だけで区別す...
2023.04.05
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キョウチクトウの毒はどのくらい危険？なぜ広島では平和の象徴？蜜を分泌しないキョウチクトウの花は絶滅種に擬態していた！？

キョウチクトウは公園での植え込みや街路樹など日本国内で様々な地点で見かける園芸樹木ですが、元々は地中海から東南アジアに分布しており、諸説ありますが、葉5～15枚が致死量と言われ、国内でも極稀ですが、中毒の報告があります。また燃やした煙にも毒...
2022.07.12
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