Ecological Notes Web

There are differences between Agapanthus and Clivia! We'll explain how to distinguish between these similar species! It turns out they've been mistakenly identified as the same species for a long time!?

Agapanthus and purple lily are both perennial plants belonging to the genus Agapanthus in the Amaryllidaceae family. While they are unique in that they both bear numerous blue, funnel-shaped flowers, making it unlikely to confuse them, the common misconception that "Agapanthus cultivated for ornamental purposes is the same as purple lily...".

2025.05.05

plant

What are the differences between evening primroses (Oenothera biennis), dwarf evening primroses (Oenothera japonica), common evening primroses (Oenothera parviflora), and large evening primroses (Oenothera biennis)? We'll explain how to distinguish between similar species! Why did they evolve to bloom in the evening?

Evening primrose (Oenothera biennis), small evening primrose (Oenothera japonica), common evening primrose (Oenothera parviflora), and large evening primrose (Oenothera japonica) are all herbaceous plants belonging to the genus Oenothera in the family Onagraceae. Although they are introduced species, they are frequently seen in urban areas. Among the Oenothera species, these four species differ from the flowers we usually see, as they bloom in the evening with four petals...

2025.05.02

plant

What's the difference between Tenningiku and Otenningiku? We'll explain how to distinguish between these similar species! Actually, telling them apart is quite difficult...?

Both *Lysimachia japonica* and *Lysimachia japonica* are herbaceous plants belonging to the genus *Lysimachia* in the Asteraceae family. They are characterized by their spherical or convex receptacle and the bicolored ray florets. Due to their beautiful colors, they are sometimes cultivated for ornamental or landscaping purposes...

2025.05.01

plant

ラミウム・ツルオドリコソウ・キバナオドリコソウの違いは？似た種類の見分け方を解説！

ツルオドリコソウとキバナオドリコソウはいずれもシソ科オドリコソウ属に含まれる草本で、園芸では「ラミウム」と呼称され、キバナオドリコソウの別名が「ツルオドリコソウ」であることも手伝い検索すると混同されて表示されています。しかし、生物学的には全...

2025.04.29

plant

ホオズキ・ショクヨウホオズキ（ストロベリートマト）・トマトの違いは？似た種類の見分け方を解説！「食用ホオズキ」は3種類が混同されている！？

ホオズキ・ショクヨウホオズキ（ストロベリートマト）・トマトはいずれもナス科に含まれ、赤系統の果実をつける点が特徴の仲間です。ショクヨウホオズキは「食用ホオズキ」や「ストロベリートマト」という名前で流通し、ホオズキやトマトとの関連性があるかの...

2025.04.26

plant

ハナズオウ・アメリカハナズオウ・セイヨウハナズオウの違いは？似た種類の見分け方を解説！

ハナズオウ・アメリカハナズオウ・セイヨウハナズオウはいずれもサクラのように展葉前に春にピンク～紫色のマメ科特有の蝶形花だけが密生しているのが最大の特徴です。昔から栽培されるハナズオウは有名ですが、近年アメリカハナズオウやセイヨウハナズオウが...

2025.04.24

plant

What are the differences between Pieris japonica, Pieris ryukyuensis, and Pieris japonica? We explain how to distinguish between similar species!

Japanese Andromeda, Ryukyu Andromeda, and Japanese Stewartia all belong to the Ericaceae family, have downward-facing, urn-shaped to bell-shaped flowers, and their bark can be twisted. They also all share the characteristic of being poisonous. Therefore, some people may have difficulty distinguishing them. However, Japanese Andromeda and Ryukyu Andromeda are similar...

2025.04.23

plant

What are the differences between Glechoma hederacea and Glechoma hederacea (European Glechoma hederacea)? What are the differences between Centella asiatica, Lamium amplexicaule, and Mazus pumilus? We'll explain how to distinguish between similar species!

Both Glechoma hederacea and Glechoma erythrorhizon (European Glechoma) belong to the genus Glechoma in the Lamiaceae family. Their names, meaning "through the fence," come from the way their stems creep along the ground and pass through hedges. They are characterized by kidney-shaped leaves and labiate flowers with a large opening in the center. However, Glechoma erythrorhizon, which is recently cultivated in gardens, is...

2025.04.21

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