taxonomy

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What are the differences between morning glories, round-leaved morning glories, wild morning glories, and American morning glories? We'll explain how to distinguish between similar varieties! The origins of Japanese morning glories are shrouded in mystery!?

Morning glories (Ipomoea nil), round-leaved morning glories, wild morning glories, and American morning glories all belong to the Ipomoea genus of the Convolvulaceae family. Among the varieties with "morning glory" in their name, they are particularly popular for their large corolla diameter (over 3 cm) and are widely cultivated as ornamental plants. While they are very popular, there is considerable individual variation between varieties...
2024.07.10
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What are the differences between Barnyard Grass (Paspalum erythrostictum), Striped Barnyard Grass (Paspalum erythrostictum), Upright Barnyard Grass (Paspalum erythrostictum), and American Barnyard Grass (Paspalum erythrostictum)? An explanation of how to distinguish between similar species.

Barnyard grass, striped barnyard grass, upright barnyard grass, and American barnyard grass are all perennial grasses belonging to the genus Barnyard grass in the grass family Poaceae, and are commonly found as weeds in a wide range of areas from urban areas to farmlands. Their most distinctive feature is their flat, nearly circular to oval-shaped spikelets...
2024.07.04
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What are the differences between Barnyard Grass and Sea Barnyard Grass? An explanation of how to distinguish between similar species.

Both Barnyard grass (Barnyard grass) and sea barnyard grass (Barnyard grass) are weeds belonging to the genus Barnyard grass in the family Poaceae. They are unassuming weeds that generally prefer watery areas, but can also be found along roadsides. They are characterized by their conical inflorescences and the awns on their spikelets, but some people may have difficulty distinguishing between the two species...
2024.06.25
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plant

What are the differences between Goosegrass, Digitaria sanguinalis, and Digitaria sanguinalis? An explanation of how to distinguish between similar species.

Digitaria sanguinalis, Digitaria sanguinalis, and Digitaria sanguinalis are all members of the grass family and are extremely common herbaceous plants and weeds that can be found growing everywhere from urban to rural areas from summer to autumn. Their most significant common feature is that they all produce several racemes, or inflorescences. Their names are similar...
2024.06.21
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plant

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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plant

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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What are the differences between *Tama coral* (winter coral) and *Himeta coral*? An explanation of how to distinguish between similar species.

Both Solanum sieboldii (winter coral) and Solanum nigrum belong to the Solanaceae family and are cultivated extensively for ornamental purposes because they produce attractive, round, red, ripe fruits (berries) in winter. However, in Japan, it is not always possible to properly distinguish between the two varieties, Solanum sieboldii and Solanum nigrum...
2024.06.06
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plant

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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plant

What are the differences between Asparagus, Asparagus, and Coprinus? An explanation of how to distinguish between similar species.

Asparagus, rhizome, and dwarf asparagus are all perennial herbs belonging to the genus Asparagus in the family Asparagaceae, and their most distinctive feature is the clusters of very thin, spine-like "leaf-like" structures. In reality, these are modified "branches" (called cladodes), and the true leaves are...
2024.05.17
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plant

What are the differences between horse chestnut trees (Aesculus hippocastanum), European horse chestnut (Aesculus turbinata), red-flowered horse chestnut (Aesculus turbinata), and red-flowered American horse chestnut (Aesculus turbinata)? We explain how to distinguish between similar species.

Horse chestnut (Aesculus hippocastanum), European horse chestnut (Aesculus turbinata), red-flowered horse chestnut (Aesculus turbinata), and red-flowered American horse chestnut (Aesculus turbinata) all belong to the Aesculus genus of the Sapindaceae family. They are characterized by their large, palmately compound leaves and are commonly seen cultivated in parks, as street trees, and garden trees in Japan. Originally, the native Japanese horse chestnut has become associated with the Japanese people...
2024.05.16
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