compound leaf

What are the differences between Corydalis ambigua, Corydalis fumariifolia, and Corydalis ambigua? An explanation of how to distinguish between similar species.

Corydalis ambigua, Corydalis fumariifolia, and Corydalis hyemalis all belong to the Corydalis genus of the poppy family. What's interesting about them is that in the spring (April-June) flowering season in forests, their purple to bluish-purple flowers bloom in a spiral pattern facing in all directions. However, their flower shapes and habitats are similar, so they can sometimes be confused...

2024.04.25

plant

What are the differences between Lespedeza bicolor, Lespedeza thunbergii, Lespedeza cyanea, and Lespedeza thunbergii? An explanation of how to distinguish between similar species.

Lespedeza bicolor, Lespedeza thunbergii, Lespedeza thunbergii, and Lespedeza thunbergii are all perennial herbs belonging to the genus Lespedeza in the family Fabaceae. They are particularly small, less than 10mm in length, and do not develop woody tissue. A major common feature is that their petals are primarily white with purple markings that serve as nectar guides, making them difficult to distinguish...

2024.04.16

plant

What are the differences between wild strawberries, Japanese wild strawberries, and large wild strawberries? We explain how to distinguish between similar species! It's surprisingly difficult to tell them apart!

Strawberry (Potentilla indica), Japanese wild strawberry (Potentilla fragarioides), and common wild strawberry (Potentilla indica) all belong to the genus Potentilla in the Rosaceae family. They are known as representative spring weeds in Japan, characterized by their creeping stems that spread along the ground. Occasionally, they are referred to as "wild strawberries" along with other members of the Rubus genus...

2024.03.20

plant

What's the difference between winter cosmos and cosmos? We'll explain how to distinguish between similar species! And did you know that Bidens pilosa is actually a different species?!

Winter cosmos (also known as winter cosmos) is cultivated in horticulture for ornamental purposes and is a valuable plant for gardening because it blooms in winter, from September to December. At first glance, some people might confuse it with cosmos because their names are similar. However, by examining the bracts, flowers, and fruits...

2024.02.07

plant

What are the differences between Phyllanthus urinaria, Phyllanthus urinaria, and Phyllanthus longifolius? An explanation of how to distinguish between similar species.

Phyllanthus urinaria, Phyllanthus sempervirens, and Phyllanthus longifolius all belong to the Phyllanthus genus of the Phyllanthaceae family. These annual plants grow in fields and roadsides, and are notable for their numerous small, orange-like green to red fruits rather than their flowers. These three species are among the most frequently found in the Phyllanthus genus...

2023.10.20

plant

What are the differences between cosmos, yellow cosmos, chocolate cosmos, and marigolds? We explain how to distinguish between similar varieties.

Cosmos, yellow cosmos, and chocolate cosmos all belong to the Cosmos genus of the Asteraceae family. Although they are introduced species in Japan, they have become representative autumn landscape plants, as evidenced by their alternative name, "autumn cherry blossom," and are widely cultivated. They are characterized by their large, beautiful ray florets and achenes...

2023.10.06

plant

What are the differences between Rhynchospora tetrandra, Rhynchospora tokiri, and Vigna angularis? An explanation of how to distinguish between similar species.

Tankirimame, Tokirimame, and Nosasage all belong to the legume family and are common climbing perennial herbs found in the forest edges of Japan. They share several characteristics, including trifoliate compound leaves, butterfly-shaped flowers that bloom from summer to autumn, and yellow flowers, which can sometimes make them difficult to distinguish. However, these three...

2023.10.02

plant

What are the differences between ragweed and giant ragweed? What are the differences between goldenrod, goldenrod, and hawkweed? We'll explain how to distinguish between similar species.

Ragweed and giant ragweed are both annual weeds belonging to the genus Ragweed in the Asteraceae family, and are best known for causing "ragweed pollen allergy" in humans. This is because ragweed flowers are wind-pollinated, and to achieve this, the male and female flower heads are elongated...

2023.09.22

plant

What are the differences between Japanese anemone and aster? We'll explain how to distinguish between similar species! Were you mostly misidentifying Japanese anemones?

Japanese anemone (Anemone hupehensis), Taiwanese anemone, and button-leaved.

2023.09.10

plant

What are the differences between Persicaria filiformis, Persicaria thunbergii, and Persicaria filiformis? An explanation of how to distinguish between similar species.

*Persicaria filiformis*, *Persicaria thunbergii*, and *Persicaria filiformis* are all perennial herbs belonging to the genus *Persicaria* in the rose family, and in Japan they grow in forest edges and other similar areas. Their most distinctive features are the hook-shaped thorns beneath the calyx and their fruits, which are burrs that stick to surfaces. These two species, as their names suggest, differ primarily in their overall size...

2023.08.21

plant

compound leaf

What are the differences between Corydalis ambigua, Corydalis fumariifolia, and Corydalis ambigua? An explanation of how to distinguish between similar species.

What are the differences between Lespedeza bicolor, Lespedeza thunbergii, Lespedeza cyanea, and Lespedeza thunbergii? An explanation of how to distinguish between similar species.

What are the differences between wild strawberries, Japanese wild strawberries, and large wild strawberries? We explain how to distinguish between similar species! It's surprisingly difficult to tell them apart!

What's the difference between winter cosmos and cosmos? We'll explain how to distinguish between similar species! And did you know that Bidens pilosa is actually a different species?!

What are the differences between *Phyllanthus urinaria*, *Phyllanthus urinaria*, and *Phyllanthus longifolius*? An explanation of how to distinguish between similar species.

What are the differences between cosmos, yellow cosmos, chocolate cosmos, and marigolds? We explain how to distinguish between similar varieties.

What are the differences between Rhynchospora tetrandra, Rhynchospora tokiri, and Vigna angularis? An explanation of how to distinguish between similar species.

What are the differences between ragweed and giant ragweed? What are the differences between goldenrod, goldenrod, and hawkweed? We'll explain how to distinguish between similar species.

What are the differences between Japanese anemone and aster? We'll explain how to distinguish between similar species! Were you mostly misidentifying Japanese anemones?

What are the differences between *Persicaria filiformis*, *Persicaria thunbergii*, and *Persicaria filiformis*? An explanation of how to distinguish between similar species.

What are the differences between Phyllanthus urinaria, Phyllanthus urinaria, and Phyllanthus longifolius? An explanation of how to distinguish between similar species.

What are the differences between Persicaria filiformis, Persicaria thunbergii, and Persicaria filiformis? An explanation of how to distinguish between similar species.