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07.0002 Ginkgo leaf Seed Plant Encyclopedia

[Seed Plant Encyclopedia #003] What are the species of the Ginkgo family? Photo list

The Ginkgoaceae family consists of deciduous trees. The leaves are flattened and spread out, with veins repeatedly branching dichotomously from the base of the petiole, becoming parallel veins that reach the upper leaf margin. They are dioecious; male flowers bear numerous anthers on a slender stalk. Female flowers typically have two ovules facing upwards at the end of the pedicel. Fertilization occurs...
2022.07.14
Seed Plant Encyclopedia
07.0001 Cycad (full form) Seed Plant Encyclopedia

[Seed Plant Encyclopedia #001] What are the species of the Cycadaceae family? Photo list

The family Cycadaceae is a family of plants belonging to the order Cycadales in the class Cycadae. All extant species are evergreen woody plants. The leaves are pinnately compound, with long, pointed leaflets. Numerous leaves grow at the tip of the stem, with the base remaining on the stem. The family is dioecious, with flowers borne terminally or laterally on the stem. The stamens (microsporophylls) are scale-like...
2022.07.13
Seed Plant Encyclopedia
07.3248 Oleander white flower type flower plant

How dangerous is the poison in oleanders? Why are they a symbol of peace in Hiroshima? The oleander flower, which doesn't secrete nectar, mimics an endangered species!?

Oleander is a common ornamental tree found in various locations throughout Japan, such as in parks and as street trees. However, it originally thrives in the Mediterranean and Southeast Asia. While there are various theories, it's said that 5 to 15 leaves are a lethal dose, and although extremely rare, there have been reports of poisoning in Japan. Furthermore, the smoke from burning oleander is also toxic...
2022.07.12
plant
13.30384 Firefly moth, female, adult animal

A thorough explanation of the species, toxins, and harmful effects of moths in the Zygaenidae family! What secrets are hidden behind their vibrant colors?

The Zygae family, exemplified by species like the firefly moth and the bamboo grass moth, is known for its bright, diurnal colors. But do you know why they have such striking colors? It turns out they possess a powerful poison that produces cyanide, and these colors serve as a "warning signal"...
2022.06.28
animal
07.3030 Mountain Azalea Flower 1 plant

What's the difference between mountain azaleas and rhododendrons? We'll explain how to distinguish between similar species! Research has revealed that bumblebees are also essential for flowers that are supposedly specialized in attracting butterflies!

The Japanese azalea (Rhododendron kaempferi) is a representative species of wild azalea in Japan, while the Japanese azalea (Rhododendron molle) is famous for being poisonous. Both belong to the Rhododendron genus of the Ericaceae family and are representative species of red wild azaleas, so you might get them confused. However, you can distinguish them by checking the shape of their leaves and how the flowers are arranged. These two species...
2022.06.21
plant
13.19339 *Peach-legged Longhorn Beetle* (male, adult) Edited animal

Why are the thighs of the longhorn beetle *Thumbelina japonica* so thick? A surprising evolutionary adaptation for subduing females and the truth about "sexual conflict."

Are you familiar with the insect known as the "peach-thicked longhorn beetle"? It gathers on flowers from spring to early summer and is one of the most commonly found insects in Honshu, belonging to the family Cerambycidae. Its most distinctive feature is its thick hind legs. I wondered why this was the case...
2022.06.09
animal
11.2000 *Yukatayamashirogumo* (a type of spider), female, adult. animal

The rare spider *Euphyllia japonica*, which preys on its victims by spinning silk from its mouth, can be found in your home!

When you imagine a spider, how do you picture it producing silk? A common misconception is that it produces silk from its mouth. In reality, spiders have organs called "spinnerets" on their abdomen from which they produce silk. Spiders typically don't produce silk from their mouths...
2022.05.26
animal
Chelidonium Majus Subsp Asiaticum Flower plant

What are the differences between Greater Celandine and Japanese Kerria? We'll explain how to distinguish between similar species! Are they poisonous? Why do Greater Celandine flowers bloom at an angle?

Both *Chelidonium majus* and *Cornus kousa* are wild species of the poppy family, composed of four yellow petals, so it can be difficult to distinguish between them. Their leaves can be differentiated by the presence or absence of serrations on the leaflets, and their flowers are almost identical, but there are differences in the arrangement of the inflorescence and the shape of the stamens and pistils...
2022.02.08
plant
Orthosiphon Aristatus Var Aristatus Flower plant

What species resembles *Cat's Whiskers* (Kumiskuching)? We'll explain how to distinguish them, and reveal that butterflies specialize in visiting the flowers! What are the effects of Kumiskuching tea?

*Cat's Whiskers* (Kumiskuching) is a popular ornamental horticultural plant in Japan, known for its long stamens. In Okinawa, it's called *Kumiskuching* and is sometimes used to make *Kumiskuching* tea. Several closely related species exist within the same genus, but they don't resemble each other very much. Japan...
2021.11.07
plant
07.0550 Japanese Daffodil Flower plant

There are differences between Japanese daffodils and regular daffodils! Are they poisonous? How do they differ from chives? Where are they native to? Why did the flowers evolve to bloom in winter?

Daffodils are a very popular ornamental plant in Japan, blooming in winter. However, a little research reveals that they are sometimes referred to as "Japanese daffodils" (Nihon-zuisen) or simply "daffodils." Is there a difference between Japanese daffodils and regular daffodils? Japanese daffodils are native to China...
2021.09.23
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