Oriental Lady's Thumb (Persicaria Longiseta) イヌタデ（犬蓼）

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The Oriental lady's thumb (Persicaria longiseta) is native to China and south eastern Asia and can be found across Japan. The plant produces generally pink (and sometimes white) flowers from April to November. The flowers, however, have no petals, and what look like petals are calyxes, which are so cute.  

     

2026/6/21

Platycodon Grandiflorus (Balloon Flower) 桔梗（キキョウ）

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The balloon flower (Platycodon grandiflorus) is native to eastern Asia and can be found across Japan, producing beautiful white and purple flowers from June to September in Japan. The Japanese name of the clasping Venus' looking-glass (Triodanis perfoliata) is "balloon flower plant" after their similar flower shapes and colors (but not the size).  

Surprisingly, the balloon flower was called "morning glory" during the Manyo period (from the mid-7th to the mid-8th century) in Japan because then beautiful flowers blooming in the morning were all called morning glory. Do you find it inclusive or sloppy?

This reminded me of another inclusiveness or sloppiness issue about the colors of Japan, specifically, blue and green. If you are interested, read "Goryeo Celadon and Colors of Japan."

2026/6/22

2026/6/22

Duranta Erecta (Golden Dewdrop) デュランタ

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The golden dewdrop (Duranta erecta) is native to the American tropics but can be found across Japan, producing white, blue, and purple flowers from June to October across the country. After that, the plant produces tiny orange fruits, which, despite their cute appearance, are toxic as well as leaves. 

2020/9/6

2020/9/6

Bamboo-Leaf Oak (Quercus Myrsinifolia) シラカシ（白樫）

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The bamboo-leaf oak (Quercus myrsinifolia) is native to eastern Asia and can be found across Japan. The tree produces flowers from April to May and then fruits, i.e., acorns. What I find most fun is to observe their growth. They're tiny and pale green at first, then getting chubbier while turning matcha green then brown toward autumn. The baby acorns still have styles, which are part of the pistils.  

2026/6/19

Lily (Lilium) ユリ（百合）

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Lilies are native to Asia, Europe, and North America. There are more than 100 wild species around the world and 15 in Japan, producing flowers in various colors from May to August in Japan, of which I've seen pale pink, yellow (scroll down), red (Blackout red), and orange (Thunberg orange). The lily bulb (mainly the Maximowicz's lily's [Lilium leichtlinii]) is edible, often steamed, sauteed or deep-fried (i.e., tempura), as a seasonal delicacy in Japan. So, if you have a chance to come to Japan in winter, don't miss eating lily bulb or "yurine" TEMPURA to enjoy its soft and fluffy texture.  

The lily's Japanese name is "yuri" after the term "yusuri," which means shaking or trembling, because lilies shake and/or tremble in the wind as their stems are thin but the flowers are big.

2026/6/19

Oriental Beetle (Anomala Orientalis) セマダラコガネ（背斑金亀子）

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The oriental beetle (Anomala orientalis) is native to the Philippines and/or Japan and can be found across Japan. Its Japanese name is "semadara kogane," which translates into "Japanese beetle with spots on the back," well describing its features, doesn't it? 

The beetle wasn't a major pest in Japan but it's been known as a garden pest in other countries. A byproduct of globalization. 

2026/6/19

2026/6/19

Cabbage White Butterfly モンシロチョウ（紋白蝶）

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The cabbage white butterfly (Pieris rapae) is native to Europe, Asia, and North Africa, believed to come to Japan before the Edo period (1603-1868). 

Although its English name and Japanese name (which translates into "spot white butterfly") both include the term "white," the male cabbage white butterflies are yellowish. Also, according to Kubota Corporation's website (in Japanese only), the butterflies can tell the male from the female by the wing color because they can see ultraviolet light. The female's wing, which reflects ultraviolet light, looks brighter than the male's wing, which absorbs the light. 

2026/6/19 Likely a female

Cape Jasmine (Gardenia Jasminoides) クチナシ（梔子）

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The cape jasmine (Gardenia jasminoides) is native to eastern Asia and can be found across Japan, producing single and double flowered blooms from June to July in Tokyo. When its buds start to open, their green bases are still visible, which gives the blooms a beautiful color accent.

Cape jasmine's Japanese name is "kuchi nashi," which translates into "no mouth," because the fruits (scroll down) don't crack even after ripening. The fruits are used to give a yellow color (unexpected from the flower's white) to food, such as kuri kinton or mashed sweet potato with chestnuts, one of the traditional Japanese New Year foods. 

Double flowered cape jasmine rarely produces fruits because most of their stamens have transformed into petals like some species of the Japanese camellia. 

2026/6/17

Loosestrife (Lythrum Anceps) ミソハギ（禊萩）

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The loosestrife (Lythrum anceps) is native to eastern Asia and can be found across Japan. The plant produces pink flowers from July to September and is special in Japan, often placed on the family grave during the Obon period (mid-July or mid-August depending on areas). The Lythrum anceps resembles purple loosestrife (Lythrum salicaria) very much, although the latter is designated as an invasive species in some countries.

2024/8/5

European Lime (Tilia x Europaea) セイヨウシナノキ（西洋科の木）

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The linden (Tilia) is native throughout most of the temperate Northern Hemisphere and Japan has also its native one but most of the linden trees you would see in Tokyo and other cities in Japan are European ones or common linden. Common linden trees produce flowers from May to June in Tokyo and after that fruits, which turn brown toward autumn. The long strap shaped things are bracts, i.e., modified leaves, which help the seeds spin and disperse efficiently in the wind.

 

2026/6/17

Hollyhock (Alcea Rosea) 立葵（タチアオイ）

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Hollyhocks (Alcea rosea) are native to Turkey and East Europe but can be found across Japan. The plant produces single and double flowered white, pink, purple, and red flowers (scroll down!) from June to August in Tokyo. Their Japanese name is "tachi aoi," which translates into "standing mallow," and mallows have a special connotation in Japan. 

"Mitsuba aoi," which translates to "three leafed mallow," is the crest of the Tokugawa clan, who ruled Japan during the Edo period (1603-1868). This is known nationwide even now because of a long run "samurai" television program about Mitsukuni Tokugawa (1628-1701), one of the grandchildren of Ieyasu Tokugawa, the founder and first shogun of the Tokugawa shogunate of Japan. This period drama was aired initially from 1969 to 2011 and is still rerun now.   

In the drama, Mitsukuni travels throughout the country incognito to discover and investigate injustice and in the end defeats and punishes corrupt samurai and merchants. At the end of each episode, Mitsukuni (or more specifically, one of his two samurai retainers) brandishes an "inro" pillbox with the "three leafed mallow" crest to reveal Mitsukuni's identity, i.e., a member of the Tokugawa clan. (By the way, although Mitsukuni existed and was a relation of the shogun, the drama episodes are all fictional.)

Interestingly, however, the Tokugawa clan's crest is not "three leafed mallow" actually but Asarum caulescens Maxim., which is a very plain, two-leafed or heart shaped plant. The Tokugawa clan's crest, three-leafed mallow, is said to be modeled on this plain plant.

Then, another question comes up. Why did someone who wanted to rule the country choose such a plain plant as their crest? One website says that many samurai clans during the age of warring states (1467-1615) chose plain plants as their crests to show that they were strong and hardy enough to survive in such harsh circumstances as these plants were. 

I found a (maybe) varied carpet beetle covered in pollen in the center of a white flower (the first 3 photos). The beetle must have been having breakfast but looked to me like playing with pollen by itself.   

2026/6/17