Common Dandelion

Common Dandelion🌼

Taraxacum officinale

セイヨウタンポポ

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キク科HerbIntroducedPerennialYellow flowersRoadsides

A perennial herb that blooms yellow flowers from spring to early summer. One of the most commonly seen plants along roadsides and in parks. Originally from Europe, this introduced species can be distinguished from native Japanese dandelions by its reflexed (recurved) outer involucral bracts.

Identification Points

  • Outer involucral bracts are reflexed (native dandelions have erect bracts)
  • Leaves form a basal rosette and are deeply lobed
  • Flowers are bright yellow; seeds form a spherical pappus that disperses in the wind

Habitat

Roadsides, parks, grasslands, fields

Season

March to October (flowers)

3D Specimen Model

Kyushu University, Shikano Lab (CC0)

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Morphological TraitsAI-estimated, needs verification

Leaf arrangement

Alternate

Leaf type

Simple

Venation

Pinnate

Leaf margin

Serrate

Leaf shape

Ovate

Growth form

Herb

Petal count

5 petals

Petal fusion

Fused

Flower color

Yellow

Habitat

Roadside

Ovary position

Inferior

Stamen count

1-2

Phylogenetic Positionキク科

Phylogenetic Position

Angiosperms > Eudicots > Core eudicots > Asterales > Asteraceae

Divergence Era

Late Cretaceous to Paleogene (approx. 80–70 million years ago)

Evolution Notes

Asteraceae is one of the largest families of flowering plants. The capitulum (head-like inflorescence) enhanced pollination efficiency.

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View キク科 page🌿 View in taxonomy
📚日本のタンポポとセイヨウタンポポ📚野草図鑑(ナツメ社)

Sources & References

📖Wikipedia 日本語版
🤖Claude AI生成(未確認)内容の正確性は未確認。YList・Wikipedia等での点検が必要。

AI-generated, needs verification