Cornflower

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Cornflower🌼

Cyanus segetum

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キク科HerbAnnualFlowerCut flowerCultivated

An annual or biennial in the daisy family, native to Europe. Once a common weed in wheat fields, it has declined and is now endangered in Germany. Introduced to Japan in the Meiji period for flowerbeds and cut flowers, and often self-sows. The Japanese name likens the flower to a 'yaguruma' (pinwheel decoration at the top of a carp streamer). The famous 'cornflower blue' has given its name to a colour and a dye. A national flower of Germany and associated with the Prussian royal family; in France, the symbol of remembrance for the fallen of WWI.

Identification Points

  • Flower heads with large radiating ray florets in blue, purple, pink, or white
  • Linear to lanceolate leaves with woolly white hairs
  • 40–90 cm tall

Habitat

Cultivated (flowerbeds, cut flowers); naturalized

Season

April to July (flowers)

Morphological TraitsAI-estimated, needs verification

Leaf arrangement

Alternate

Leaf type

Simple

Leaf shape

Linear

Growth form

Herb

Flower color

Blue

Flowering season

Spring

Habitat

Cultivated

Ovary position

Inferior

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)

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Sources & References

📖Wikipedia 日本語版
🤖Claude AI生成(未確認)Wikipediaリードを根拠に生成。要確認。

AI-generated, needs verification