Summer Cypress

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Summer Cypress

Bassia scoparia

ホウキギ

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ヒユ科HerbAnnualIntroducedFall foliageEdibleOrnamental

An annual herb native to Eurasia, known in Japan as 'Kochia' and popular as an ornamental for its beautiful autumn coloring. Named 'Houkigi' ('broom plant') because it was once dried and used as a broom. Its seeds ('tonburi') are eaten as 'land caviar.'

Identification Points

  • Conical bushy form densely covered with fine linear leaves
  • Entire plant turns vivid red to orange in autumn
  • Seeds ('tonburi') are small green granules

Habitat

Flower beds, parks (cultivated), and fields

Season

September–November (fall coloring)

Morphological TraitsAI-estimated, needs verification

Leaf arrangement

Alternate

Leaf type

Simple

Venation

Pinnate

Leaf margin

Entire

Leaf shape

Ovate

Growth form

Herb

Petal fusion

No petals

Stipules

Absent

Leaf dissection

Undivided

Flower symmetry

Actinomorphic

Ovary position

Superior

Phylogenetic Positionヒユ科

Phylogenetic Position

Angiosperms > Eudicots > Core Eudicots > Caryophyllales > Amaranthaceae

Divergence Era

Late Cretaceous to Paleogene (ca. 80–65 million years ago)

Evolution Notes

Amaranthaceae (including former Chenopodiaceae) contains many plants with C4 photosynthesis and adaptations to salinity and drought. It includes important food and industrial crops such as spinach, sugar beet, and amaranth.

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Sources & References

📖Wikipedia 日本語版
🤖Claude AI生成(未確認)内容の正確性は未確認。

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