Scheuchzeria

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Scheuchzeria

Scheuchzeria palustris

ホロムむソウ

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ホロムむソウ科HerbPerennialWetlandsAlpineHokkaidoRare

A perennial herb growing in peat bogs (Sphagnum mires) of the boreal to subarctic zones of the Northern Hemisphere. A rare species in Japan, found in raised bogs of Hokkaido and central to northern Honshu.

Identification Points

  • βœ“Linear leaves alternate on the stem with a pore at the leaf tip
  • βœ“Small greenish-white flowers in a raceme
  • βœ“Grows in Sphagnum-rich raised bogs and peatlands

Habitat

Raised bogs and peat wetlands (Hokkaido, alpine areas of Honshu)

Season

June–August (flowers)

Morphological TraitsAI-estimated, needs verification

Growth form

Herb

Leaf arrangement

Alternate

Leaf shape

Linear

Habitat

Wetland

Leaf type

Simple

Venation

Parallel

Petal count

6 petals

Leaf dissection

Undivided

Flower symmetry

Actinomorphic

Ovary position

Superior

Plant sex

Hermaphrodite

Phylogenetic Positionホロムむソウ科 β†’

Phylogenetic Position

Angiosperms > Monocots > Alismatales > Scheuchzeriaceae

Divergence Era

Late Cretaceous (ca. 80 million years ago)

Evolution Notes

Scheuchzeriaceae is one of the early-diverging monocot lineages, a monotypic family (1 genus, 1 species) retaining ancient traits of aquatic-to-wetland adaptation.

View on evolution timeline β†’
View ホロムむソウ科 page🌿 View in taxonomy
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Sources & References

πŸ€–Claude AIη”ŸζˆοΌˆζœͺη’ΊθͺοΌ‰

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