Field Mustard / Rapeseed

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Field Mustard / Rapeseed🌼

Brassica rapa var. nippo-oleifera

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γ‚’γƒ–γƒ©γƒŠη§‘HerbBiennialVegetableOil cropLandscape plant

An annual/biennial in the mustard family, thought to originate from the Mediterranean to Western Asia. Long cultivated for rapeseed oil; now also grown as a landscape plant ('na-no-hana', rape blossoms) and a spring vegetable ('nabana'). The small 4-petaled yellow cruciform flowers cover fields in early spring, making the rape-blossom fields of Chiba and Mie tourist attractions. Naturalized individuals are common along rivers. Taxonomically contiguous with turnip, Chinese cabbage, and komatsuna.

Identification Points

  • βœ“Yellow 4-petaled (cruciform) flowers in racemes
  • βœ“Lower leaves pinnate; upper leaves clasping the stem
  • βœ“40–80 cm tall

Habitat

Cultivated (fields, landscape); riverbanks (naturalized)

Season

March to May (flowers)

Morphological TraitsAI-estimated, needs verification

Leaf arrangement

Alternate

Leaf type

Simple

Growth form

Herb

Petal count

4 petals

Flower color

Yellow

Flowering season

Spring

Habitat

Cultivated

Phylogenetic Positionγ‚’γƒ–γƒ©γƒŠη§‘ β†’

Phylogenetic Position

Angiosperms > Eudicots > Core eudicots > Brassicales > Brassicaceae

Divergence Era

Late Cretaceous to Paleogene

View γ‚’γƒ–γƒ©γƒŠη§‘ page🌿 View in taxonomy
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Sources & References

πŸ“–Wikipedia ζ—₯本θͺžη‰ˆβ†—
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