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Rhubarb🌿
Rheum rhabarbarum
ルバーブ
A food-crop species in the knotweed family's Rheum genus. Japanese names 'Shokuyō-daiō' (edible rhubarb) and 'Karadaiō'. A perennial native to southern Siberia with thick rhizomes. Only the fleshy red leaf-stalks are eaten — processed into pies, jams, and crumbles. The leaves are toxic. Also has a mild laxative effect.
Identification Points
- ✓Large wavy basal leaves
- ✓Fleshy red to green petioles, 30–60 cm long
- ✓Greenish-white small flowers in a large panicle
Habitat
Cultivated (cold-climate fields, home gardens)
Season
May to July (leaf stalks)
Morphological TraitsAI-estimated, needs verification
Leaf arrangement
Alternate
Leaf type
Simple
Growth form
Herb
Habitat
Cultivated
Phylogenetic Positionタデ科 →
Phylogenetic Position
Angiosperms > Eudicots > Caryophyllales > Polygonaceae
Divergence Era
Late Cretaceous to Paleogene
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