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Rock Tobacco
Conandron ramondioides
γ€γ―γΏγγ³
A perennial herb growing on wet rock walls in ravines. Named for its large leaves resembling tobacco leaves. It blooms with purple flowers in summer, adorning rocky ravine walls. The representative species of the Japanese endemic genus Conandron.
Identification Points
- βLeaves large, ovate with many wrinkles, resembling tobacco leaves
- βStar-shaped purple flowers in umbel-like clusters in summer
- βGrows on wet rock walls, hanging down as a lithophyte
Habitat
Wet rock walls and cliffs in ravines
Season
JulyβAugust (flowers)
Morphological TraitsAI-estimated, needs verification
Growth form
Herb
Flower color
Purple
Leaf type
Simple
Venation
Pinnate
Petal count
Many
Petal fusion
Fused
Stipules
Absent
Stamen count
5
Phylogenetic Positionγ€γ―γΏγγ³η§ β
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Lamiales > Gesneriaceae
Divergence Era
Paleogene (ca. 65β50 Ma)
Evolution Notes
Gesneriaceae belongs to Lamiales; though of tropical origin, in Japan it adapted to the specialized environment of rocky ravines as a rare group.
View on evolution timeline βSources & References
AI-generated, needs verification