Article · Wikipedia archive · Last revised Jun 30, 2026

Conandron

Conandron ramondioides is a species of flowering plant in the family Gesneriaceae. It is the sole species in genus Conandron. It is native to eastern Asia, where it is found in southeastern China, Japan, Taiwan, and Vietnam. Its natural habitat is on damp rock faces, in forests and along streamsides. It is a common species in Japan.

Last revised
Jun 30, 2026
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≈ 1 min
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Citations
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Wikipedia ↗
Conandron
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Gesneriaceae
Genus: Conandron
Siebold & Zuccarini (1843)
Species:
C. ramondioides
Binomial name
Conandron ramondioides
Siebold & Zucc. (1843)
Synonyms1
  • Conandron minor T.Itô (1908)
  • Conandron ramondioides var. leucanthus Nakai (1928)
  • Conandron ramondioides f. leucanthus (Nakai) Okuyama (1955)
  • Conandron ramondioides var. pilosus Makino (1908)
  • Conandron ramondioides f. pilosus (Makino) Ohwi (1953)
  • Conandron ramondioides f. pilosus (Makino) Ohwi (1953)
  • Conandron ramondioides var. pilosus Nakai (1928), nom. illeg.
  • Conandron ramondioides var. ryukyuensis Masam. (1970)
  • Conandron ramondioides var. taiwanensis Masam. (1939)
  • Conandron ramondioides f. variegatus Nakai (1928)

Conandron ramondioides is a species of flowering plant in the family Gesneriaceae. It is the sole species in genus Conandron.2 It is native to eastern Asia, where it is found in southeastern China, Japan, Taiwan, and Vietnam.13 Its natural habitat is on damp rock faces, in forests and along streamsides.43 It is a common species in Japan.5

It is a perennial, growing to ~30 cm tall. It has large basal leaves. Flowers are purple and produced in the summer.35

Its Japanese name (岩煙草) is "rock tobacco", in reference to the resemblance of its leaves to tobacco, and its preference to grow on exposed rock.6

  • Basal leaves and young flower bud
    Basal leaves and young flower bud
References

References

  1. Conandron ramondioides Siebold & Zucc. Plants of the World Online. Retrieved 7 August 2024.
  2. Conandron Siebold & Zucc. Plants of the World Online. Retrieved 7 August 2024.
  3. Conandron ramondioides Flora of China
  4. Conandron ramondioides (in Japanese), Flora of Mikawa
  5. Ohwi, Jisaburo (1965). Flora of Japan. Smithsonian Institution. p. 813.
  6. Conandron ramondioides (in Japanese), Okayama University Plant Ecology Laboratory