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Shiro TSUYUZAKI
Plant community ecology / Environmental conservation

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

(Update on May 1 2011)

Spring sasanqua camellia
Camellia × vernalis (Makino) Makino [Theaceae]

Harusazanka (ハルサザンカ, 春山茶花)

Life form: evergreen tree
Hybrid: considered to be artificial hybrids between C. japonica and C. sasanqua
Habitat: used for gardening
Chromosome number: 2n = 30

Varieties (Cultivars): many


Camellia vernalis in Japan

ST ST ST
C. vernalis cv. Yuletide. [Left] a tree. [Center] close-up of leaves on a shoot. [Right] close-up of a flower. In a greenhosue at Yurigahara Park on March 13 2011.


References

  • Tanaka T. 1988. Cytogenetic studies on the origin of Camellia × vernalis. IV. Introgressive hybridization of C. sasanqua and C. japonica. J. Jpn. Soc. Hortic. Sci. 57: 499-506
  • Tanaka T, Mizutani T, Shibata M, Tanikawa N. & Parks CR. 2005. Cytogenetic studies on the origin of Camellia × vernalis. V. Estimation of the seed parent of C. × vernalis that evolved about 400 years ago by cpDNA Analysis. J. Jpn. Soc. Hortic. Sci. 74: 464-468

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