'C. japonica var. obvallata Ohwi synonym' clematis references

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'C. japonica var. obvallata Ohwi synonym' clematis References

An Illustrated Encyclopedia of Clematis

Book (Oct 2001) Page(s) 299-300. Includes photo(s).

Flora of Japan

Book (1965) Page(s) 441.

6. Clematis obvallata (Ohwi) Tamura. C. japonica var. obvallata Ohwi; C. japonica forma obvallata (Ohwi) Ohwi - Kōya-hanshōzuru. Closely resembles the preceding [C. japonica]; bracts at the top of the peduncles, larger, often colored and involucrelike. - Mountains; Honshu (s. Kinki Distr.), Shikoku.
Var. shikokiana Tamura. Shikoku-hanshōzuru. Bracts smaller. Shikoku.