(First upload on June 26 2011. Last on January 12 2014) [ 日本語 | English ]

Cornus controversa Hemsl. ex Prain

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

Cornus L. (ミズキ)

Trees except a few species are herbaceous - all are trees in the other genera in Cornaceae Flower: actinomorphic with 4-5 petals
Infrorescence: conical or racemed
Cornus L. (s.l.): four subgenera
Cornus L. (s.s.): cyme, white - yellow flower with a small involucre, no species in Japan
Swida Opiz, cyme, without an involucre
S. controversa (Hemsl.) Soj. (ミズキ)
S. macrophylla (Wall.) Soj. (クマノミズキ): not in Hokkaido
Chamaepericlymenum Hill, capitulum, shrub or perennial herb
C. canadense Asch. et Graebn. (ゴゼンタチバナ)
C. suecicum (L.) Asch. et Graebn. (エゾゴゼンタチバナ)
Benthamidia Spach, capitulum
B. kousa (Siebold et Zucc.) H. Hara (ヤマボウシ): non-native to Hokkaido
= non-native to Japan
C. mas L. (セイヨウサンシュユ), the Mediterranean
C. officinalis Siebold et Zucc. (サンシュユ)
C. alba L. (シラタマミズキ)
C. florida L. (アメリカヤマボウシ)
C. sericea L. (アカヤナギミズキ*)

Cornus controversa in Hokkaido

Mizuki (ミズキ, 水木), giant dogwood
Lifeform: deciduous tree < 15 m high
Distribution: Himalaya - Japan
Habitat: sunny, wet forests

Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト)

HUSTEP: Plants and Plant communities in Japan (flora list)


Swida controversa (Hemsl. ex Prain) Sojak

var. alpina (Wangerin) Hara (タカネミズキ): Japan Sea-side in Honshu
var. shikokumontana (Hiyama) Hara (イシヅチミズキ): Shikoku

[1] flowring. [2] a bark. [1/2] at a backyard of GSEES, Hokkaido University, on June 6 2011. [3] in the Ashoro Experimental Forest of Kyushu University, eastern Hokkaido, on June 25 2013.