(Upload on June 28 2015) [ 日本語 | English ]

Chimonanthus praecox (L.) Link

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

Calycanthaceae Lindl. (ロウバイ)

Calycanthus L. (クロバナロウバイ)
Two species; western and southeastern North America
Idiospermum S. T. Blake
One species in Queensland
Sinocalycanthus W. C. Cheng et S. Y. Chang (ナツロウバイ)
One species in eastern Asia when established (often included into Calycanthus
Chimonanthus Lindl. (ロウバイ)
Six species in eastern Asia
One species, C. praecox, is known from Japan
C. praecox (L.) Link
Roubai (ロウバイ, 蝋梅), fragrant wintersweet tree
Lifeform: deciduous shrub
Origin: China
Use: gardening
f. concolor (Makino) Makino
Soshinroubai (ソシンロウバイ, 素心蝋梅), larger flower than the type
Origin: China (imported to Japan)
Corolla: yellow
Use: garden tree, flower arrangement, etc. Synonyms:

f. luteus (Makino) Okuyama

f. intermedius (Makino) Okuyama (カカバイ)

var. intermedius Makino

var. grandiflorus (Lindl.) Makino (トウロウバイ)

⇒ Engler's syllabus (エングラー体系)


Chimonanthus praecox in Japan

f. concolor (Makino) Makino
[1-3] at the imperial gardens in the former lawn Shiba detached palace, Tokyo, on May 29 2015.