Dendranthema x grandiflorum (Ramat.) Kitam.

Dendranthema x grandiflorum (Ramat.) Kitam.

Family

Compositae

Synonyms

Chrysanthemum morifolium Ramat., Chrysanthemum sinense Sabine, Dendranthema morifolium (Ramat.).

Vernacular Names

English Chrysanthemum, florist's mum.
Thailand Dok-khee-kai (Northern), benchamaat, benchamaat nuu (Central).
Philippines Rosas de Japon (Tagalog), mansanilla (Iloko).
Vietnam B[aj]ch c[us]c, c[us]c hoa tr[awr]ng.

Geographical Distributions

Dendranthema x grandiflorum is cultivated in many countries as an ornamental, and 13 cultivar groups are recognised. It is very ancient cultivation, a native of China and Japan, and can be found in gardens, or naturalised throughout Southeast Asia.

Description

D. x grandiflorum is an aromatic biannual or perennial herb that can grow between 30-120 cm tall. The leaf form is egg-shaped, very variable in size with rounded teeth base often with 1-2 small and widely patent segments. The lower surface is densely white with grey-appressed-hairy while on the upper surface is almost smooth.

The hairy stalk of inflorescence is hardly thickened at the top. The ring of bracts surrounding several flowers is usually cup-shaped and often widely patent. The size measures between 6-9 mm long or longer, heads very variable measuring about 2-20 cm in diametre. The smooth petal is measures 11-35 mm long, white, yellow, pink, red, violet or brown. D. x grandiflorum is a hybrid of unknown parentage, grown in gardens, and flowering throughout the year. It resembles D. indicum, but is usually taller.

Ecology / Cultivation

D. x grandiflorum is planted in wide variety of regions, from sea-level to 1000 m altitude. It prefers sunny, fertile locations with loose and moist soil. The optimum temperature range is from 15ºC to 30ºC.

Line Drawing / Photograph

Dendranthema_x_grandiflorum

References

  1. Plant Resources of South-East Asia No.12(2): Medicinal and poisonous plants 2.