The castor oil plant or castor bean plant (scientific name: ricinus communis) is species of perennial flowering plant in the Euphorbiaceae (or spurge) family
Castor seed is the source of castor oil
There is an unrelated plant of similar appearance, the false castor oil plant, that grows in Japan
The false castor oil plant
Chinese arborvitae
Chinese arborvitae (scientific name: Platycladus orientalis) is also known as Chinese thuja, Oriental arborvitae, biota, or Oriental thuja
It is native to northeastern parts of East Asia and North Asia
It is the only species of the monotypic genus Platycladus in the cypress family Cupressaceae
Chinese hibiscus
Chinese hibiscus (scientific name: Hibiscus rosa-sinensis) also has a Latin name: rosa-sinensis (literally: 'Chinese rose')
However, the Chinese hibiscus is NOT closely related to the rose
It has prominent orange-tipped red anthers
It is widely cultivated in tropical and subtropical regions
Chrysanthemum
Chrysanthemum (from the Ancient Greek 'chrysos' (gold) and 'anthemon' (flower)) is also called mum or chrysanth
It is native to East Asia and northeastern Europe
Chrysanthemums were first cultivated in China as early as the 15th c. B.C.
Common senduduk
The common senduduk (scientific name: melastoma malabathricum) is planted around the world for the aesthetic value of its bright purple flowers
It is also known as the Singapore rhododendron
It is a known hyperaccumulator of aluminium and can be used for phytoremediation
The common senduduk is native to Southeast Asia, Japan, and Australia