King's mantle
This plant is a climbing shrub and grows 1 to 2 m in height. The dark purple flowers bloom at its axils.  It is named in honor of Swedish botanist, Carl Peter Thunberg, who is also one of the three scholars of Dejima  including Siebold and has built the foundation of the Japanese botany.
The climbing plants, such as Thunbergia alata and  Thunbergia gregorii, are well known as the  Thunbergia,  but this plant is an upright habitual shrub and has the specific epithet, erecta.  Yahazu in Japanese means a nock of an arrow, and compare the two bracts  which sandwich a flower to the yahazu, this plant was named as Kodachi (meaning upright habit)  Yahazu kazura (meaning a creeping plant) in Japanese.
This plant has glossy leaves and trumpet-shaped flowers like a Morning glory.  Its base is a deep shade of yellow, its cylindrical part is white, and the contrast of tricolor is beautiful,  so this plant has the English name, King's mantle.
Located in the Sun Gallery are a white-flowered cultivar, Thunbergia erecta 'Alba'  and a relative, Thunbergia vogeliana which has a little larger flowers  and different-shaped leaves.
Note
The three scholars of Dejima were the ones who came to Dejima in Nagasaki during the Edo period  and conducted a study of natural history.
Classification Acanthaceae Thunbergia
Scientific name Thunbergia erecta
Japanese name Kodachi-yahazukazura
English name King's mantle
Native locality Tropical western Africa
Ecological description Evergreen shrub
RDB ---
Planting place Sun Gallery
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