In 1984, Higashiyama Botanical Garden took over this plant from Fukuoka Botanical Garden
and was growing for 20 years but it did not bloom. So it was replaced in the ground,
and 5 years later, in 2009, it finally bloomed.
This is a climbing plant and can grow about 15 meters in length. It has a sweet scent and is full of nectar.
It has a Chinese name, Seimeika (meaning pure and cheerful flower), which is neat and clean.
It is said that this plant grows in a limited number of botanical gardens in Japan.
A lily-like white flower which is 10 cm in diameter blooms in a circular way,
and the center of the flower changes its color sequentially from light green to light orange.
Five stamens project from inside tha flower tube, and an arrow-shaped anther attaches to the filaments
as if getting stuck and agglutinate each other. However, 5 anthers cover the pistl
as if putting a lid on and stick togeter, that is apparently against cross pollination.
| Classification ||Apocynaceae Beaumontia|
| Scientific name ||Beaumontia grandiflora|
| Japanese name ||Obana-kazura|
| English name ||Herald's Trumpet|
| Native locality ||The northern part of India|
Ecological description ||Evergreen woody climbing plant|
| RDB ||---|
| Planting place ||Sun Gallery|