Yellow bell tree is about 4 to 5 meters high, the bark has deep cracks, the branches of the stem are light, soft and thin, and the lines are very clear.
The leaves of Campanula are opposite, the leaves are papery, the edge of the leaves is long with sparse serrations, palmlike compound leaves, its petiole is very long, with 4 to 5 leaflets, the leaflets are whorled, the shape is oval, the whole leaf or has sparse teeth, the leaves have brown fine villi, the apex is sharp, the leaf surface is rough.
Its calyx tube is tubular, with irregular cracking, the Corolla is golden yellow, funnel-shaped, growing about 2.5 to 8 cm, with 5 cracks, shaped like a wind bell.