fruticosa has small, yellow, semi-nodding, bell-shaped flowers with red anthers. 'Mongolian Gold' is believed to be a selected form of it available in the US.

Approximate height: 0.5 - 1.5 metres
Flowering period(s): Jul Aug Sep
Aspect: Any aspect
Pruning: Hard prune (Group 3)
Country of origin: China & Mongolia
Parentage: Species
Other name(s): None known

Further detail:

Flower diameter: 2-4.5cm
Tepals: 4, broad but pointed