Ceratostigma plumbaginoides Bunge

Perennial herb to about 50 cm tall. Stems slightly zig-zag, woody at the base few if any bristly hairs. Leaves obovate, to about 8 cm long, hairless. Flowers about 2.5 cm long, dark blue.

W China

Source: Spencer, R. (1997). Plumbaginaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.

Distribution map
kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Caryophyllanae
order      Caryophyllales
family       Plumbaginaceae
genus        Ceratostigma Bunge