Complex sentence: The only known species in the monotypic genus "Erinacea", it is a dwarf, spiny, evergreen shrub growing to a dome shape tall and wide, with dense foliage and lilac coloured pea-like flowers in late spring and early summer.
Split into simpler sentences: The only known species in the monotypic genus "Erinacea", it is a dwarf, spiny, evergreen shrub growing to a dome shape tall and wide. It has dense foliage, and lilac coloured pea-like flowers in late spring and early summer.