lithosperm
/ˌlɪθəˈsperm/ or /ˌlɪθoʊˈsperm/Definitions
1. noun
A genus of flowering plants in the family Boraginaceae, native to Europe, Asia, and North America, and widely cultivated as an ornamental.
“The botanical garden had a variety of lithosperm species, including Lithospermum ruprechtii and Lithospermum purpureocaeruleum.”