Anchusa arvensis is a plant species of the genus "Anchusa". "Sehirus luctuosus" feeds on species of "Anchusa". This way taxonomy and phylogeny with respect to "Anchusa" can become completely analogous. These include different species of Lithospermum, Arnebia, Alkanna, Anchusa, Echium and Onosma. The subclade of the subgenus "Anchusa" (containing "Anchusa capensis") is largely unresolved. Most common species are ones like Carduus nutans, Jacobaea vulgaris, Melilotus albus and Anchusa officinalis. The genus "Anchusa" is commonly used in trough or rock gardens. HMS "Anchusa" was a that served in the Royal Navy. The genus Anchusa belongs to the borage family (Boraginaceae). There are four subgenera &colon; "Buglossum", "Buglossoides", "Buglossellum" and "Anchusa". Anchusa crispa is a species of plant in the family Boraginaceae. "Anchusa arvensis" flowers April to September in the UK. The "Anchusa" class of corvettes or convoy sloops were completed in 1917 and 1918. The genus "Anchusella" Bigazzi et al. is sometimes included in "Anchusa". "Anchusa arvensis" is found in arable field margins, sandy heaths, disturbed ground.