| Aegonychon purpurocaeruleum | 
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| Scientific classification | 
| Kingdom: | Plantae | 
 
| Clade: | Tracheophytes | 
 
| Clade: | Angiosperms | 
 
| Clade: | Eudicots | 
 
| Clade: | Asterids | 
 
| Order: | Boraginales | 
 
| Family: | Boraginaceae | 
 
| Genus: | Aegonychon | 
| Species: | A. purpurocaeruleum | 
| Binomial name | 
| Aegonychon purpurocaeruleum 
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| Synonyms | 
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Aegonychon repens Gray (1821 publ. 1822)Buglossoides purpurocaeruleum (L.) I.M.Johnst. (1954)Lithospermum caeruleum Gueldenst. (1791)Lithospermum longiflorum Salisb. (1796)Lithospermum lucanum N.Terracc. (1907)Lithospermum pumilum Lehm. (1818)Lithospermum purpurascens Gueldenst. (1787)Lithospermum purpureum Gueldenst. (1787)Lithospermum purpurocaeruleum L. (1753)Lithospermum repens Stokes (1812)Lithospermum violaceum Lam. (1779)Margarospermum purpurocaeruleum (L.) Opiz (1839)Myosotis fruticosa Haenke (1786), nom. nud.Rhytispermum purpurocaeruleum (L.) Link (1829)
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Aegonychon purpurocaeruleum, commonly known as the purple gromwell, is a herbaceous perennial rhizomatous flowering plant and it belongs to the family Boraginaceae.