Flavonolignan

Flavonolignans identified in Silybum marianum (milk thistle) silymarin complex include silibinin, silychristin, silydianin, dehydrosilybin, deoxysilycistin, deoxysilydianin, silandrin, silybinome, silyhermin and neosilyhermin and can be produced in vitro.

[4] Hydnocarpin can be found naturally in Onopordon corymbosum[5] and can be synthesised.

[8] Three flavonolignans derived from the flavone tricin have been isolated from the herb Avena sativa.

[11] Rhodiolin, the product of the oxidative coupling of coniferyl alcohol with the 7,8-dihydroxy grouping of the flavonol herbacetin, can be found in the rhizome of Rhodiola rosea.

[13] A 2022 research has concluded that flavonolignans "reduce the virulence of antibiotic-resistant bacterial strains".