Aparinanthus muralis Aparine minima Aspera nutans Sherardia muralis Valantia filiformis Valantia rupestris Galium fragile Galium minimum Aspera muralis Galium murale var. troodi Galium murale f. hispidulum Galium murale var. balearicum Galium murale f. laevis Galium murale var. laxum Galium murale f. villosum Galium fragile Galium apsheronicum Galium calvipes Galium filiforme Galium murale f. laeve
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024