campanula erinus, galium murale, sedum stellatum, theligonum cynocrambe, bituminaria bituminosa, campanula dichotoma, mercurialis annua, valantia muralis, achyrophorus valdesii, asplenium ceterach, bidens bipinnata, bromus sterilis, catapodium rigidum, euphorbia peplus, galium aparine, galium verrucosum, geranium purpureum, lamarckia aurea, linaria reflexa, parietaria judaica, parietaria lusitanica, phagnalon saxatile, sedum dasyphyllum, sonchus oleraceus, veronica cymbalaria