TriangularTriangular or almost triangular leaves.Amaranthus deflexus (low amaranth)Chenopodiastrum hybridum (mapleleaf goosefoot)Chenopodiastrum murale (nettle-leaved goosefoot)Euphorbia peplus (petty spurge)Galinsoga quadriradiata (hairy galinsoga)Hedera helix (common ivy)Lamium album (white dead-nettle)Lamium galeobdolon (yellow archangel)Lamium purpureum (red dead-nettle)Lapsana communis (common nipplewort)Oxalis acetosella (wood-sorrel)Populus × canadensis (Canadian poplar)Solanum nigrum (black nightshade)Stellaria media (chickweed)Veronica persica (birdeye speedwell)
