Kidney shapedLeaves reniform (kidney shaped), without a pointed apex, sometimes grading into cordate (heart shaped).Ballota nigra (black horehound)Cymbalaria muralis (ivy-leaved toadflax)Ficaria verna (lesser celandine)Geranium rotundifolium (round-leaved crane’s-bill)Lamium amplexicaule (common henbit)Veronica persica (birdeye speedwell)Viola odorata (sweet violet)
