Apetalae - without petals Amentiferae - no petal-like parts Fagaceae - oak (Quercuc) Juglandaceae - walnut (Carya) Salicaceae - willow (Salix) Apetalae - without petals Floriferae - appear to have petals Ulmaceae - elm (Ulmus) Urticaceae - nettle (Urtica) Cannabinaceae - hemp (Cannabis) Chenopodiaceae - goosefoot (Chenopodium) Moraceae - mulberry (Morus) Polygonaceae - buckwheat (Rumex) Polypetalae - free petals Hypogynous - superior ovary Linaceae - flax (Linum) Malvaceae - okra (Hibiscus) Guttiferae - st. john's wort (Hypericum) Crassulaceae - stonecrop (Sedum) Oxalidaceae - wood sorrel (Oxalis) Cruciferae - mustard (Caspella) Portulacaceae - purslane (Claytonia) Caryophyllaceae - chickweed (Cerastium) Nymphaeaceae - water lily (Nymphaea) Geraniaceae - geranium (Erodium) Ranunculaceae - buttercup (Ranunculus) Fumariaceae - dutchman's breeches (Dicentra) Euphorbiaceae - poinsettia (Euphorbia) Polypetalae - free petals Epigynous - inferior ovary Umbelliferae - carrot (Daucus) Onagraceae - evening primrose (Oenothera) Cactaceae - cactus (Opuntia)

Polypetalae - free petals Perigynous - ovary neither superior nor inferior Aceraceae - maple (Acer) Saxifragaceae - saxifraga (Hydrangea) Anacardiaceae - sumac (Rhus) Rosaceae - rose (Rosa) Leguminosae - pea (Trifolium) Violaceae - violet (Viola) Sympetalae - united petals Hypogynous - superior ovary Plantaginaceae - plantain (Plantago) Boraginaceae - borage (Borago) Convolvulaceae - morning glory (Convolvulus) Asclepiapaceae - milkweed (Asclepias) Ericaceae - heath (Pyrola) Polemoniaceae - phlox (Phlox) Apocynaceae - dogbane (Apocynum) Oleaceae - jasmin (Olea) Solanaceae - potato (Solanum) Labiatae - mint (Lamium) Scrophulariaceae - figwort (Veronica) Sympetalae - united petals Epigynous - inferior ovary Compositae - dandelion (Taraxacum) Caprifolaiaceae - honeysuckle (Lonicera) Rubiaceae - bedstraw (Galium) Valerianaceae - valerian (Valeriana)