Snapdragon (Figwort) 26 Are nearly radially symmetrical but the lowest of the 4 petals is smaller, and may be a different color than the other 3. See Bilateral Symmetry Group for most of the snapdragons.
Mustard 24 Flowers usually in racemes or branched clusters. Seedpods are often long and slender and at right angles to the stem or pointing upward, but may be broad to oval. Seedpods often present when flowers are still blooming higher in the raceme.
Evening Primrose 11 Flowers are showy with large petals and cross-shaped stigma. Leaves simple and alternate or opposite.
Bedstraw (Madder) 10 Flowers are small or tiny and in branched clusters. Stems square and often bristly in Galium, the most common genus in our region.
Heath 9 See 5-petal section
Dogwood 8 Mostly shrubs or small trees. Usually have small 4-part flowers surrounded by 4 large, white or pink, petal-like bracts. Fruits are berry-like.
Olive 6 The small flowers are 4-part. May be trees (Ashes) with pinnately compound leaves and clusters of keys for fruit, or shrubs (Privits) with simple leaves and berry-like fruit.
Sedum (Orpine) 5 See 5-petal section
Buckthorn 3 Shrubs (or vines or trees) with simple, alternate leaves and flowers with a cup-like 4- or 5-sepal calyx. Petals may be absent.
Witch-hazel 2 Trees or shrubs with alternate simple leaves. Witch hazel proper has small clusters of 4-petaled flowers blooming in the fall. Sweetgum has tiny flowers in clusters and the fruit is a prickly ball containing many individual capsules.
Staff-Tree 2 See 5-petal section
Teasel 1 Large, prickly plants have small flowers in an egg-shaped head ringed by long, slender, rigid, prickly bracts. The corolla is 4-lobed.
Carpetweed 1 See 5-petal section
Oleaster/Eleagnus 1 Shrubs or small trees with simple, smooth-edged leaves. The small tubular flowers have a 4-lobed corolla-like calyx. Fruit is a small drupe with 1 seed.
Soapberry 1 Trees with pinnately compound leaves, clusters of flowers with 4 petals and fruit that is a 3-angled papery capsule.