Definition - What does Bipinnate mean?
In botany, bipinnate refers to compound leaf structures consisting of leaflets that are normally arranged in pairs. Common trees with bipinnate leaves include honey locust, black locust, pecan, and hickory. Cosmos flowers are also known for their pinnate and bipinnate feathery-style leaves. Twice divided, bipinnate leaves usually have 7 to 21 pairs of opposite leaflets.
MaximumYield explains Bipinnate
Some plants with bipinnate leaves, such as the Mimosa Pudica, can be quite delicate and require extra care. Indeed, Mimosa Pudica is reputed for its fragile, slender stems and fuzzy bipinnate leaves that are particularly receptive to pests and damage.
In fact, because they are so fragile, simply moving, touching, or blowing on the leaves may encourage them to fold inward. This particular plant can produce up to 26 leaflets per pinna.
In most bipinnate plants, the axillary buds can be found between the axil and the stem.