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A leaf with three leaflets subdivided into three different sections.

Biternate Leaf

A leaf with three leaflets subdivided into three different sections.

A leaf with three leaflets.

Ternate Leaf

A leaf with three leaflets.

"A genus of clover-like plants of the natural order Leguminosae, with ternate leaves, differing from the clovers in the generally elongated racemes o flowers, the stamens not adhering to the corolla, and the 1-3 seeded tumid pods. All species have a strong peculiar sweetish smell, which becomes more agreeable when they are dried, and is owing to the presence of Coumarin." — Chambers, 1881

Melilot

"A genus of clover-like plants of the natural order Leguminosae, with ternate leaves, differing from…