Leaves
Petiole

Leaf stalk.
| absent (leaf blade sessile) | Without petiole or petiolule. |  | 
| long-petiolate (compound leaf) | ||
| long-petiolate (simple leaf) | With a petiole. |  | 
| progressively shorter up the stem | ||
| subsessile | 

Leaf stalk.
| absent (leaf blade sessile) | Without petiole or petiolule. |  | 
| long-petiolate (compound leaf) | ||
| long-petiolate (simple leaf) | With a petiole. |  | 
| progressively shorter up the stem | ||
| subsessile | 
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