Succubous

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The term succubous is used to describe the way in which the leaves of a leafy liverwort are attached to the stem. If you were to look down from above (dorsal side) on a liverwort where the leaf attachment is succubous, the lower edge of each leaf would overlap the next lower leaf along the stem. Because of this, the lower edge of each leaf is visible from above, but the edge of the leaf closer to the tip of the stem is obcured by a neighboring leaf. The opposite of succubous is incubous.

The terms have their origin in certain kinds of revenants that attack people in their sleep.