tripinnatifid
Adjective: - (Botany, of a leaf shape) Describing a leaf that is bipinnatifid (twice pinnately divided) with its segments or lobes themselves being pinnatifid (pinnately divided, but not all the way to the central axis). This indicates a complex, multi-level division of the leaf blade.
This is a highly specific botanical term used to describe the morphology of leaves. It is not used in everyday conversation. - The fronds of many ferns are tripinnatifid, creating a very delicate and lacy appearance. - To identify the plant, the botanist noted its tripinnatifid leaves in her description.
The term is part of a precise botanical classification system for leaf dissection. It follows a logical progression: - Pinnatifid: Leaf is lobed, with clefts reaching more than halfway to the midrib. - Bipinnatifid: The primary lobes of a pinnatifid leaf are themselves pinnatifid. - Tripinnatifid: The secondary lobes (of a bipinnatifid leaf) are themselves pinnatifid.
- Pinnatifid (adj): A leaf shape with deep lobes arranged on each side of a central axis.
- Bipinnatifid (adj): A leaf that is twice pinnatifid.
- Pinnate (adj): Having leaflets arranged on either side of a common axis, like a feather.
- Dissected (adj): A general term for leaves that are deeply cut into segments.
- Thrice-pinnately cleft: A descriptive synonym emphasizing the three levels of division.
- Highly dissected: A more general term for leaves with very deep and complex divisions.
- Simple (leaf): A leaf with a single, undivided blade.
- Entire (leaf margin): A leaf margin that is smooth and completely without lobes or teeth.
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(of a leaf shape) bipinnatifid with segments pinnatifid
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