A simple pinnate (unipinnate) frond of the fern Blechnum appendiculatum. Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis.

The meaning of PINNATE is resembling a feather especially in having similar parts arranged on opposite sides of an axis like the barbs on the rachis of a feather. How to use pinnate in a sentence.

Is your compound leaf pinnate or palmate? And if it's pinnate, is it pinnate odd, pinnate even, or twice pinnate? Find the answers easily with this illustrated guide.

2023年10月19日 · A pinnate leaf can be simple, where the blade is undivided, or compound, divided into leaflets arranged along an axis or rachis like a feather. Simple leaves with pinnate venation are found on native trees like the beech, birch, black gum, holly, oak, and …

Compound leaves may be pinnate with pinnae (leaflets) on both sides of a rachis (axis), or may be palmate with multiple leaflets arising from a single point. [1] Leaf structure is described by several terms that include: Bipinnate leaf anatomy with labels showing alternative usages A ternate compound leaf with a petiole but no rachis (or rachillae)

2017年11月11日 · PINNATE meaning: 1. A pinnate leaf is a type of compound leaf that has a central stem with small leaves arranged on…. Learn more.

PINNATE definition: 1. A pinnate leaf is a type of compound leaf that has a central stem with small leaves arranged on…. Learn more.

PINNATE definition: like a feather in appearance | Meaning, pronunciation, translations and examples

Resembling a feather in having parts or branches arranged on each side of a common axis: pinnate leaves; pinnate gills.

2025年1月30日 · DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘pinnate'. Views expressed in the examples do not …