羽う状じょう複ふく葉よう

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Meanings

1

pinnate compound leaf

Botanical term for a compound leaf with leaflets arranged along a central axis, resembling a feather.

Rose leaves are pinnate compound leaves.

この植しょく物ぶつは羽う状じょう複ふく葉ようを持もち、小しょう葉ようが対たい生せいする。

This plant has pinnate compound leaves, with leaflets arranged oppositely.

掌しょう状じょう複ふく葉よう
Palmate compound leaf, where leaflets radiate from a single point like fingers from a palm, unlike the feather-like arrangement of 羽状複葉.
単たん葉よう
Simple leaf, not divided into leaflets, contrasting with the compound structure of 羽状複葉.

From 羽状 (feather-shaped) + 複葉 (compound leaf). The term is a direct calque of the English 'pinnate compound leaf' or its Latin equivalent.