Peduncle (botany)
Stalk of a plant bearing an inflorescence or solitary flower
In botany, a peduncle is a stalk supporting an inflorescence or a solitary flower, or, after fertilisation, an infructescence or a solitary fruit. The peduncle sometimes has bracts (a type of cataphyll) at nodes. The main axis of an inflorescence above the peduncle is the rachis, which hosts flowers (as opposed to directly on the peduncle).
When a peduncle arises from the ground level, either from a compressed aerial stem or from a subterranean stem (rhizome, tuber, bulb, corm), with few or no bracts except the part near the rachis or receptacle, it is referred to as a scape.
The acorns of the pedunculate oak are borne on a long peduncle, hence the name of the tree.
Sources and credits
This article is adapted from the Wikipedia article “Peduncle (botany)”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Agave with emergent peduncle IMG 5336.JPG by JonRichfield, CC BY-SA 3.0
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