In botany, a peduncle is a stalk supporting an inflorescence or a solitary flower, or, after fecundation, 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). [1 ...

What is a rachis? The rachis is the main stem that bears the inflorescence. It is found above the peduncle. The flowers are actually present on the rachis. What is umbel inflorescence? It is a type of inflorescence that looks like an umbrella. It has numerous short pedicels to hold the flowers. Also, the peduncle is much reduced.

Feb 2, 2023 · It is an aggregation or cluster of flowers displayed in a specific pattern for a particular plant species. The stem holding this whole reproductive portion of a plant is called a peduncle. The major axis above the peduncle called rachis bears the …

What's the difference between petiole and rachis? (n.) A leafstalk; the footstalk of a leaf, connecting the blade with the stem. See Illust. of Leaf. (n.) A stalk or peduncle.

Mar 27, 2024 · Pedicel and peduncle are both botanical terms referring to parts of flowering plants. A pedicel is the stalk that connects an individual flower to the main stem or inflorescence of the plant. It supports the flower and often has small structures like sepals attached to it.

The central axis of the inflorescence, starting at the point where the first inflorescence branch is attached, is called the rachis. The rachis may subdivide one or more times, and these subdivisions are considered part of the rachis. Finally, there is a short stalk connecting the flower to the rachis; this is called the pedicel.

In plants, a rachis is the main axis of a compound structure. It can be the main stem of a compound leaf, such as in Acacia or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle. Where it subdivides into further branches, these are known as rachillae (singular rachilla).

The stalk of a whole inflorescence is the peduncle. The axis of the inflorescence is the rachis. The stalk of an individual flower is the pedicel. Sometimes bracts are found below the whole inflorescence or below each individual flower (the bracts are difficult to see in this photo).

Jun 20, 2019 · 1. The main stem that runs from the peduncle down through the cluster of grapes. 2. Axis of a compound leaf or compound inflorescence.

Sep 5, 2017 · The grape cluster consists of peduncle, cap stems (also known as pedicels), rachis, and several berries. Depending on the variety, there is a big difference in the size and shape of the cluster, as well as in the shape, size, and color of …