Pedicel (botany)

A pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as pedicellate.

Delphinium nuttallianum 15498
The inflorescence of Delphinium nuttallianum. Each flower is held on a pedicel from one to several centimeters long.

Description

Pedicel refers to a structure connecting a single flower to its inflorescence.[1] In the absence of a pedicel, the flowers are described as sessile. Pedicel is also applied to the stem of the infructescence. The word "pedicel" is derived from the latin pediculus, meaning "little foot".[2] The stem or branch from the main stem of the inflorescence that holds a group of pedicels is called a peduncle.[3] A pedicel may be associated with a bract or bracts.[4]

In cultivation

In Halloween types of pumpkin or squash plants, the shape of the pedicel has received particular attention because plant breeders are trying to optimize the size and shape of the pedicel for the best "lid" for a "jack-o'-lantern".[5]

Diagram of flower parts

Gallery

Asclepias amplexicaulis

Long pedicels of clasping milkweed with a single peduncle

314 Prunus avium

Cherry pedicels in flower and fruit

Cucurbita pedicel of mature fruit farmersmarket09093

Pumpkin pedicel

Leonurus cardiaca 0003

Sessile flowers (lacking pedicels) of common motherwort

See also

References

  1. ^ Hickey, M.; King, C. (2001). The Cambridge Illustrated Glossary of Botanical Terms. Cambridge University Press.
  2. ^ Walter William Skeat (1898). An Etymological Dictionary of the English Language (3 ed.). Clarendon Press. p. 430.
  3. ^ Chris Bird, ed. (2014). The Fundamentals of Horticulture: Theory and Practice. Cambridge University Press. p. 136. ISBN 9781107782549.
  4. ^ EB 2019.
  5. ^ Breeding a better pumpkin - Technology & science - Science | NBC News

Bibliography

Pachystoma nutans

Pachystoma nutans, is a species of plant in the orchid family. It is endemic to Myanmar. It was first described by Sing Chi Chen and Yi Bo Luo in 2002. The type specimen of Pachystoma nutans was previously overlooked among unidentified Eulophia species at the Royal Botanic Garden herbarium in Edinburgh. It is only known from the type specimen, which was collected near Mong Yaw, Myanmar.

Peduncle (botany)

In botany, a peduncle is a stem supporting an inflorescence, or after fecundation, an infructescence.The peduncle is a stem, usually green, though some peduncles are more or less florally colored or neutral in color, having no particular pigmentation. In some species, peduncles are leafless, though others bear small leaves, or even cataphylls, at nodes; such leaves generally may be regarded as bracts. The peduncle is the inflorescence base without flowers. When an unbranched peduncle has no obvious nodes, rises directly from a bulb or stem, and especially if it rises apparently directly from the ground, it commonly is referred to as a scape.The acorns of the pedunculate oak are borne on a long peduncle, hence the name of the tree.

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