stipule

American  

[stip-yool] / ˈstɪp yul /

noun

Botany.

1. one of a pair of lateral appendages, often leaflike, at the base of a leaf petiole in many plants.

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stipule British  

/ ˈstɪpjuːl, ˈstɪpjʊlə /

noun

1. a small paired usually leaflike outgrowth occurring at the base of a leaf or its stalk

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stipule Scientific  

/ stĭp′yo̅o̅l /

1. One of the usually small, paired parts resembling leaves at the base of a leafstalk in certain plants, such as roses and beans.

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Other Word Forms

• stipular adjective

Etymology

Origin of stipule

1785–95; < Latin stipula stalk, noun use of feminine of *stipulus firm (recorded in LL); akin to stipes

Example Sentences

Root-leaves with a sheathing stipule within the petiole.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa

Here we have another modification, a development of the "stipule," that tiny pointed growth common to many leaves, and particularly notable at the base of a rose leaf.

From Eye Spy Afield with Nature Among Flowers and Animate Things by Gibson, W. Hamilton (William Hamilton)

Stipel, a stipule of a leaflet, as of the Bean, &c.

From The Elements of Botany For Beginners and For Schools by Gray, Asa

At first a sheathing stipule, like a little leafy ruffle, grows at the base of each leaf, but this is shed before midsummer.

From Trees Worth Knowing by Rogers, Julia Ellen

At other times they become united in such a manner as to produce a single notched stipule opposite to the leaf.

From Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants by Masters, Maxwell T.

Related Words

• frond
• needle
• petal
• stalk