involucrum

American  

[in-vuh-loo-kruhm] / ˌɪn vəˈlu krəm /

noun

plural

involucra

1. involucre.

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Etymology

Origin of involucrum

1670–80; < New Latin, Latin involūcrum a wrap, cover, equivalent to involū- (variant stem of involvere to wrap, cover; see involute) + -crum instrumental suffix

Example Sentences

This clinging quality arises from the bracts of the involucrum being long and stiff, and with hooked tips which attach themselves to every passing object.

From The plant-lore & garden-craft of Shakespeare by Ellacombe, Henry Nicholson

Its general umbel is destitute of an involucrum.

From Lachesis Lapponica A Tour in Lapland, Volume 1 by Linn?, Carl von

Said involucrum is composed of numerous small leaves, a distinguishing trait from its nearest relative genus Rudbeckia.

From Hardy Perennials and Old Fashioned Flowers Describing the Most Desirable Plants, for Borders, Rockeries, and Shrubberies. by Wood, John

A little later the involucrum becomes developed, and is no unimportant feature.

From Hardy Perennials and Old Fashioned Flowers Describing the Most Desirable Plants, for Borders, Rockeries, and Shrubberies. by Wood, John

The leaves are triternate, divisions deeply cut and acute; the leaves of the involucrum are stalked, trifid, and deeply cut.

From Hardy Perennials and Old Fashioned Flowers Describing the Most Desirable Plants, for Borders, Rockeries, and Shrubberies. by Wood, John