bipinnate

American  

[bahy-pin-eyt] / baɪˈpɪn eɪt /

adjective

Botany.

1. pinnate, as a leaf, with the divisions also pinnate.

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bipinnate British  

/ baɪˈpɪnˌeɪt /

adjective

1. (of pinnate leaves) having the leaflets themselves divided into smaller leaflets

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bipinnate Scientific  

/ bī-pĭn′āt′ /

1. Relating to compound leaves that grow opposite each other on a larger stem; twice-compound or twice-pinnate. Bipinnate leaves have a feathery appearance. The acacia, coffeetree, and silktree have bipinnate leaves.

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Other Word Forms

Derived Forms

• bipinnately
  adverb

Etymology

Origin of bipinnate

From the New Latin word bipinnātus, dating back to 1785–95; see bi- ¹, pinnate

Example Sentences

“There were two options: You move the house, or the tree dies,” says Duprat, 69, on a temperate afternoon this past August, standing beneath its delicate bipinnate leaves.

From New York Times • Mar. 22, 2024

The leaves are stalked bipinnate; leaflets three-parted, cut, and glaucous; there are few plants with more handsome foliage, and its beauty is further enhanced by the gracefully bending habit of the whole compound leaf.

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

Fronds one to three feet high, broadly lanceolate, or ovate-oblong, tapering towards the apex, bipinnate.

From The Fern Lover's Companion A Guide for the Northeastern States and Canada by Tilton, George Henry

Stem and branches pinnate or bipinnate, the pinnae and pinnules alternate.

From Narrative of the Voyage of H.M.S. Rattlesnake, Commanded By the Late Captain Owen Stanley, R.N., F.R.S. Etc. During the Years 1846-1850. Including Discoveries and Surveys in New Guinea, the Louisiade Archipelago, Etc. to Which Is Added the Account of Mr. E.B. Kennedy's Expedition for the Exploration of the Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist to the Expedition. — Volume 1 by MacGillivray, John

Pinnule, a secondary division of a bipinnate or tripinnate leaf, 66.

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