bipinnate

9.9

A leaf with leaflets that are divided again into smaller leaflets like a feather

adjective
/ˌbaɪˈpɪneɪt/

Specialized

: bipinnado

Many fern species have bipinnate leaves, creating a delicate, feathery appearance.

Examples

The botanist noted that the acacia's bipinnate foliage allowed more sunlight to reach the plant's lower branches.
By comparing the pinnate and bipinnate leaves, students could easily see the difference in leaf structure.
By comparing the pinnate and bipinnate leaves, students could easily see the difference in leaf structure.
Look at how bipinnate this leaf is!
The fern has bipinnate leaves that look stunning.
Many fern species have bipinnate leaves, creating a delicate, feathery appearance.
The botanist noted that the acacia's bipinnate foliage allowed more sunlight to reach the plant's lower branches.

Synonyms

twice-pinnate

vsbipinnate

Specialized

9.9

A leaf divided twice into pairs of small leaflets

is the same meaning but written as one single word

Compounds

bipinnate leaf

Specialized

8.6

A leaf with each main leaflet divided into smaller leaflets, like on ferns

How Divided

tripinnate

Specialized

9.9

bipinnate

Specialized

9.9

pinnate

Specialized

1 9.6

pinnatifid

Specialized

9.9

entire

Specialized

1 8.3

Surface Forms

bipinnate positive

Morphology

bipinnate = pinnate (transparent) = bi + pinnate

Formed by the productive prefix 'bi-' meaning 'two' added to the botanical adjective 'pinnate', yielding the predictable meaning 'twice-pinnate'.

Etymology

Bipinnate comes from bi- meaning 'two' and pinnate, from Latin pinna meaning 'feather'. So a bipinnate leaf is like a 'double feather', with small leaflets on smaller stems, which explains its two-level, feathery look.