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Pinnate is a term used to describe feather
Feather

Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds. They are considered the most complex integumentary structures found in vertebrates....
-like or multi-divided features arising from both sides of a common axis in plant
Plant

Plants are Life organisms belonging to the Kingdom Plantae. They include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae....
 or animal
Animal

Animals are a major group of multicellular, eukaryotic organisms of the Kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life....
 structures, and comes from the Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread throughout the Mediterranean and a large part of Europe....
 word pinna for "feather". A similar term is pectinate, which refers to a comb
Comb

A comb is a device made of solid material, generally flat, always toothed, and is used in hair care for straightening and cleaning hair or other fibers....
-like arrangement of parts (arising from one side of an axis). The term contrasts somewhat with palmate
Leaf shape

In botany, the following terms are used to describe the shape of plant leaf:* Acicular : Slender and pointed, needle-like* Acuminate : Tapering to a long point...
, in which the parts or structures radiate out from a common point.


nically, the term describes an arrangement of discrete structures (such as leaflets, veins, lobes, branches, or appendages) arising at multiple points along a common axis.






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I need examples of bipinnate odd and bipinnate even leaves for a biology project. can anyone help ...
can anyone please give me examples of bipinnate odd and bipinnate even leaves? I need this for a s...
plants with pinnate leaf structure








Encyclopedia


Pinnate is a term used to describe feather
Feather

Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds. They are considered the most complex integumentary structures found in vertebrates....
-like or multi-divided features arising from both sides of a common axis in plant
Plant

Plants are Life organisms belonging to the Kingdom Plantae. They include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae....
 or animal
Animal

Animals are a major group of multicellular, eukaryotic organisms of the Kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life....
 structures, and comes from the Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread throughout the Mediterranean and a large part of Europe....
 word pinna for "feather". A similar term is pectinate, which refers to a comb
Comb

A comb is a device made of solid material, generally flat, always toothed, and is used in hair care for straightening and cleaning hair or other fibers....
-like arrangement of parts (arising from one side of an axis). The term contrasts somewhat with palmate
Leaf shape

In botany, the following terms are used to describe the shape of plant leaf:* Acicular : Slender and pointed, needle-like* Acuminate : Tapering to a long point...
, in which the parts or structures radiate out from a common point.

Fern Frond Pinnate

Plants

Botanically, the term describes an arrangement of discrete structures (such as leaflets, veins, lobes, branches, or appendages) arising at multiple points along a common axis. For example, once-divided leaf blades having leaflets arranged on both sides of a rachis
Rachis

The rachis is the main axis of the inflorescence, or spike, of wheat and other cereals, to which the spikelets are attached. It is also the part of the axis that the pinnae are attached to in ferns, the main stem of a compound leaf , or the main axis in compound inflorescences in other angiosperms....
 are pinnately compound leaves. Many palms (notably the feather palms) and most cycad
Cycad

File:Cycad cone.jpgCycads are a group of seed plants characterized by a large crown of compound Leaf and a stout trunk . They are evergreen, gymnospermous, dioecious plants having large pinnately compound leaves....
s and grevillea
Grevillea

Grevillea is a diverse genus of about 360 species of evergreen flowering plants in the protea family Proteaceae, native to Australia, New Guinea, New Caledonia, and Sulawesi....
s have pinnately divided leaves. Most species of fern
Fern

A fern is any one of a group of about 20,000 species of plants classified in the phylum or division Pteridophyta, also known as Filicophyta....
s have pinnate or more highly divided frond
Frond

A frond is a large leaf with many divisions to it, and the term is typically used for the leaves of Arecaceaes, ferns or cycads. A frond is the leaf- like structure of a fern or alga....
s, and in ferns the leaflets are typically referred to as "pinnae" (singular "pinna"). Plants with pinnate leaves are sometimes colloquially called "feather-leaved".

pinnatifid and pinnatipartite – leaves with pinnate lobes that are not discrete, remaining sufficiently connected to each other that they are not separate leaflets.

paripinnate – pinnately-compound leaves in which leaflets are born in pairs along the rachis without a single terminal leaflet; also called "even-pinnate".

imparipinnate – pinnately-compound leaves in which there is a lone terminal leaflet rather than a terminal pair of leaflets; also called "odd-pinnate".

bipinnate – pinnately-compound leaves in which the leaflets are themselves pinnately-compound; also called "twice-pinnate".

tripinnate – pinnately-compound leaves in which the leaflets are themselves bipinnate; also called "thrice-pinnate".

tetrapinnate – pinnately-compound leaves in which the leaflets are themselves tripinnate.

Animals

In animals, pinnate is used to describe feather-like structures:
  • Some muscles can be unipinnate or bipinnate muscles
  • The fish, Platax pinnatus
    Platax pinnatus

    Platax pinnatus, also known as Dusky batfish or Red Faced Batfish is a fish from the western Pacific that occasionally is kept in marine aquariums....
    , is known as the pinnate spadefish or pinnate batfish.


See also


  • Leaf shape
    Leaf shape

    In botany, the following terms are used to describe the shape of plant leaf:* Acicular : Slender and pointed, needle-like* Acuminate : Tapering to a long point...