Kiwi family
Actinidiaceae Engl. & Gilg

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Kiwi family

Actinidiaceae Engl. & Gilg

マタタビ科

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A family of woody climbing plants centered in East Asia, comprising about 360 species. In Japan, Actinidia polygama (silver vine), A. arguta (hardy kiwi), and A. kolomikta are native; A. arguta is closely related to kiwifruit. Kiwifruit (Actinidia deliciosa) is the most well-known fruit of this family.

Key Characteristics

  • Climbing deciduous or evergreen woody plants
  • Leaves are simple, alternate, with serrate margins
  • Flowers are white to pale yellow, pentamerous, with numerous stamens
  • Fruit is a berry (kiwi-type) containing numerous seeds
  • Many species are dioecious

Morphological Traits

A family may include species with different trait values — multiple values indicate the range within the family.

Leaf arrangement

Alternate

Leaf type

Simple

Venation

Pinnate

Leaf margin

Serrate / Entire

Growth form

Shrub / Tree / Vine

Evergreen/Deciduous

Deciduous

Leaf dissection

Undivided

Stipules

Present

Flower symmetry

Actinomorphic

Petal count

Many

Ovary position

Superior

Stamen count

3-4

Plant sex

Dioecious / Hermaphrodite / Monoecious

Phylogenetic Position

Angiosperms > Eudicots > Core Eudicots > Ericales > Actinidiaceae

Divergence Era

Paleogene (ca. 55 million years ago)

Representative Genera

マタタビ属(Actinidia)サルスベリ属内マタタビ類

Related Evolution Events

  • Evolution into woody climbers adapted to ascending within forest canopies
  • Evolution of secondary metabolites such as actinidine lactones that attract felids
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Plants in Kiwi family on this site

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