Unicorn plant family
Martyniaceae

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Unicorn plant family

Martyniaceae

ツノゴマ科

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A small family containing Proboscidea and related genera. About 5 genera and 16 species are known, mainly native to tropical America. Fruits bear long hooked horns that entangle in animal hooves and fur for a unique dispersal strategy.

Key Characteristics

  • Fruits with long hooked horns (claws)
  • Corolla sympetalous, zygomorphic and bilabiate
  • Stamens 4 (didynamous)
  • Leaves opposite or alternate, with sticky glandular hairs
  • Epizoochory (fruits attach to animal hooves and fur)

Morphological Traits

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

Leaf arrangement

Alternate / Opposite

Leaf type

Simple

Venation

Pinnate

Leaf margin

Entire

Growth form

Herb

Evergreen/Deciduous

Deciduous

Stipules

Absent

Flower symmetry

Zygomorphic

Petal count

Many

Petal fusion

Fused

Ovary position

Superior

Stamen count

5

Plant sex

Hermaphrodite

Phylogenetic Position

Angiosperms > Eudicots > Core eudicots > Lamiales > Martyniaceae

Divergence Era

Neogene to Quaternary

Representative Genera

ツノゴマ属(Proboscidea)マルティニア属(Martynia)

Related Evolution Events

  • Evolution of epizoochory via hooked horns for attachment to large mammals (ungulates)
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Plants in Unicorn plant family on this site

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