Typical beardless-flowered ailanthus (Ailanthus imberbiflora var. imberbiflora)

White siris White bean
Silhouette: T. Michael Keesey / License

Ailanthus imberbiflora var. imberbiflora - Australian Rainforest Variety

Mainly inhabiting the coastal and sub-tropical rainforests of eastern Australia, Ailanthus imberbiflora var. imberbiflora grows as a tall, slender tree within dense forest canopies. This variety is recognized for its adaptation to high-humidity environments and well-drained volcanic soils.

It contributes significantly to the structural diversity of the local rainforest ecosystem.

Taxonomy

  • царство Plantae
  • division Tracheophytes (Vascular Plants)
  • subdivision Spermatophytes (Seed plants)
  • Angiosperms
  • mesangiosperms (Core angiosperms)
  • eudicots
  • Superrosids
  • rosids
  • malvids
  • order Sapindales
  • family Simaroubaceae (Quassia family)
  • genus Ailanthus (Tree of heaven)
  • species Ailanthus imberbiflora (Smooth-flowered Tree of Heaven)
  • variety Ailanthus imberbiflora var. imberbiflora (Typical beardless-flowered ailanthus)

Living Pulse

Morphology

This variety can grow up to 30 meters tall, featuring a smooth, pale grey bark that becomes slightly fissured as it matures. The compound pinnate leaves have leaflets that are distinctly asymmetrical, often falcate, and have a glabrous (hairless) surface.

Key morphological features include:

  • Flowers: Small, inconspicuous greenish-yellow flowers grouped in terminal panicles.
  • Fruit: Winged samaras that are dry and papery, facilitating dispersal by wind.
  • Foliage: Unlike some other varieties, the leaves are mostly glabrous, which distinguishes its taxonomic status.

Flowering season

Flowers from November to January

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Applications

The lightweight and straight-grained wood has been used historically in cabinet making, joinery, and for producing light packing cases.

It is also planted in forest restoration projects to help rebuild native subtropical rainforest habitats.

Interesting facts

The wings of the samara fruit are aerodynamically structured, allowing them to spin and drift significant distances from the parent tree.

Additionally, it serves as a host plant for several native Australian caterpillar species.

Geography of distribution

  • Australia

Sources

  • POWO: Plants of the World Online
  • GBIF: Global Biodiversity Information Facility
  • WFO: World Flora Online

See also

True Araucarias

True Araucarias

Araucaria sect. Araucaria

Araucaria sect. Araucaria is a botanical section of evergreen conifers native to South America. It …