Veined Gironniera (Gironniera nervosa)

Siluk Hampas tebu daun bulu
Silhouette: T. Michael Keesey / License

Gironniera nervosa: Taxonomy, Characteristics, and Distribution

Endemic to the dense, humid forests of Southeast Asia, Gironniera nervosa thrives as a fascinating tropical tree within the canopy. First described scientifically by Jules Émile Planchon in 1848, this species forms an integral part of the regional ecosystem. It belongs to the family Cannabaceae, having been reclassified from its previous placement in Ulmaceae based on molecular phylogenetic studies.

As a forest-dwelling species, it contributes to the canopy structure and ecological dynamics of its native habitats. Its natural range spans across the Indochinese Peninsula and the Malay Archipelago, establishing deep roots in the warm ecosystems characteristic of these regions.

Taxonomy

  • ∟ царство Plantae
  • ∟ division Tracheophytes
  • ∟ subdivision Spermatophytes (Seed plants)
  • ∟ Angiosperms
  • ∟ mesangiosperms
  • ∟ eudicots
  • ∟ Superrosids
  • ∟ rosids
  • ∟ order Rosales
  • ∟ family Cannabaceae (Hemp family)
  • ∟ genus Gironniera (Gironnier tree)
  • ∟ species Gironniera nervosa (Veined Gironniera)

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Morphology

Members of the genus Gironniera generally emerge as evergreen trees or shrubs. The foliage of Gironniera nervosa typically features alternate, simple leaves with distinctive venation patterns, an attribute hinted at by its specific epithet nervosa. The leaves often exhibit noticeable pubescence, reflecting the structural texture described in several of its local common names.

The plant produces small, inconspicuous flowers typical of many Cannabaceae species adapted to wind pollination. The fruit develops into a fleshy drupe, serving as a vital food source for local avian and mammalian frugivores that aid in seed dispersal across the forest floor.

Interesting facts

The specific epithet nervosa derives from Latin terminology, referring directly to the conspicuous and prominent veins traversing the leaves of this species.

In local Malay taxonomy, populations refer to the plant as 'hampas tebu daun bulu', a phrase that vividly translates into descriptors highlighting its hairy leaves and unique structural texture.

Geography of distribution

  • Malaysia
  • Singapore
  • Thailand
  • Indonesia
  • Myanmar
  • Laos
  • Vietnam
  • Brunei

Sources

  • POWO (Plants of the World Online) - Facilitated by the Royal Botanic Gardens, Kew.
  • GBIF (Global Biodiversity Information Facility).
  • Tropicos.org - Missouri Botanical Garden.

Technical Information

External Databases: GBIF, POWO, Tropicos

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