Two-flowered hackberry (Celtis biflora)

Iguana hackberry Cambrón Granjeno huasteco
Silhouette: T. Michael Keesey / License

Celtis biflora: Characteristics and Ecological Role

Recognized for its tough, spiny branches and ecological significance, Celtis biflora plays a crucial role in tropical and subtropical habitats. Botanists now largely classify this taxon within the broader circumscription of Celtis iguanaea, noting its wide distribution across the Americas. The plant often forms dense, impenetrable thickets that offer shelter and food for various wildlife species, particularly birds and reptiles.

Taxonomy

  • ∟ царство Plantae
  • ∟ division Tracheophytes (Vascular Plants)
  • ∟ subdivision Spermatophytes (Seed plants)
  • ∟ Angiosperms
  • ∟ mesangiosperms
  • ∟ eudicots
  • ∟ Superrosids
  • ∟ rosids
  • ∟ order Rosales
  • ∟ family Cannabaceae (Hemp family)
  • ∟ genus Celtis (Hackberry)
  • ∟ species Celtis biflora (Two-flowered hackberry)

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Morphology

Celtis biflora develops into a robust shrub or small tree, characterized by zigzagging branches armed with sharp, recurved spines. Its leaves are distinctly veined, presenting a rough texture and serrated margins that help differentiate it from similar regional flora.

Small, pale green to yellowish flowers emerge in clusters at the leaf axils. Following pollination, the plant yields small, fleshy stone fruits that turn a vibrant orange-yellow when fully ripe.

Flowering season

Spring

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Name
Dec

Applications

The tough, flexible branches have historically been adapted into rudimentary tools or fencing materials by indigenous populations. The sweet fruit is safe for human consumption and can be eaten fresh.

Ecologically, the thicket-forming nature of the plant provides vital erosion control along riverbanks and dry ravines.

Interesting facts

  • Botanical nomenclature updates have merged this name into the wider classification of Celtis iguanaea.
  • The stipular spines are a remarkable evolutionary adaptation that serves both as a deterrent against large herbivores and as a climbing mechanism.
  • Seeds of this plant are primarily dispersed endozoochorously, meaning they must pass through the digestive tracts of birds and reptiles.

Geography of distribution

  • United States
  • Mexico
  • Brazil
  • Colombia

Sources

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

Technical Information

External Databases: POWO, Tropicos

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