Yellow royal delonix (Delonix regia var. flavida)

Silhouette: T. Michael Keesey / License

Delonix regia var. flavida - Yellow Royal Poinciana

Gracefully spreading its umbrella-like canopy over dry forest margins, Delonix regia var. flavida features stunning golden-yellow flowers that distinguish it from the common red royal poinciana.

This variety is native to the dry deciduous forests of Madagascar, where the wild populations are highly restricted.

Due to habitat loss, this striking yellow flamboyant remains exceedingly rare in its natural environment.

Taxonomy

  • царство Plantae
  • division Tracheophytes (Vascular Plants)
  • subdivision Spermatophytes (Seed plants)
  • Angiosperms
  • mesangiosperms (Core angiosperms)
  • eudicots
  • Superrosids
  • rosids
  • order Fabales
  • family Fabaceae
  • subfamily Caesalpinioideae
  • genus Delonix (Flamboyant tree)
  • species Delonix regia (Royal Poinciana)
  • variety Delonix regia var. flavida (Yellow royal delonix)

Living Pulse

Morphology

The structural characteristics of Delonix regia var. flavida include a wide-spreading, dome-shaped canopy and a buttressed trunk with smooth, greyish-brown bark.

This growth form provides extensive shade and helps stabilize the tree in sandy soils.

Key morphological details comprise:

  • Flowers: Large, showy blooms with five petals, all of which display a rich golden-yellow color, in contrast to the typical scarlet-red form.
  • Foliage: Deep green, bipinnate leaves that can measure up to 50 centimeters in length, bearing dozens of pairs of pinnae and hundreds of small, oblong leaflets.
  • Fruit: Elongated, heavy, woody pods that turn dark brown or black at maturity and can persist on the tree for many months.

Flowering season

Late spring to mid-summer, typically from November to January.

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Applications

Although Delonix regia var. flavida is rare in the wild, it is highly sought after by botanical gardens and collectors for its ornamental value.

It serves as an important genetic resource for breeding and studying color variations in the genus.

In Madagascar, efforts to conserve this variety help protect the genetic diversity of the species, which is threatened by habitat destruction.

Interesting facts

The name flavida is derived from the Latin word for yellow, highlighting the distinct floral coloration that sets this variety apart from the common red flamboyant.

This mutation is highly prized by collectors of tropical trees.

Other interesting details include:

  • Canopy Shade: The broad canopy of a mature tree can create a microclimate beneath it, significantly reducing soil temperature.
  • Woody Pods as Instruments: The large dry seed pods are sometimes used as percussion shakers in local traditional music.

Geography of distribution

  • Madagascar

Sources

  • Plants of the World Online (POWO) - Kew Science
  • World Flora Online (WFO)
  • Tropicos Org - Missouri Botanical Garden
  • Global Biodiversity Information Facility (GBIF)

Technical Information

External Databases: GBIF, POWO, Tropicos

See also

True Araucarias

True Araucarias

Araucaria sect. Araucaria

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