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Koelreuteria elegans, photographed by an iNaturalist contributor
no rights reserved, uploaded by 葉子 · CC0
#201 most planted

Koelreuteria elegans

Flamegold rain tree · also Taiwanese golden rain tree, Flamegold, Chinese flame tree

Deciduous
8,803
trees mapped
0.09%
of all named trees
2
cities
9.5 in
median trunk (24 cm, 8,489 measured)

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Koelreuteria elegans is a deciduous tree known for its autumn blossoms of butter-yellow flowers and bladder-like fruits that mature to brown. Native to Fiji and Taiwan, it is widely planted as a street tree but can be invasive in some areas. It is considered the most frost-tender among its genus.

Where it grows

Trees in each city's inventory, with the share of that city's named trees this species accounts for.

  1. Taipei · Taiwan
    8,795—9.5 in
  2. Los Angeles · United States
    836 yr7.5 in

Traits

Foliage
Deciduous
Mature height
25–50 ft
Canopy spread
35–50 ft
Growth rate
Fast
Water needs
Moderate
Blooms
Jun, Jul, Aug, Sep, Oct, Nov

Trunk diameters across every city: median 9.5 in, mean 9.5 in, 90th percentile 14 in. Measured at breast height, as published by each inventory.

Native range

Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.

Tropical & Subtropical Moist Broadleaf Forests

  • South Taiwan monsoon rain forests
  • Taiwan subtropical evergreen forests
  • Fiji tropical moist forests

Tropical & Subtropical Dry Broadleaf Forests

  • Fiji tropical dry forests

Other Koelreuteria in the catalogue

4 of the top 2,000 species are in this genus.

Interested in talking trees? arborary.world@gmail.comTree data © the respective municipal publishers and © OpenStreetMap contributors (ODbL).