Senna spectabilis
Golden wonder tree · also American cassia, Popcorn tree, Cassia excelsa
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Senna spectabilis is a tree growing to 10m or more, typically with multiple trunks, known for its bright yellow flowers. Native to tropical South and Central America, it thrives in seasonally dry tropical climates and has become an invasive species in parts of Africa and South India due to its fast growth. Often grown as an ornamental, it needs pruning for a strong structure, tolerates moderate drought, and can be planted near decks or patios.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 270.01%—4.3 in
No city in this list records planting dates for this species, so age is blank throughout.
Traits
- Foliage
- Deciduous
- Mature height
- 15–20 ft
- Canopy spread
- 15–20 ft
- Growth rate
- Fast
- Water needs
- Low
- Drought tolerance
- Moderate
- Blooms
- Jun, Jul, Aug, Sep, Oct, Nov
Trunk diameters across every city: median 4.3 in, mean 6.5 in, 90th percentile 15 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 Dry Broadleaf Forests
- Cauca Valley dry forests
- Central American dry forests
- Magdalena Valley dry forests
- Southern Pacific dry forests
Other Senna in the catalogue
6 of the top 2,000 species are in this genus.
