Quick answer: Mexican buckeye (Ungnadia speciosa) is native to 2 states. What's commonly sold under this name is the true wild species. It's typically seeds, verified 15 Sep 2026.
Where it's native
Listed in the register as native to these states. Click a state for its full native-plant guide.
Growing conditions
From the Lady Bird Johnson Wildflower Center Native Plant Database.
| Sun | Full sun to part shade |
|---|---|
| Water | Low |
| Soil | Rocky, tolerates sandy loam/clay loam/limestone-based |
| Bloom | Mar-Jun |
| Height | 8-12 ft (to 30 ft) |
| Wildlife value | Nectar for bees/butterflies/moths; larval host for Henry's Elfin; birds/mammals eat seeds |
Toxicity
Seeds poisonous; mildly poisonous seedpods -- livestock typically avoid the toxic foliage
Buying it
Wild species
Sold true to the wild species as of the last check (15 Sep 2026), via Amazon.
Sold as: Seeds via Amazon · listing verified 15 Sep 2026
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