Costus spectabilis
| Yellow trumpet | |
|---|---|
| Plate by Matilda Smith (1854–1926) Curtis’s Botanical Magazine | |
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Monocots | 
| Clade: | Commelinids | 
| Order: | Zingiberales | 
| Family: | Costaceae | 
| Genus: | Costus | 
| Species: | C. spectabilis | 
| Binomial name | |
| Costus spectabilis | |
| Synonyms | |
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Costus spectabilis, commonly known as the yellow trumpet, or yellow bell, is an African species of herb; low and perennial, it is found from Sierra Leone to Sudan to as far south as Angola and Zimbabwe.