| Botanical Name | Dioscorea spp. |
| Common Name | Yam |
| Family | Dioscoreaceae |
| Shape | Cylindrical or irregular tuberous root |
| Size | Length: 15–60 cm; Diameter: 5–15 cm |
| Weight (per tuber) | 1–5 kg (can be larger in some varieties) |
| Skin Color | Brown, dark brown, or blackish |
| Flesh Color | White, cream, yellow, or purple |
| Texture (Raw) | Firm and starchy |
| Texture (Cooked) | Soft, mealy, sometimes sticky |
| Surface | Rough and scaly with root hairs |
| Moisture Content | 60–80% |
| Starch Content | 20–30% |
| Fiber Content | Moderate |
| Taste (Cooked) | Mildly sweet or bland |