| Habit | Herb with seasonal dormancy | Evergreen herb |
| Rhizome / Stem | Rhizomes depressed-globose (1.2–1.8 × 1.8–2.2 cm) or elongate (1–5 cm long, 1–1.5 cm diam.) | Rhizome erect, up to 7 × 1–1.5 cm |
| Stolons | Up to 40 cm long, 3–4 mm diam. | Up to 45 cm long, ca. 3 mm diam. |
| Petiole | 23–63 cm long, sheath 5–15 cm long, greenish, glossy | 12–57 cm long, sheathing almost ¹ / 2 length, pale green to reddish brown sheath |
| Leaf blade | Broadly ovate to slightly circular, not glaucous, 15–35 × 11–25 cm, base cordate; adaxial side dull green, abaxial side pale green | Narrowly oblong-ovate cordate, 8–25 × 3.5–15 cm; adaxial side pale to mid-green, sometimes patterned; abaxial side slightly glaucous |
| Peduncle | 18–22 cm | 6.5–20 cm |
| Spathe | 7.3–7.8 cm | 6.5–16 cm long |
| Lower part of spathe | Elliptic or ovate, 1.8–2.2 × 1.0–1.2 cm, pale green | Ellipsoid-globose, 1.5–4 × ca. 1.3 cm, medium-green |
| Spathe limb | Broadly ovate, ca. 5.5 × 2.5 cm; abaxial side dull greenish yellow or white with a faint tinge of yellow; adaxial surface mainly yellowish green, becoming clearly dirty yellow to pale orange-yellow near the apex | Narrowly lanceolate, 5–12 × 1–3.5 cm, dirty yellow to pale orange-yellow |
| Spadix length | shorter than spathe | shorter than or equal to spathe |
| Pistillate flower zone | with 3–4 rows of white to ivory, globose to broadly ovate pistillodes at base | with 4–6 rows of whitish nail- to peg-like staminodes |
| Ovary | Broadly to very broadly ovate, 2.3–3.1 mm diam., speckled green | Subglobose, ca. 1.1 mm diam., green, sometimes speckled white |
| Stigma | Apex convex with depressed center | 3 - lobed |
| Sterile interstice | Cylindrical, 10–14 mm long, constricted in middle, both ends slightly expanded, sparsely hairy; lower part with weakly clavate to ovate staminodes; middle and upper parts with rhombohexagonal synandrodes | Tapering, 17–25 mm long, lower part with clavate staminodes, upper with rhombohexagonal synandrodes |
| Staminate flower zone | 18–23 × 6–8 mm, sparsely hairy | 11–14 mm × ca. 4 mm, hair absent |
| Synandria | 3.0–5.2 mm diam., white to ivory | Ca. 1 mm diam., white to pale orange |
| Appendix | 3.0–3.8 cm, 7–8 mm (~ ¹ / 3 spadix length), stipitate, ivory | 2.5–3.5 cm × 1–3 mm (¹ / 2–¹ / 3 spadix length), sessile or shortly stipitate, creamy yellow to purple |