Table 4.

Comparison of key characteristics of E. ecalcaratum, E. platypetalum, and E. campanulatum.

Species	E. ecalcaratum	E. platypetalum	E. campanulatum
Shape of petals	Obovate, apex subacute	Oblong, apex rounded	Obovate, apex rounded
Inner sepals	Purple-red, elliptic	Purple-red, ovate	Red-tinged, ovate
Number of flowers	7–14	2–6	15–43
Inflorescence	Raceme, 10–16 cm	Raceme, 7–12 cm	Panicle, 11–23 cm
Leaves	Ovate, 2.5–4 × 2–3 cm	Subrounded, ca. 4.5 × 4 cm	Ovate, 4.5–6 × 2.5–4 cm
Stem-leaves	Two alternate or opposite trifoliolate leaves	One trifoliolate leaves, sometimes two opposite trifoliolate leaves	Two alternate or opposite trifoliolate/5-foliolate leaves, sometimes three alternate trifoliolate leaves
Rhizome	Long creeping, 1–3 mm	Thin, short or long-creeping, 1–3 mm	Compact, 4–6 mm