Colchicum, Linnaeus (1753: 341), Linnaeus, 1753

Vahdati, Fatemeh Bazdid & Faghir, Marzieh Beygom, 2024, Colchicum kivicum (Colchicaceae), a new species from Ardabil Province, north-western Iran, Phytotaxa 641 (1), pp. 22-30 : 28

Based on the diagnostic characters ( Table 1 ), the following key is presented:

1 Corm with ± horizontal stolons soboliferous, neck absent................................................................................................ C. minutum

- Corm erect, neck present ....................................................................................................................................................................2

2 Corm ovoid–subglobose, tepals obtuse–acute; white and purplish pink or pale rosy........................................................................3

- Corm oblong–ovoid, tepals subobtuse, obtuse–slightly acute; bright pink to pinkish purple or violet–purple .................................5

3 Tepals white, neck up to 10 mm long, filaments pale yellow to yellowish green, style curved ......................................... C. kivicum

- Tepals white to purplish pink or pale rose, neck 10–50 mm long, filaments white or cream, style straight......................................4

4 Leaf margin pilose, perianth segments narrowly elliptic–oblanceolate, capsule oval-elliptic.............................................. C. burttii

- Leaf margin glabrous or sometimes ciliate, perianth segments narrowly oblanceolate to narrowly oblong-lanceolate, capsule oval ........................................................................................................................................................................................... C. pasillum

5 Cataphyll apex uncinate, leave obtuse, tepals obtuse-slightly acute; elliptic-obovate...................................................... C. trigynum

- Cataphyll apex mucronate, leave subacute and subobtuse, tepals subobtuse–acute or obtuse and acuminate; narrowly oblong, oblanceolate........................................................................................................................................................................................6

6 Leaves oblong to elliptic–oblong, subacute–subobtuse, cataphyll white or cream, purplish red in upper part, style straight or slightly hooked at apex, seeds oval–elliptic ..................................................................................................................... C. kurdicum

- Leaves linear to linear–lanceolate, subobtuse and often cucullate, cataphyll light yellow or whitish yellow, style straight curved at apex, seeds elliptic-subglobose ....................................................................................................................................... C. wendelboi