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=== Vegetative === ; Leaves: These are basal, emerging from the bulb initially enclosed in a tubular membranous sheath of [[cataphylls]]. Generally, these are two (sometimes three) in number and linear, strap-shaped, or [[oblanceolate]]. [[Vernation]], the arrangement of the emerging leaves relative to each other, varies among species. These may be applanate (flat), supervolute (conduplicate), or explicative (pleated). In applanate vernation, the two leaf blades are pressed flat to each other within the bud and as they emerge; explicative leaves are also pressed flat against each other, but the edges of the leaves are folded back (externally recurved) or sometimes rolled; in supervolute plants, one leaf is tightly clasped around the other within the bud and generally remains at the point where the leaves emerge from the soil{{sfn|Bishop et al.|2001|loc=p. 1β2}} (for illustration, see Stearn{{sfn|Stearn vernation|1992}} and Davis{{sfn|Davis vernation|1999}}). In the past, this feature has been used to distinguish between species and to determine the parentage of hybrids, but now has been shown to be [[homoplasious]], and not useful in this regard. The [[Scape (botany)|scape]] (flowering stalk) is erect, leafless, [[terete]], or compressed.{{sfn|Brickell|2011}}
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