The correct answer is:
Option 2: Colchicum
Colchicine is a toxic compound used primarily in the treatment of gout and for inducing polyploidy in plants. It is extracted from the Colchicum plant, specifically from the species Colchicum autumnale (autumn crocus).
The other plants listed are not used for extracting colchicine:
Tulip (Option 1): Not a source of colchicine.
Aloe (Option 3): Known for its medicinal properties, especially for skin care, but not related to colchicine extraction.
Asparagus (Option 4): Primarily known for its culinary uses and not for colchicine extraction.
Thus, Colchicum is the correct plant used to extract colchicine.