Tulips are perennial herbaceous bulbiferous geophytes that bloom in
spring and die back after flowering to an underground storage bulb.
Depending on the species, tulip plants can be between 10 and 70 cm (4
and 28 inches) high.
The tulip's fruit is a globose or ellipsoid capsule with a leathery
covering and an ellipsoid to globe shape. Each capsule contains numerous
flat, disc-shaped seeds in two rows per chamber. These light to dark
brown seeds have very thin seed coats and endosperm that do not normally
fill the entire seed.