Tulips (Tulipa) are a genus of spring-blooming perennial herbaceous
bulbiferous geophytes (having bulbs as storage organs). The flowers are
usually large, showy and brightly colored, generally red, pink, yellow,
or white (usually in warm colors). They often have a different colored
blotch at the base of the tepals (petals and sepals, collectively),
internally. The tulip is a member of the lily family, Liliaceae, along
with 14 other genera, where it is most closely related to Amana,
Erythronium and Gagea in the tribe Lilieae. There are about 75 species,
and these are divided among four subgenera. Flowering in the spring,
they become dormant in the summer once the flowers and leaves die back,
emerging above ground as a shoot from the underground bulb in early
spring.
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