perianth
Outer flower whorls
The perianth is the outer part of a flower surrounding the reproductive organs—collectively, the petals and sepals.
In flowers where petals and sepals look similar, like tulips and lilies, the individual parts are called tepals.
Botanists use perianth when discussing flower structure without distinguishing between the colorful petals and the protective sepals beneath them.
Outer whorl protecting buds
- petalsColored bloom segments
- calyxCollective sepals encircling petals
- corollaFlower's collective petals
- whorlSpiral arrangement of ridges
outer · inner · protective · enclosure · sheath · cover · layer · tube
Outer floral whorl segment
One-cotyledon flowering plant
- dicotTwo-cotyledon plant
- lilyTrumpet-shaped garden bloom
- tulipBulbous spring flower
- magnoliaLarge-flowered ornamental tree
orchid · grass · sedge · amaryllis · iris · primitive · derived · angiosperm
Excessively eye-catching
- colorfulFull of varied hues
- pigmentedHaving color added
- delicateEasily broken or harmed
- translucentPermitting diffused light passage
Guarding against harm
- displayPresentation for viewing
- rewardPayment for service
- insulationThermal transfer prevention
- reproductiveRelated to producing offspring
Not separated into types
- differentiatedMade unlike others
- symmetryInvariance under transformation
- bilateralInvolving two parties
- radialEmanating from center
whorled · spiral · imbricate · aestivation
sepals
Outer whorl protecting buds
- petalsColored bloom segments
- calyxCollective sepals encircling petals
- corollaFlower's collective petals
whorl · outer · inner · protective · enclosure · sheath · cover · layer · tube · limb
sepal
Outer floral whorl segment
monocot
One-cotyledon flowering plant
magnolia · orchid · grass · sedge · amaryllis · iris · primitive · derived · angiosperm
showy
Excessively eye-catching
translucent · veined · textured · fused · lobed · tubular · rotate
protection
Guarding against harm
- displayPresentation for viewing
- rewardPayment for service
- insulationThermal transfer prevention
undifferentiated
Not separated into types
- differentiatedMade unlike others
- symmetryInvariance under transformation
- bilateralInvolving two parties
radial · whorled · spiral · imbricate · aestivation