apetalous


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Related to apetalous: apetalous flower

apetalous

[‚ā′ped·əl·əs]
(botany)
Lacking petals.
References in periodicals archive ?
They occur in Hamamelidae as a whorl alternating with antesepalous stamens, suggesting their homology with petals and as "a transitional stage between apetalous and petalous flowers" (Grepet & Nixon, 1996: 37).
Flowers are occasionally secondarily apetalous but may occasionally become secondarily petaliferous.
The most notable differences are found in the perfect flowers and uniseriate homocellular rays composed of procumbent cells in Asteropeia versus the apetalous flowers and uniseriate homocellular rays composed of mostly upright or square cells in Physena.