bract

(redirected from Bractless)
Also found in: Dictionary, Thesaurus, Encyclopedia.

bract

a specialized leaf with a single flower or inflorescence growing in the axil. See also SPADIX.
References in periodicals archive ?
At present I can only speculate on why styles from bractless shrubs have fewer tubes than controls in spite of equivalent stigmatic pollen loads.
Furthermore, pollinators probed the same number of heads on control and bractless half-shrubs, and this made changes in per-flower visitation rates unlikely (a precondition for increased pollen export; Stanton et al.
Within-shrub differences among bractless and control half-plants regarding the vigor of the progeny were significant (and in the expected direction if bracts increased seed quality; question 5) only in two out of five cases.