English: A mature, but still tightly closed flower bud of Paeonia ludlowii, resembling in its globular shape and structure a red or white cabbage. A little difficult here to distinguish sepals from bracts : when the bowl-shaped bases of the sepals are hidden, as here, their long, abruptly-narrowed tips can resemble the slender, lanceolate bracts. Presumably the two green, bowl-shaped structures tightly enclosing (and parting to reveal…) the ball (tightly-furled corolla) of yellow petals are the uppermost of the sepals, distinctive in lacking the elongated tips of the lower ones. The rather palmate structure top right appears to be transitional between leaf and bract.
The heart of the matter here is, perhaps, that, in the flowers of the more primitive flowering plants (such as peonies), differences between floral structures/organs are not rigidly demarcated, one shading gradually into another through intermediate forms.
Bud borne by one of a pair of large, mature, cultivated specimens of this beautiful Tibetan tree peony, growing in a walled garden in Berrington in the far North of the county of Northumberland, U.K.
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