perianth

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Related to perianths: Sepals

perianth

the organs of a flower outside the sex organs, consisting of the CALYX and COROLLA; the floral envelope.
References in periodicals archive ?
These included small seed size, a protuberant-and-tapered base with a prominent abscission zone, and a persistent perianth (seed covering).
Calyx: Perianth five-parted: leaves oblong, acuminate-obtuse, concave.
Staminate inflorescences capitate, 10-12 flowered in a single raceme, peduncle to 10 mm long, pedicels up to 1 mm long; perianth campanulate, 6 mm long, 6-lobed, each lobe 1 mm long; stamens 6 alternate with perianth lobes, anthers bilocular, dorsifixed, elliptic < 1 mm diameter, extrorse, generally 1 or 2 reduced to staminodes; the fine filaments connate basally, borne at the base of a pistillode 3 mm long; lower part of the perianth reduced to 2 or 3 small involucral bracts; indumentum densely short velutinous.
2012) considered the presence of perianths to be an ancestral character among the Cyperoideae subfamily and they reported that perianths have been lost independently in multiple lineages, including Abildgaardieae and core Cypereae.
Porella Trigones large, knot-like; perianth mouth narrow, short-ciliate, the cilia of 1 to 3 thick-walled cells; underleaves rounded and recurved at apex; lobes and underleaves usually of similar size.
Perianths flattened or inflated, with 0-14 keels, the mouth contracted into a beak.
Its common name perfectly describes the pretty flowers where the cup or corona is enlarged and the perianth reduced to skinny little 'petals'.