Perianth

The term perianth has two similar but separate meanings in botany:

In flowering plants, the perianth is the outer, sterile whorls of a flower (see sepal, petal, and tepal). The flowering plants or angiosperms ( Angiospermae or Magnoliophyta) are the most widespread group A flower, also known as a bloom or Blossom, is the reproductive structure found in Flowering plants (plants of the division Magnoliophyta, also A sepal (from Latin separatus "separate" + petalum "petal" is a part of the flower of Angiosperms or flower plants A petal (from Ancient Greek petalon "leaf" "thin plate" regarded as a highly modified leaf is one member or part of the corolla Tepals are elements of the Perianth, or outer part of a flower which include the Petals or Sepals The term tepal is usually used when all segments
In a liverwort, perianth is the sterile tubelike tissue that surrounds the female reproductive structure (or developing sporophyte). The Marchantiophyta are a division of Bryophyte Plants commonly referred to as hepatics or liverworts. All land plants and some Algae, have life cycles in which a haploid Gametophyte generation alternates with a Diploid sporophyte, the generation of a

Dictionary

The sterile parts of a flower; collectively, the sepals and petals (or tepals).
The sterile, tubelike tissue that surrounds the female reproductive structure in a leafy liverwort.

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