Pseudanthium

A Pseudanthium (Greek: false flower) is a special type of inflorescence, in which several flowers are grouped into a flower, a new, flower-like structures. The real flowers are usually small and greatly reduced. The base of a whorl of bracts forming a Pseudanthiums that have grown to a dish or cup-shaped form with each other and as a whole involucre (Latin: sheath ) are called. This Involucrum supports or encloses a number of flowers which spring from a more or less steep taper to the stem axis.

Pseudanthien are particularly widespread in the plant family Asteraceae. The central florets their Pseudanthien typically have no petals. Contrast, marginalized individual flowers have single, outward petals.

Cross section through a Pseudanthium of Bellis perennis with identifiable individual flowers

Pseudanthium the Dorstenia hildebrandtii with ray-like bracts

Pseudanthium the Asian Blossom Dogwood (Cornus kousa ) with four kronblattartigen bracts.

Pseudanthien occur in the following families.

  • Centrolepidaceae
  • Umbelliferae ( Apiaceae )
  • Lizard's tail plants ( Saururaceae )
  • (Asteraceae )
  • Bellflower Family ( Campanulaceae )
  • Dogwood ( Cornaceae )
  • Cake trees ( Cercidiphyllaceae )
  • Dipsacaceae ( Teasel )
  • Mulberry family ( Moraceae ), here called the Pseudanthium " Hypanthodium ".
  • Madder Family ( Rubiaceae )
  • Sedges ( Cyperaceae )
  • Silver tree family ( Proteaceae )
  • Grasses ( Poaceae )
  • Triuridaceae
  • Spurge family ( Euphorbiaceae ), the special Pseudanthium the spurge (Euphorbia ) is called cyathium.
  • Witch hazel plants ( Hamamelidaceae )
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