[citation needed] The name is derived from the Ancient Greek words ἥλιος (helios, sun) and χρῡσός (chrysos, gold).

The plants may be annuals, herbaceous perennials or shrubs, growing to a height of 60–90 cm (24–35 inches).

The receptacle (base of the flower head) is often smooth, with a fringed margin, or honey-combed, and resemble daisies.

The taxonomy of this large polymorphic and probably polyphyletic genus is complex and not yet satisfactorily resolved.

When cut young and dried, the open flowers and stalks preserve their colour and shape for long periods.