Senecio nigrescens
Encyclopedia
Senecio nigrescens is a species
of the genus Senecio
and family Asteraceae
and was first written about in the botanical classic Botany of Beechey's Voyage to the Pacific and Behring's Straits.
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
of the genus Senecio
Senecio
Senecio is a genus of the daisy family that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters...
and family Asteraceae
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
and was first written about in the botanical classic Botany of Beechey's Voyage to the Pacific and Behring's Straits.