[Overview]
An annual to perennial.
The leaves are opposite, finely cut or toothed.
One to several flower heads are borne at the stem tips.
The ray florets are usually in a single row and come in yellow, white, bicolor, pink and other colors.
The disc florets are yellow.
The fruit is an achene with two spines, and is carried off by sticking to clothing and the like.
[Cultivation]
Propagate from seed, by division, or by stem cuttings.
It prefers sunny, well-drained soil.
For potted plants, water thoroughly when the soil surface dries; for plants in the ground, rainfall is sufficient.
If fertilizer is applied as a base fertilizer, no further feeding is particularly necessary.
Pests and diseases include aphids and spider mites.