Oxalis consist of leaflets , which are divisions of a compound leaf.
The number of leaflets are often 3 but can vary from 1 to 22.
Most leaflets close at night or when there is too much sun or wind.
The shape can be;
Heart shape , palmate , odd pinate or lanceolate arranged in a whorl/spiral pattern.
The leaflets can be;
Alternate, Cauline, Basal, often almost sessile, long petiolated or have stipules.
Caulescent species are oxalis that have above-ground stems. In this page you will find Summer growing and Winter growing oxalis.
Disse arter har stængler over jordens overflade