Flower petal number

4

© Photographer/source
Lesquerella gracilis
JP80116_45

We use the term petal loosely, as a layperson would judge it. For example, a pea family flower that actually has five petals but appears to have two -- an upper and lower lip -- is scored as having two petals. the showy bracts on Euphorbia pubentissima are also regarded as petals, therefore it is scored as having 5 petals.