Some similarities to : Creeping Jenny (to which it is related) but yellow pimpernel has petals that are (when not closed in cloudy weather) more pointed, have more space between petals, and are not cup-shaped. It also has styles that stick out much more prominently upwards from the flowers. Also, Creeping Jenny has square stems whereas they are round in Yellow Pimpernel.

Obvious resemblance to : Scarlet Pimpernel, (to which it is related) except that the flowers are yellow and not scarlet red.

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