Do primroses have thorns?

No, a primrose is a small wild yellow flower...found mostly in woodland in uk.

Do primroses have thorns?
Absolutely no. There are many types of primrose but none that I know have thorns. My absolute favorite primrose is called the Missouri Primrose. It only blooms at night and the blooms wilt by morning. They are glorious from dark to dawn. They are a beautiful yellow flower and attract the night moths which are sometimes called "nightime hummingbirds" but are really sphinx moths. I also have evening primrose which grows to about 8 feet but attracts the Japanese beetles away from my garden vegetables.