Each flower grows alone on a long slender stem. At the top of the stem is a kind of green tube out of which the yellow blossom appears. The Primrose blossoms have a scent; not strong, but very sweet and pleasant.The leaves are called “radical” or “root” leaves. They are so called because each leaf appears to grow direct from the root. But the leaves really grow from a short stem at the top of the root – a stem so short that it does not appear above the ground at all.