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Swamp rose flowers arise from the upper stems as single flowers or corymbs of 2-4 flowers. The flowers are 1.5-3" across, with five green, lance-shaped sepals, five pale- or rosy-pink, oval or heart-shaped petals, a ring of about two hundred yellow stamens, and a flat central disc of 24-50 styles that is pink or orange-red (much less often, yellow). The sepals and pedicels are covered with glandular hairs. The fruits are typical rose hips but are quite small (3/8" across, pea-sized), bright red when ripe.

Rosa

Rosa palustris

swamp rose [Blooms: May-Jun]