Despite being listed as Vulnerable in PEI (S3 ACCDC ranking), Fireberry Hawthorn (C. chrysocarpa) is the second most observed Hawthorn species in the province, second only to the non-native (but naturalized) Common Hawthorn. Fireberry Hawthorn very closely resembles our native Fleshy Hawthorn (C. succulenta), but can be distinguished from it in the following ways: Fireberry Hawthorn leaves have deeper lobes, which generally resemble deeply toothed serrations; the flowers have 10 or fewer stamens; the thorns are shorter than Fleshy Hawthorn, ranging from 1.5 to 3 inches long; there are no compound thorns; the leaf petioles have small red glands along the edges; and the overall growth habit is that of a shrub with multiple upright stems.
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