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Large-leaved Avens

Large-leaved avens (Geum macrophyllum) is a rare species in New York that prefers cool microclimates. It is sometimes confused with other yellow-flowered Geum spp. and can be distinguished by a lack of an epicalyx (no bracts between the sepals), broad lobes on the stem leaves, and the presence of stalked glands on the styles of the fruit. It gets its name from the large terminal lobe of the basal leaves, though this characteristic is only unique to the early leaves. Other species produce similar leaves after flowering.