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Rhus sp.
Sumacs are shrubs and small trees that can reach a height of 1–10 metres (3.3–33 ft). The leaves are spirally arranged; they are usually pinnately compound, though some species have trifoliate or simple leaves. The flowers are in dense panicles or spikes 5–30 centimetres (2.0–12 in) long, each flower very small, greenish, creamy white or red, with five petals. The fruits form dense clusters of reddish drupes called sumac bobs.
Small stand of sumac in a meadow with grasses and liatris.
A drupe only has one seed, like an olive. A berry is a fruit with multiple seeds like a tomato or a grape. Blackberries and raspberries are an aggregate of drupes.
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