A native weedy plant, Eupatorium cappilifolium has the common name of dog fennel as supposedly the peculiar smell of crushed stems and leaves is attractive to dogs – although dogs, in my experience, are often attracted to rather unpleasant types of smells. In overgrazed pastures or poorly cared for fields, it can become the dominant weed – cattle won’t eat it and it limits crop yield. Occasionally, if I’m lucky, I’ll pass by a field where flattened somewhat twisted remnants of this plant are standing and I pull over and collect them. These stems have become fasciated – the growing point had some injury and started growing sidewise instead of straight – in this case probably the result of herbicide damage from attempts to control it. If you then color them with dark shoe polish, they become dramatic focal points in arrangements.
Dog fennell

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