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Clematis liguisticifolia, the native species, these are the staminate, male flowers, with their dominate stamen. The center of each flower, where the female stigma occur, are more ‘vestigial’ and aren’t ‘active’. Pollen must be carried from these to female, pistillate, flowers. From a distance these appear very similar to those of the invasive, Clematis vitalba still spreading across the Willamette Valley an onward into the Coast Range.

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