Viburnum opulus at the Skaneateles Conservation Area

Dipsacales: Adoxaceae: Viburnum opulus. Cranberry-bush viburnum (also called guelder-rose or highbush cranberry) is quite plentiful on the Federal Farm section of the conservation area. It often grows along with the even-more plentiful exotic bush honeysuckle (Lonicera spp.) and when only the stems are observed they can be easily mistaken for honeysuckle. Although there are native cranberry-bush viburnums (Viburnum trilobum = Viburnum opulus var. americanum = Viburnum opulus ssp. trilobum), ours all appear to be V. opulus var. opulus, the European variety. We have not discovered any with petiole glands that are consistently stalked and convex, which would indicate the native variety.

• Field south of transfer station at the Federal Farm, 10 June 2011.
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• Field south of transfer station at the Federal Farm, 24 Jul. 2011.
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• Field south of transfer station at the Federal Farm, 2 Sep. 2011.
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• Field south of transfer station at the Federal Farm, 1 Jan. 2012.
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• Cranberry-bush viburnum, Federal Farm, 2012.
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  30 Apr.
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  12 May
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  12 May
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  12 May
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  14 May
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  7 Jun.
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  2 Jul.
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  2 Jul.
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  3 Aug.

• Federal Farm, 2015.
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  25 May
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  11 Sep.
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  19 Oct.
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  19 Oct.