The following Participating Institutions are custodians for this species in the CPC National Collection:
The Holden Arboretum
The conservation of Solidago houghtonii is fully sponsored.
Dawn M. Gerlica and Lindsey Parsons contributed to this Plant Profile.
Solidago houghtonii is often accepted as a distinctive species, but its origins continue to be clouded. It is usually a hexaploid and thought to be a naturally occurring hybrid, but the actual parents are the source of controversy. Potential parents could be S. ptarmicoides, S. ohioensis, and S. riddellii whose offspring then crossed back with another S. ohioensis. Adding to the confusion, the New York populations are slightly different and might add S. uliginosa to their parentage. (Morton 1979; Semple and Ringius 1983; Michigan Natural Features Inventory 1996)
Like many goldenrods, Houghton's is known for its small, bright yellow flowers at the top of an 8-20 inch stem. The flowers are arranged in a flat-topped cluster. The well-scattered leaves are smooth, narrow, 4-5 inches long, and slightly clasping at the base. The fine hairs on the branches of the flower cluster are also distinctive. Flowers appear most frequently in August. (Michigan Natural Features Inventory 1996)
Distribution & Occurrence
- New York
This species is restricted to the shores of the Great Lakes, primarily Lake Huron and Michigan. The plants are usually found on moist, neutral to alkaline sandy lakeshores, and in shallow depressions between low sand ridges. Unlike the sandy habitat, they can also be found on seasonally wet limestone pavement of alvars. They may be subjected to fluctuating water levels and can be submerged during high water years, but seedlings reestablish themselves on the moist sand when the low water years come again. (Michigan Natural Features Inventory 1996; Ostlie 1990)
|Michigan- This species occurs in about 60 sites within 9 counties of Michigan, although highest concentrations are in Mackinac, Emmet, Cheboygen, and Presque Isle. (Michigan Natural Features Inventory 1996)
New York- There is at least one site confirmed in Genesee county and there are unconfirmed reports from Orleans county. (Young 2001)
Ontario - Seven sites. (Ostlie 1990)
Conservation, Ecology & Research
Disruption of the naturally occurring fluctuating water levels prevents dune habitat from forming, and then plants do not re-establish themselves
Heavy foot a
Research is needed to determine the species actual origin and its level of genetic variability. (NatureServe Explorer 2001)
Antonio, T.M.; Masi, S. 2001. The Sunflower Family in the Upper Midwest. IN. Indiana Academy of Science. Indianapolis.