PROTECTING WISCONSIN'S BIODIVERSITY

 
 
   
 
Scientific Name Common Name Global Rank State Rank Federal Status WI Status

Forked Aster (Eurybia furcata)

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Photo by Ryan O'Connor

 

Counties with Mapped NHI Occurrences

Forked Aster (Eurybia furcata), a Wisconsin Threatened plant, is found in dry-mesic to mesic hardwoods, often adjacent to lakes or streams, or on slopes with dolomite near the surface. Blooming occurs early-August through early-October, fruiting late-August through early-October. The optimal identification period for this species is late-August through late-September.

Aster furcatus

 
 
 

Forked aster is an erect forb, 30-80cm tall, with white flowers that become lilac or rosy colored as they age. Flower heads are flat or round-topped, petals are 8-15mm long. Fruit are brown cypselae, 3-3.5mm, with faces that usually have minute, stiff, sharply appressed hairs. The upper leaves are more or less sessile, thick and firm, oval to lance-shaped, 6-15cm x 3-8cm, with serrated edges. They are rough on the upper side and densely hairy below. The lower leaves have heart-shaped bases with long petioles and prominent veins.

Rhizomatous. Blooming occurs early-August through early-October, fruiting late-August through mid-October.

Perennial. The optimal identification period for this species is late-August through September.

Associated species include Quercus rubra, Q alba, Populus tremuloides, Acer negundo, Tilia americana, Fraxinus pennsylvanica, Jeffersonia dyphylla, Aster lateriflorus, and Solidago flexicaulis.

Forked aster prefers moist, calcareous soils and is found in mesic to wet-mesic forests, often adjacent to lakes or streams, or on slopes with dolomite near the surface.

Avoid known individual plant locations and conduct operations elsewhere when they are least likely to cause damage. Ideally, this would involve frozen, snow-covered ground. However, in areas of the state where frozen conditions are unreliable, very dry soils late in the growing season might be the best available alternative. Consult with a biologist, if needed.

Avoid broadcast spraying of herbicides and use care with spot spraying.

Avoid direct disturbance to sensitive microsites such as seeps, cliffs, and moss-covered boulders.

Avoid (moist or dry) cliffs, rocky areas, slopes, outcrops, ridges, or ledges within forests.

Follow BMPs, especially around streams and use care near ravines, steep slopes, cliffs, rock outcrops, etc.

Minimize disturbance to hydrology, including soil disturbance from rutting.

Although maintaining high overall forest canopy is important, silvicultural techniques that open small gaps in the canopy may be beneficial to this species. Seedlings and saplings of some species in openings may need to be protected from deer browse.

Species of Greatest Conservation Need (SGCN) are associated with habitats (or natural communities) and places on the landscape. Understanding relationships among SGCN, natural communities and ecological landscapes help us make decisions about issues affecting SGCN and their habitat and how to respond. Download the Wildlife Action Plan association score spreadsheet to explore rare species, natural communities and ecological landscape associations

Conservation actions respond to issues or threats, which adversely affect species of greatest conservation need (SGCN) or their habitats. Besides actions such as restoring wetlands or planting resilient tree species in northern communities, research, surveys and monitoring are also among conservation actions described in the Wisconsin Wildlife Action Plan because lack of information can threaten our ability to successfully preserve and care for natural resources.