PROTECTING WISCONSIN'S BIODIVERSITY

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

Rock Stitchwort (Minuartia dawsonensis)

MINU_DAWS_Anderson_001.jpg

 

 

 

 

8741.jpg

Photo by Derek Anderson

 

Counties with Mapped NHI Occurrences

Rock Stitchwort (Minuartia dawsonensis), a Wisconsin Special Concern plant, is found on dolomite and sandstone ledges and dry prairies. Blooming occurs early-June through early-July, fruiting early-July through early-September. The optimal identification period for this species is early-July through early-September.

Arenaria dawsonensis, Arenaria litorea, Arenaria stricta ssp. dawsonensis, Arenaria stricta var. dawsonensis, Arenaria stricta var. litorea, Sabulina dawsonensis

 
 
 

Rock stitchwort is an erect forb, 10-40cm tall, with an open inflorescence, often extending to the middle of the stem with slender pedicels, 5-20mm, broadly lanceolate, acute sepals 3.5-6.5mm, and entire white petals 5-8mm long. Its fruits are equal to or a little longer than the sepals, all three valves split to the middle or beyond, its seeds are black-brown and 0.8-1.5mm. Leaves are opposite. Primary leaves are 8-30mm long, and 3-nerved. It commonly has short, sterile shoots on its prostrate branches. Its stems are erect or reclining along the ground with ascending tips, leafy for 1/3-2/3 of their length, and usually with short, leafy, sterile axillary shoots.

It is distinguished by its primary leaves with secondary leaves fascicled in their axils.

Blooming occurs early-June through early-July, fruiting early-July through early-September.

Perennial. The optimal identification period for this species is early-July through early-September.

Associated species include Juniperus virginiana, Betula papyrifera, Solidago hispida, Selaginella ruspestris, Pellaea glabella, Arabis lyrata, Aquilegia canadensis, Carex eburnea, Artemisia campestris, Andropogon scoparius, and Bouteloua curtipendula.

Rock stitchwort prefers rocky or gravelly, often calcareous soils and is found on dolomite and sandstone ledges and dry prairies.

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 locating landings, staging areas, or access routes in open sandy areas dominated by native grasses.

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

Buffer management around unique microhabitats such as ephemeral ponds, seeps, etc.

Prescribed burns and/or brushing may be beneficial, dependent on local site conditions and burn frequency. Rotational burns with annual unburned refugia may be preferred.

Maintain and restore open habitat through selective clearing and brushing.

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.