In 2021, CPC contracted University of Minnesota Landscape Aroboretum to recollect seed from a population currently held in long term orthodox seed storage as part of an IMLS-funded seed longevity experiment. The National Laboratory for Genetic Resources Preservation will evaluate how germination tested viability and RNA Integrity of seed lots decline over time in storage.
Endemic to central and northwestern Wisconsin and restricted to the shorelines of inland lakes. Only 7 occurrences are known extant. The species' habitat is susceptible to a wide range of detrimental activities. The greatest immediate threat is probably changes to the lake hydrology. invasive species (spotted knapweed (Centaurea biebersteinii) and sweet clover (Melilotus?ssp.)), and to a lesser extent, all-terrain vehicle use of the shorelines.
Lakeshore recreational development
Shoreline development for houses
Vulnerable to disturbances of the local hydrological regime
Motor vehicle use
Herbicide and pesticide use in agricultural areas,
Due to the locow
At the time of listing, Oxytropis campestris var. chartacea was known from six sites containing less than 5,000
individual plants total, in Portage and Waushara Counties in central Wisconsin. (USFWS 1988)
All existing populations need tracking of:
pollinator visitation frequency
lakeshore (beach) traffic
lake water quality
aspects of the life history
seed germination requirements
duration of seed bank viability
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