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Velvet antler is the whole cartilaginous antler in a precalcified growth stage of the Cervidae family including the species of deer such as elk, moose, and caribou. Velvet antler is covered in a hairy, velvet-like "skin" known as velvet and its tines are rounded, because the antler has not calcified or finished developing.
The state averages from 30–40 inches (76–102 centimetres) of precipitation annually. Snow cover tends to be intermittent in the southern part of the state, but persistent in northern Lower Michigan and especially in the Upper Peninsula. Michigan USDA Plant Hardiness Zone Map. The entire state averages 30 days of thunderstorm activity per year.
For example, Seattle, Washington, and the city of Austin, Texas, are both in the USDA hardiness zone 9a because the map is a measure of the coldest temperature a plant can handle.
USDA plant hardiness maps, updated for the first time in a decade, show a 2.5-degree Fahrenheit increase in temperatures across the contiguous U.S.
The hardiness scales do not take into account the reliability of snow cover in the colder zones. Snow acts as an insulator against extreme cold, protecting the root system of hibernating plants. If the snow cover is reliable, the actual temperature to which the roots are exposed will not be as low as the hardiness zone number would indicate.
One plant that will often sprout in these areas is garlic mustard, an edible plant that releases a chemical from its roots that can damage the fungi in the soil that plants and trees depend on to ...
Hydrologic map from NOAA site; river info page from the NOAA site; U.S. Geological Survey Geographic Names Information System: page from the USGS GNIS database for the river, giving coordinates and elevations; map page from the USGS National Map Viewer site. (with satellite imagery) Human impacts in the lower Grand, from the GVSU ISC site