Neurogenic shock: A type of shock (a life-threatening medical condition in which there is insufficient blood flow throughout the body) that is caused by the sudden loss of signals from the sympathetic nervous system that maintain the normal muscle tone in blood vessel walls.
Smooth bromegrass forms rhizomes (underground stems that run parallel to the soil just below the soil surface) and thus spreads and forms a denser turf than many of the other grasses. The best identifying characteristic of this species is the W that is found imprinted at about the center of the leaf blade.
KNOW YOUR PLANTS â KNOW THE RULES MAKE THE RIGHT CHOICE ABOUT ELODEA Considerations: This plant is not native in Wisconsin, but is not a regulated invasive species. Characteristics: Leaves in whorls of 5, obvious serrated edges, smooth midrib (under leaf) Also known as: Elodea Canadian waterweed Common waterweed Anacharis canadensis Elodea brandegeae