Back to Top Causes. Toxic megacolon occurs as a complication of inflammatory bowel disease, such as ulcerative colitis and Crohnâs disease, and infections of the colon. The term toxic means that this complication occurs with infection or inflammation and is very dangerous.This is not the same as other forms of megacolon, such as pseudo-obstruction, acute colonic ileus, or congenital colonic dilation. These conditions occur without infection or inflammation.he term toxic means that this complication occurs with infection or inflammation and is very dangerous. This is not the same as other forms of megacolon, such as pseudo-obstruction, acute colonic ileus, or congenital colonic dilation. These conditions occur without infection or inflammation.
Leaf: The green, photosynthetic part of the plant is technically a megaphyll and in ferns, it is often referred to as a frond. New leaves typically expand by the unrolling of a tight spiral called a crozier or fiddlehead fern. This uncurling of the leaf is termed circinate vernation.
About Foxtail Ferns. Foxtail ferns are not really ferns, as theyâre multiplied from seeds and produce no spores. The common name likely came from the clumping habit of the plant that is similar to that of a fern. Foxtail asparagus ferns have an unusual, symmetrical look.bout Foxtail Ferns. Foxtail ferns are not really ferns, as theyâre multiplied from seeds and produce no spores. The common name likely came from the clumping habit of the plant that is similar to that of a fern. Foxtail asparagus ferns have an unusual, symmetrical look.