AP BIOLOGY

Detailed explanation-1: -Horsetail (Equisetum arvense) is an herbal remedy that dates back to ancient Roman and Greek times. It was used traditionally to stop bleeding, heal ulcers and wounds, and treat tuberculosis and kidney problems. The name Equisetum is derived from the Latin roots equus, meaning “horse, ” and seta, meaning “bristle."

Detailed explanation-2: -Horsetails thrive in warm, dank, oxygen-starved conditions. Cover with Bark Mulch While it appears to work temporarily, horsetails soon reappear stronger than ever.

Detailed explanation-3: -Horsetails have extensive underground horizontal stems (rhizomes) off of which emerge roots and vertical above ground stems. The commonly seen plant is a sporophyte that produces spores in a terminal cone or strobilis.

Detailed explanation-4: -The stems are usually green and photosynthetic, and are distinctive in being hollow, jointed and ridged (with sometimes 3 but usually 6–40 ridges). There may or may not be whorls of branches at the nodes. Unusually, the branches often emerge below the leaves in an internode, and grow from buds between their bases.