Panicle hydrangea (H. paniculata) is the most cold hardy member of the genus. It can be reliably grown in USDA cold-hardiness zones 4 to 7. Native to Asia, it grows 10 to 15 feet tall. Large creamy-white flowers, which are borne in 6- to 18-inch long panicles, are produced in mid-summer (see image at left).
Life cycle. Trichinella spiralis can live the majority of its adult life in the intestines of humans. To begin its life cycle, Trichinella spiralis adults will invade the intestinal wall of a pig, and produce larvae that invade the pig's muscles. The larval forms are encapsulated as a small cystic structure within a muscle cell of the infected host.
What is a Roundworm? Roundworms are found within the phylum Nematoda. They are a group of worms more advanced than flatworms, but less advanced than earthworms (roundworms are not segmented like earthworms). A number of parasites, including hookworms, pinworms, and Trichinella are classified as different types of roundworms.