Narrative

Stock (Matthiola incana) originated in southern and western Europe. This is a biennial with a woody base. The flowers grow in spikes on this plant that can reach about 24 inches in height. There are a very large number of garden varieties based on M. incana and M. sinuata. The large number of annual cultivars has created multiple groupings of cultivars.

This lifeform is frequentlhy domesticated.

This lfieform is found in Europe. This non-native lifeform is now locally established in North America..

Matthiola genus is native to Europe, south western Asia, and northern Africa. There are about 55 species in this genus. These are annual or perennial herbs, and sometimes sub-shrubs. The flowers are usuaully in a terminal raceme, and can be fragrant at night. Two species are established in North America.

Mustard Family (Cruciferae) is a very large family of mostly herbs. There are about 2,500 to 3,000 species usually organized into about 400 different genera. The family is important for food including brussels sprouts, cabbage, cauliflower, raddishes, mustard, and turnips. The family contains several weeds that are particularly troublesome to farmers in the genera Brassica and Barbarea. Modern botanists would like to change the name of this family to the Brassicaceae family. There are about 700 species arranged into about 100 genera in greater North America.

Rhoeadales Order includes the Poppies, Mustards, and mostly other non-woody groups of plants.

Dicots (Dicotyledoneae Class) are the predominant group of vascular plants on earth. With the exception of the grasses (Monocots) and the Conifers (Gymnosperms), most of the larger plants that one encounters are Dicots. Dicots are characterized by having a seed with two outer shell coverings.

Some of the more primitive Dicots are the typical hardwood trees (oaks, birches, hickories, etc). The more advanced Dicots include many of the Composite (Aster) Family flowers like the Dandelion, Aster, Thistles, and Sunflowers. Although many Monocots reach a very high degree of specialization, most botanists feel that the Dicots represent the most advanced group of plants.

Seed plants (Phylum Embryophyta) are generally grouped into one large phylum containing three major classes: the Gymnosperms, the Monocots, and the Dicots. (Some scientists separate the Gymnosperms into a separate phylum and refer to the remaining plants as flowering plants or Angiospermae.)

For North American counts of the number of species in each genus and family, the primary reference has been John T. Kartesz, author of A Synonymized Checklist of the Vascular Flora of the United States, Canada, and Greenland (1994). The geographical scope of his lists include, as part of greater North America, Hawaii, Alaska, Greenland, Puerto Rico, and the Virgin Islands.

Kartesz lists 21,757 species of vascular plants comprising the ferns, gymnosperms and flowering plants as being found in greater North America (including Alaska, Hawaii, Greenland, Puerto Rico and the Virgin Islands.

There are estimates within the scientific world that about half of the listed North American seed plants were originally native with the balance being comprised of Eurasian and tropical plants that have become established.