Narrative

Silene coeli-rosa (= Lychnis coeli-rosa) is native to the Mediterranean area. It is an occasional weed in Europe and North America. The flowers are pink-purple with a white center.

This lifeform is frequentlhy domesticated.

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

Silene genus of about 500 species is found worldwide in the Northern Hemisphere. This genus is also found in South Africa and South America. These annual or perennial herbs have mainly pink, red, or white flowers. The calyx is more or less inflated and the flowers are typically 5-toothed or 5-petaled. There are 76 species and 69 subspecies found in greater North America. The boundaries between the Silene, Lychnis, and Saponaria genera have been changed frequently.

Pink Family (Caryophyllaceae) contains over 2,000 species, is usually organized into eighty to ninety different genera, and is well-represented in the northern temperate regions. These are annual or perennial herbs usually with opposite entire leaves. There are several well-known weeds in this family. There are 40 genera and 346 species growing in greater North America.

Centrosperm (Centrospermae) order is a large order composed of several families.

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.