This lifeform is found in Europe. This lifeform is found east of the Continental Divide in North America. The yellow color will help identify this lifeform.

Flower-of-an-hour (Hibiscus trionum) was originally native to southern Europe. It is now established in North America from Nova Scotia west to South Dakota, and south to Florida and Kansas. This annual has petioled leaves 3-7 divided. The lobes are again lobed or toothed. The flowers are yellow with a purple center. Each individual flower remains open for only a few hours.

Hibiscus genus (mallow) is native primarily to warm and tropical regions of planet earth.  However, one native North American species can be found as far north as New England.  There are about 220 herbs, shrubs, and, in the tropics, trees in this genus.  The leaves have petioles and the flowers are 5-lobed and the stamens are in a column.  There are 36 species, 0 hybrids, and 13 subspecies growing in greater North America.

Mallow Family (Malvaceae) is a large family of about 1,500 species arranged in about 115 different genera. These species are distributed widely and most commonly in the New World Tropics. These are mostly herbs or shrubs, but a few trees are included in tropical regions. The leaves are usually alternate with palmately-veined leaves. The large and showy flowers typically have five petals. There are 260 species arranged in 41 different genera growing in greater North America.

Malvales are a group of woody plants and herbs generally limited to the tropics. However, there are a few species in the United States.

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 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.

Plant kingdom contains a large variety of different organisms including mosses, ferns, and seed plants. Most plants manufacture their energy from sunlight and water. Identification of many species is difficult in that most individual plants have characteristics that have variables based on soil moisture, soil chemistry, and sunlight.

Because of the difficulty in learning and identifying different plant groups, specialists have emerged that study only a limited group of plants. These specialists revise the taxonomy and give us detailed descriptions and ranges of the various species.  Their results are published in technical journals and written with highly specialized words that apply to a specific group.

On the other hand, there are the nature publishers. These people and companies undertake the challenging task of trying to provide easy to use pictures and descriptions to identify those species.