Species Hierarchy
Kingdom PLANT (PLANTAE)
Phylum SEED PLANTS (EMBRYOPHYTA)
Class DICOTS (DICOTYLEDONEAE)
Order OLIVE AND GENTIAN AND ALLIES (CONTORTAE)
Family MILKWEED (ASCLEPIADACEAE)
SubFamily MILKWEEDS - MISC GROUPS (ASCLEPIADACEAE MISC TRIBES OF)
Common name:
Scentific name: CEROPEGIA DICHOTOMA

PLANT WITH FLOWERS

Species Info:

This lifeform is found in western Africa.

Ceropegia dichotoma is native to the Canary Islands. This species has linear leaves and yellow flowers.

Ceropegia genus is found from the Canary Isles east through tropical and south Africa and also in southeast Asia and Australia.  There are about 210 species in this genus.  Several species in this genus are popular succulent house plants.

Milkweed Family (Asclepiadaceae) contains about two thousand species of plants of worldwide distribution. Most of these plants have milk-like juices. Of particular interest are the Milkweeds (Asclepias) of North America which serve as food for the Monarch butterfly. Also of interest are the stem succulents of Africa.

There are about 150 species in greater North America organized into 15 different genera. The North American counts include several African species. For a detailed analysis of this family and the various tribes refer to the Illustrated Encyclopedia Cacti by Gordon Rowley.

Contortae Order is usually organized to contain the Olive, Gentian, Milkweed, and a few other families. Recently some authorities have removed certain genera from the Gentian Family and placed them in the Menyanthes Family.

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.

 

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PLANT WITH FLOWERS

 


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