Species Hierarchy
Kingdom PLANT (PLANTAE)
Phylum SEED PLANTS (EMBRYOPHYTA)
Class DICOTS (DICOTYLEDONEAE)
Order GRAPE AND BUCKTHORN (RHAMNALES)
Family BUCKTHORN (RHAMNACEAE)
Common name: BUCKTHORN - GLOSSY
Scentific name: RHAMNUS FRANGULA

Location: VOLO, ILLINOIS, USA

Species Info:

This lifeform is found in northern Africa. This lifeform is found widely in Eurasia. This lifeform is found east of the Continental Divide in North America.

Glossy buckthorn or black dogwood (Rhamnus frangula to Frangula alnus) is a European species that has escaped into North America. This plant may be found in bogs. The twigs of this shrub lack thorns. This species was originally named by Linnaeus as Rhamnus frangula.

Buckthorns (genus Rhamnus) comprise about 150 species of typically thorny trees found primarily in the Northern Hemisphere, but species are also known from Africa and Brazil.  This genus contains several native species of the United States  and two very undesirable Eurasian species.  Kartesz lists nine species and seven subspecies in his greater North America, which includes the United States, Canada, Hawaii, Greenland, Puerto Rico and the U.S. Virgin Islands.  (This genus is very close to the Frangula genus, and several species have migrated around.)

Buckthorn Family (Rhamnaceae) is a medium-sized family of woody  plants including vines, trees, and shrubs. There are perhaps 850 to 900 species in the family. There are 109 species arranged in 17 genera now growing in greater North America.

Rhamnales Order is a small order of woody plants containing only two 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 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.

 

Search Region:
World
Species Range:
Click to enlarge
Click to enlarge
Photos
(Click on an image below to display at left)
 


Quick Jump:
Click to jump to
LILAC - CALIFORNIA
CEANOTHUS LEUCODERMIS
Backward 10 species
Click to jump to
BUCKTHORN - REDBERRY
RHAMNUS CROCEA PIRIFOLIA
Backward 1 species
Click to jump to
CASCARA
RHAMUS PURSHIANA
Forward 1 species
Click to jump to
MUSTANG GRAPE
VITIS MUSTANGENSIS
Forward 10 species