Species Hierarchy
Kingdom PLANT (PLANTAE)
Phylum SEED PLANTS (EMBRYOPHYTA)
Class DICOTS (DICOTYLEDONEAE)
Order MAPLE AND HOLLY AND ALLIES (SAPINDALES)
Family CASHEW (ANACARDIACEAE)
Common name: SKUNKBUSH - 3 LOBED
Scentific name: RHUS TRILOBATA

LEAVES AND FRUIT
Location: LBJ GRASSLAND, TEXAS, USA, 2005

Species Info:

This lifeform is generally found west of the Continental Divide in North America This lifeform is found in Mexico. This lifeform is common in suitable environments.

Skunkbush (Rhus trilobata) is found from Saskatchewan west to Washington and south to Arizona, western Texas and Mexico. The flowers are yellow. The fruits are red.

Sumacs (genus Rhus)  comprise about 200 species found in North America, South Africa, Asia, and Australia.  These species generally have odd pinnately compound leaves.  They are frequently shrubs or bushes,  and occasionally become small trees.  There are 13 species, two hybrids, and fourteen subspecies listed in the Kartesz list of greater North America, including the United States, Canada, Hawaii, Greenland, Puerto Rico and the U.S. Virgin Islands.  Although some scientists place poison ivy and poison sumac in this genus, most authors now separate those species into the genus Toxicodendron.  The Toxicodendron genus has an additional five species native to greater North America.

Cashew or Sumac Family (Anacardiaceae) contains about 800-900 species usually organized into seventy different genera. Included in this family are several poisonous plants like Poison Oak and Poison Sumac. Raw cashews are reportedly poisonous. There are 37 species arranged in 12 genera growing in greater North America.

Sapindales Order is a diverse group of mostly trees and shrubs.

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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