Species Hierarchy
Kingdom PLANT (PLANTAE)
Phylum SEED PLANTS (EMBRYOPHYTA)
Class DICOTS (DICOTYLEDONEAE)
Order HEATH, PYROLA AND ALLIES (ERICALES)
Family HEATH (ERICACEAE)
Common name: MADRONE
Scentific name: ARBUTUS MENZIESII

FLOWER
Location: SEATTLE GARDEN, WASHINGTON, USA

Species Info:

This lifeform is found in the Pacific States and Provinces of North America. This lifeform is found in Mexico. The white color will help identify this lifeform. This lifeform is common in suitable environments.

Madrone (Arbutus menziesii) is found along the Pacific Coast of North America from Baja California north to British Columbia. Although not common in southern California, it is common from San Luis Obispo County north. This tree can grow to 90 feet tall. The smooth bark is reddish. The flowers are in large compound racemes. The fruit is a small berry with an orange to reddish color.

Arbutus genus (manzanita or manzaniia) is native to southern and western Europe and also Asia Minor.  This genus is also found in western North America and Central America.  There are 14 species in this genus.  These are large evergreen shrubs or trees with smooth flaking bark.  The flowers are in terminal panicles.  There are three species now growing in greater North America.

Heath Family (Ericacea) is a large family of perennial herbs, shrubs, and trees with over three thousand species with very wide distribution. There are 192 species placed into 33 genera in this family currently living in greater North America.

Ericales Order is usually divided into four 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.

 

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FLOWER

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DAVIDIA INVOLUCRATA
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ARCTOSTAPHYLOS GLAUCA
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ERICA ARBOREA
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