What Is the Native Range for a Crabapple Tree?

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"Only four species of apple, all of them crabapples, are native to North America," Nancy Coverstone of University of Maine’s Cooperative Extension says. Of the four, two are native to Canada. Malus fusca and Malus coronaria both ranged through British Columbia and Malus coronaria grew in Ontario.

Names of Native Crabapples

  • The four native crabapples are now listed as "malus."

    One, Malus coronaria, also known as Pyrus coronaria, is commonly known as American crabapple or sweet crabapple.

    The southern crabapple is properly called Malus angustifolia.

    Malus ioensis is known as the prairie or Iowa crabapple, and Malus fusca—the Oregon crabapple or Pacific crabapple—was formerly Malus diversifolia.

Original Range of Native Crabapples

  • Each native crabapple occupied a home range and native habitat niche.

    Malus angustifolia originally grew from Florida to Southeast Texas, in Arkansas, Kentucky and Illinois. It did have one anomaly in its range, since it was also found in the more northern state of New Jersey although primarily a southeastern and southern Midwest crabapple.

    Malus coronaria’s original range spread across central New York through southern Wisconsin and down through Delaware to a belt stretching across northern North Carolina to northeastern Arkansas. You could also find it in Georgia.

    Malus fusca occupied a range from southern Alaska south through the Pacific northwest of Washington and Oregon and about 1,000 miles into northern California along the Pacific Coast.

    Malus ioensis’s original range was a belt from Minnesota and Wisconsin south to Oklahoma down through Louisiana. It was also found in Kentucky.

Current Wild Range

  • The ranges of native crabapples have extended and now overlap. The exception is the Pacific crababble, Malus fusca, which is still restricted to its original range along the Pacific Coast from Alaska and Canada through northern California.

    Malus angustifolia now grows from Florida through Pennsylvania and into the eastern Midwest. It did have one anomaly in its range, since it was found in New Jersey

    Malus coronaria occupies nearly the same range as Malus Angustifolia, with one exception; it is not found in Florida. It also grows in the northern states of Wyoming, Wisconsin, Michigan and New York and is still found in two Canadian provinces.

    Malus ioensis occupies a belt from the northern Midwest to Texas and Louisiana. It also grows in Wyoming.

Why Have Ranges Changed?

  • Native crabapple seeds are spread by animal and human means. Animal and bird territories can cover several miles and animals or birds spread the seeds when they defecate after eating. Deliberate plantings made by homesteaders, wildlife managers and horticulturists who noticed the adaptability of native crabapples have increased original ranges. Native Americans gathered crabapples and nomadic tribes may have spread seeds as they traveled.

New Varieties, New Ranges

  • Man always tries to improve on native species. One of the drawbacks of native crabapples is their susceptibility to common apple diseases. New cultivars are being developed to improve wildlife habitat. Since they are disease resistant and withstand more temperature extremes they can be planted in more climate zones and will expand the range of native crabapples.

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References

  • Photo Credit crabapples image by catbird338 from Fotolia.com White flowers on trees image by Katya Mikhlin from Fotolia.com world map on grunge background image by NataV from Fotolia.com map of north and central america green image by patrimonio designs from Fotolia.com crab apples image by samantha grandy from Fotolia.com crab apple image by samantha grandy from Fotolia.com
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