Common Pricklyash Zanthoxylum americanum MillerEndangered (MD)  -  S1S2 (Highly state rare)    Synonyms: Northern Prickly-ash.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Sapindales   >   Family Rutaceae   >   Genus Zanthoxylum   

Status:

American Pricklyash is an endangered species in Maryland with less than ten known populations in the state. It is endangered because of habitat loss. Invasive species have a heavy impact on American Pricklyash causing the species to be displaced in many of its former strongholds. The Frederick County population is considered extirpated (MD DNR, 2017).

Where to find:

Look for American Pricklyash along cliffs, outcrops, glades over limestone and calcareous shale formations.

Relationships:

Used by Giant Swallowtail as a host plant.

There are 16 records in the project database.

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Budding Common Pricklyash in Walworth Co., Wisconsin (5/2011). Common Pricklyash is endangered in Maryland and is considered highly state rare. Photo by Corey Raimond. (MBP list)

Common Pricklyash leaves and fruit in Campbellsport, Wisconsin (9/2/2007). Photo by Cory Gregory. (MBP list)

Common Pricklyash fruit in Northern Kettle Moraine State Forest, Wisconsin (8/28/2011). Photo by Corey Raimond. (MBP list)

Common Pricklyash growing in Montgomery Co., Maryland (6/19/2016). Photo by Ashley Bradford. (MBP list)

Common Pricklyash in Howard Co., Maryland (7/25/2017). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

Common Pricklyash in Howard Co., Maryland (7/25/2017). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

Common Pricklyash in Howard Co., Maryland (5/18/2018). Image processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)


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