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. Look for American Pricklyash along cliffs, outcrops, glades over limestone and calcareous shale formations. The Frederick County population is considered extirpated (MD DNR, 2017).

Relationships:

Used by Giant Swallowtail as a host plant.

There are 14 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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