Spiny Sow-thistle Sonchus asper (Linnaeus) HillNon-native    Synonyms: Prickly sow-thistle.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Asterales   >   Family Asteraceae   >   Genus Sonchus   

[View seasonality details]
GA AL WA FR CL MO HO BA BC HACE PG AA CV CH SM KE QA CN TA DO WI SO WO 
Spiny Sow-thistle in bloom in Somerset Co., Maryland (10/20/2012). This is an introduced species from Europe. Photo by Jim Brighton. (MBP list)

Spiny Sow-thistle in Howard Co., Maryland (5/10/2010). Photo by Bill Harms. (MBP list)

Spiny Sow-thistle blooming in Howard Co., Maryland (5/21/2013). Photo by Joanne Solem. (MBP list)

Spiny Sow-thistle in Prince George's Co., Maryland (5/4/2017). Photo by Bill Harms. (MBP list)

Spiny Sow-thistle in Caroline Co., Maryland (9/23/2017). Photo by Wayne Longbottom. (MBP list)

Spiny Sow-thistle blooming in Washington Co., Maryland (6/19/2014). Photo by Kimberly Booth. (MBP list)

Spiny Sow-thistle in Anne Arundel Co., Maryland (5/8/2017). Photo by Wayne Longbottom. (MBP list)

Prickly Sow-thistle blooming in November in Ocean City, Maryland (11/10/2013). Photo by Bill Hubick. (MBP list)

Spiny Sow-thistle in Caroline Co., Maryland (5/7/2017). Photo by Wayne Longbottom. (MBP list)

Spiny Sow-thistle in Montgomery Co., Maryland (5/10/2020). Photo by Jane Hill. (MBP list)

Spiny Sow-thistle in Caroline Co., Maryland (9/29/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (MBP list)

Spiny Sow-thistle in Dorchester Co., Maryland (4/14/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (MBP list)


View All Images

Use of images featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

View Bibliography