Amaranthus Species, Needle Burr, Spiny Amaranth, Thorny Pigweed (Amaranthus spinosus)

author--Forest & Kim Starr, with Laysan albatross at Medical clinic Sand Island, Midway Atoll, Hawaii (Attribution 3.0 United States (CC BY 3.0 US)

by DaylilySLP Mar 29, 2020 8:27 AM

Close up of Amaranthus spinosus. Late Sept, west KY

by melody Sep 26, 2005 12:14 PM

Amaranthus spinosus is a common barnyard weed here in west KY

by melody Sep 28, 2005 11:04 PM

this was removed from a field and brought home to get a pict for the PDB

by Michaelp Jul 2, 2004 9:16 AM

I am trying to get a clear picture of the thorns--

by Michaelp Jul 2, 2004 9:16 AM

On the disturbed edge of a road construction site in Oldsmar, FL - Late September 2005

by Floridian Sep 27, 2005 11:05 PM

Growing in dry creekbed, central Ohio. August 2007.

by Lamiaceae Aug 26, 2007 4:23 AM

Close-up of stem, showing paired nodal spines.

by Lamiaceae Aug 26, 2007 4:24 AM

Amaranthus spinosus thorns, mid-august, west KY, USA

by melody Aug 24, 2016 12:40 PM

author--Aris riyanto (Creative Commons Attribution-Share Alike 4.0 International license)

by DaylilySLP Mar 29, 2020 7:58 AM

author--Dinesh Valke, India (CC Attribution-Share Alike 2.0 Generic license)

by DaylilySLP Mar 29, 2020 8:08 AM

author--Dinesh Valke, India (CC Attribution-Share Alike 2.0 Generic license)

by DaylilySLP Mar 29, 2020 8:09 AM

author--Dinesh Valke, India (CC Attribution-Share Alike 2.0 Generic license)

by DaylilySLP Mar 29, 2020 8:11 AM

Wellcome Images, Attribution 4.0 International (CC BY 4.0)

by DaylilySLP Mar 29, 2020 8:14 AM