First record of Amaranthus crassipes subsp. warnockii in Tunisia
The genus Amaranthus is comprised of approximately 65-70 species of which half are native to the Americas. Amaranthus crassipes subsp. warnockii is an annual species, native to the Southern United States of America and to Mexico. It is reported for the first time in Tunisia and is the first report of the taxa outside of its native range. It is recorded in on clay and sandy substrates within ruderal vegetation. A. crassipes subsp. warnockii is restricted in Tunisia to one locality of Monastir city. The population covers an area of about 100 m2. In this location, it flowers from October to November and sets seed from November to December. The taxon can be considered as casual to Tunisia.
Sources
Iamonico D, El Mokni R (2022) First record of Amaranthus crassipes subsp. warnockii (I.M.Johnst.) N.Bayón (Amaranthaceae) outside of the Americas, with nomenclatural notes’. Bothalia 53(1), a2. https://www.abcjournal.org/index.php/BothaliaABC/article/view/350