Amaranthus watsonii

Taxobox
name = "Amaranthus watsonii"


image_width = 240px
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Caryophyllales
familia = Amaranthaceae
genus = "Amaranthus"
species = "A. watsonii"
binomial = "Amaranthus watsonii"
binomial_authority = Standl.

"Amaranthus watsonii" is a species of amaranth known by the common name Watson's amaranth. It is native to the southwestern United States and northern Mexico, where it grows in sandy places such as deserts and beaches, and disturbed areas. It is also known as a rare introduced species in parts of Europe. This is an erect annual herb producing a glandular hairy stem to a maximum height of about a meter. The leaves are generally oval-shaped and up to 8 centimeters long, with a petiole of up to 9 centimeters. The species is dioecious, with male and female individuals producing different types of flowers. The inflorescence is a long spike cluster of flowers interspersed with spiny green glandular bracts. The fruit is a smooth capsule about 2 millimeters long that snaps in half to reveal a small shiny reddish black seed.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?290,294,309 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=AMWA USDA Plants Profile]
* [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242415654 Flora of North America]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Amaranthus+watsonii Photo gallery]