Data mode


Sign up

Copy permalink to share

Aristida Linnaeus. Subfamily: Aristidoideae. Tribe: Aristideae. clade: "PACMAD". Three-awn Grass.

Key to Aristida

A genus of about 250-300 species, widespread in the tropics, subtropics, and warm temperate zones. Cerros-Tlatilpa, Columbus, & Barker (2011) discuss the phylogeny of the genus.

ID notes:The awns must be dry and relatively mature to assume their characteristic positions (immature awns and moist mature awns are erect and parallel). It is sometimes useful to dry a collection unpressed. Beware, however, that drying followed by dispersal can take place very quickly under the right conditions (such as the dashboard of a hot car!).

Ref: Allred (1984); Allred (1985); Allred (1986); Allred (2003d) In Flora of North America Editorial Committee (2003a); Cerros-Tlatilpa, Columbus, & Barker (2011); Henrard (1929); Kesler, Anderson, & Hermann (2003); Peet (1993); Ward (2001); Wilder & McCollum (2023). Show full citations.

Show in key(s)

Show parent family

Show species in Aristida

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.


See something wrong or missing on about Aristida? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.)

Cite as...