Tetradymia tetrameres

Tetradymia tetrameres
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Tetradymia
Species:
T. tetrameres
Binomial name
Tetradymia tetrameres
(S.F.Blake) Strother

Tetradymia tetrameres is a species of flowering plant in the aster family known by the common name fourpart horsebrush[1] and dune horsebrush. It is native to the Great Basin, where it occurs in western Nevada and just over the border in Mono County, California. It is a plant of dry scrub and sand dunes. It is a bushy, woolly shrub with many erect, spineless branches. It is the largest of the horsebrushes, growing up to two meters in height.[2] The soft, woolly leaves are narrow and threadlike, growing up to 4 centimeters long. Shorter leaves occur in clusters around the primary leaves. The inflorescence bears 4 to 6 flower heads which are each enveloped in four or five woolly phyllaries. Each head contains up to four or five light yellow flowers each around a centimeter long. The fruit is a hairy achene which may be up to a centimeter long, including its pappus of long bristles.

  1. ^ USDA, NRCS (n.d.). "​Tetradymia tetrameres​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 9 December 2015.
  2. ^ Mozingo, H. N. (1987). Shrubs of the Great Basin: A Natural History. University of Nevada Press 317-8.