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Tetradymia tetrameres
Also called Dune Horsebrush
Fourpart horsebrush is a bushy, woolly, spineless shrub of the daisy family, native to the Great Basin of western Nevada and nearby California, where it grows in dry scrub and sand dunes. It is the largest of the horsebrushes, reaching up to about 2 m, and is best suited to dry, sandy, well-drained sites.
Tetradymia tetrameres is a species of flowering plant in the aster family known by the common name fourpart horsebrush 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. 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.
Striped cottonthorn · Longspine horsebrush · Spineless horsebrush · Hairy horsebrush · Littleleaf horsebrush · Nuttall's horsebrush · Shortspine horsebrush · Mojave cottonthorn · Horsebrush
Text excerpted from the Wikipedia article Tetradymia tetrameres by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
