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Terraria haydenii
Frisco Mountains mustard is a rare subshrub in the cabbage family, known only from two small populations in Utah's Wah Wah Mountains. It is not a garden plant and is rarely cultivated, so care advice relates to its wild dry, alkaline habitat.
Terraria haydenii, commonly known as Frisco Mountains mustard, is a species of flowering plant in the family Brassicaceae, and the sole species in genus Terraria. It is a subshrub endemic to Utah.
The species was discovered in 2012, and formally published in 2017. It is known only from two small populations in Wah Wah Mountains in the Great Basin. It grows in dry, highly alkaline soils. The populations are on land owned by the Bureau of Land Management, and are separated from each other by a road. The species is threatened with habitat loss from mineral extractions, recreational rock collecting for spider marble, and soil disturbance from livestock grazing.
Text excerpted from the Wikipedia article Terraria haydenii 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.
