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Phacelia argillacea
Also called Clay Phacelia
Phacelia argillacea is a rare species of flowering plant known by the common names clay phacelia and Atwood's phacelia. It is endemic to Utah in the United States, where it is known only from one canyon in Utah County. It is "one of Utah's most endangered species"; it is "one of the nation's rarest plants" and is federally listed as an endangered species of the United States.
This plant is an annual herb growing up to 36 to 40 centimeters in height. It has a rosette of leaves around the base of the stem. The leaf blades are oblong with deep lobes along the edges, and measure up to 5 centimeters in length. The inflorescence is a cyme with several branches that are scorpioid in shape, curving into a curl like the tail of a scorpion; this inflorescence is hairy and glandular.
Glandular yellow phacelia · Limestone phacelia · Aven Nelson's phacelia · Sanddune phacelia · Southern Sierra phacelia · Fernleaf phacelia · Bolander's phacelia · Shortlobe phacelia · Brewer's phacelia · California phacelia · Calthaleaf phacelia · Desertbells
Text excerpted from the Wikipedia article Phacelia argillacea by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
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.
