Ivar Frederick Tidestrøm

Astragalus gilmanii is a species of milkvetch known by the common name Gilman's milkvetch. It is native to the desert scrub and woodland of Nevada, the California Sierra Nevada and Inyo Mountains, and it is known from a few locations in the Panamint Range adjacent to Death Valley in California.

Salicornia utahensis, synonym Sarcocornia utahensis, is a species of flowering plant in the amaranth family known by the common name Utah swampfire. It is native to the southwestern United States, where it can be found in desert habitat, generally in areas with alkaline or saline soils, such as playas. This halophytic perennial herb or subshrub grows in low matted clumps of woody stem bases anchored to the substrate by rhizome systems. The stem grows erect into fleshy green branches. The inflorescences are within the distal parts of the branches, which are ringed with tiny flat flowers.

Delphinium stachydeum is a species of larkspur known by the common name spiked larkspur. It is native to the Pacific Northwest and Great Basin of the United States, where it grows in sagebrush scrub and along the edges of mountain forest habitat where it meets prairie and plateau. It is a perennial herb producing at least one erect, slightly hairy stem generally exceeding a meter in height. The multilobed leaves are located mainly on the lower half of the stem except for the area just above ground level. The inflorescence is a branching array of usually more than 30 flowers, each held on a

Aquilegia scopulorum, also known as rock columbine or Utah columbine, is a species of plant in the buttercup family from Nevada and Utah in the western United States.

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Claytonia rubra is a species of wildflower in the springbeauty family known by the common names redstem springbeauty and red miner's lettuce. It is native to western North America from southwestern Canada to the United States of America extending from The Black Hills and western slopes of the Rocky Mountains to the Cascade and Coast Range, Ochoco and Wallowa Mountains south to the Warner Mountains, Yolla Bolly Mountains, and Sierra Nevada and Transverse Ranges [Mt. Pinos and Mt. San Gorgonio], where it is found in coniferous forests and shrublands.

Mentzelia springeri is a species of flowering plant in the family Loasaceae known by the common name Santa Fe blazingstar. It is endemic to New Mexico in the United States, where it occurs in the Jemez Mountains. This perennial herb forms a mound of branching stems, giving it a bushy look. The white stems are up to 30 to 50 centimeters tall. The leaves are linear to lance-shaped, the lowest ones measuring up to 4 centimeters in length. The leaves are covered in barbed hairs that will stick to cloth. The flowers are borne at the ends of the stems. Each has 10 bright yellow glossy petals just

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Packera malmstenii is a rare species of flowering plant in the aster family known by the common name Podunk ragwort. It is endemic to Utah in the United States, where there about 19 occurrences in the southwestern part of the state. This perennial herb is generally about 8 to 15 centimeters tall, growing from a branching rhizome. It produces one stem or a small cluster of stems and leaves with oval blades up to 2.5 centimeters long. There is one or more flower heads, each with 13 blue-green phyllaries about a centimeter in length. The head may contain ray florets, or these may be absent.

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