Edwin Blake Payson

Erigeron vagus is a high-elevation species of flowering plant in the family Asteraceae known by the common names rambling fleabane. Erigeron vagus is native to the peaks of the western United States where it lives on talus slopes, sometimes above the tree line but other times in open coniferous forests. It has been found in several locations isolated from each other, in eastern California (Sierra Nevada and White Mountains), southern Utah, southern Colorado, northeastern Nevada (Elko County), and northeastern Oregon (Wallowa Mountains). Erigeron vagus is a small perennial herb reaching a

Caulanthus californicus is a species of flowering plant in the family Brassicaceae known by the common names California jewelflower and St. Francis cabbage. It is endemic to California, where it has been known only from the San Joaquin Valley and the adjacent eastern slopes of the Central Coast Ranges, including the Carrizo Plain and Cuyama Valley. Its range is dramatically decreased from its historical distribution, and the plant is a federally listed endangered species.

Anelsonia is a monotypic genus in the family Brassicaceae containing the single species Anelsonia eurycarpa, which is known by the common name daggerpod. It is similar to Phoenicaulis cheiranthoides, but at present they are treated in separate genera. This species is a fleshy, hairy plant of mountain habitats throughout the western United States from California to Idaho and can be found from 1600 to 4100 m. Above the rosette of velvety, fingerlike leaves it bears densely packed inflorescences of tiny white flowers. The distinctive fruits develop and dwarf the rest of the plant under an array

Penstemon cyanocaulis, the bluestem penstemon or bluestem beardtongue, is a perennial plant in the plantain family (Plantaginaceae) found in the Colorado Plateau and Canyonlands region of the southwestern United States.

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Draba asterophora is a species of flowering plant in the family Brassicaceae known by the common names Lake Tahoe draba or Tahoe whitlow-grass. This rare plant is known only from the Mount Rose and Slide Mountain areas of the northern Carson Range in extreme western Nevada, in and just outside of the Lake Tahoe drainage basin. It is a squat perennial herb which forms small mats in rocky habitat in the alpine climate of the high mountains. It forms a basal patch of thick, hairy oval leaves up to 1.5 centimeters long. A small, erect inflorescence arises from the patch bearing several yellow

Caulanthus heterophyllus is a species of flowering plant in the family Brassicaceae known by the common names San Diego wild cabbage and San Diego jewelflower. This annual wildflower is native to the coast ranges of southern California and Baja California. It is a member of the chaparral plant community and is common in areas recovering from wildfire.

Caulanthus cooperi is a species of flowering plant in the family Brassicaceae known by the common name Cooper's wild cabbage. It is native to the southwestern United States and Baja California, where it is a common plant in a number of open, sandy habitats. This annual herb produces a slender, somewhat twisted stem with widely lance-shaped to oblong leaves clasping it. The flower has a rounded or urn-shaped coat of pinkish or pale greenish sepals enclosing light yellow or pale purple petals. The fruit is a straight or curving silique several centimeters long.

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Scoliaxon is a monotypic genus of flowering plants belonging to the family Brassicaceae. The only species is Scoliaxon mexicanus, which is native to is northeastern Mexico.

Scoliaxon is a monotypic genus of flowering plants belonging to the family Brassicaceae. The only species is Scoliaxon mexicanus, which is native to is northeastern Mexico.

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Draba pterosperma is an uncommon species of flowering plant in the family Brassicaceae known by the common name wingedseed draba. It is endemic to Siskiyou County, California, where it is known only from the Marble and Salmon Mountains of the Klamath Range. It is a small perennial herb forming dense mats or cushions of hairy, oval-shaped leaves each no more than a centimeter long. The erect inflorescence bears several white flowers that yield flat oval-shaped siliques containing winged seeds.

Draba cruciata is a species of flowering plant in the family Brassicaceae known as the Mineral King draba. This is an uncommon plant endemic to California, where it is known only from the Sierra Nevada in Tulare County. It was named for Mineral King, a historic valley in the area. This plant is a squat, mat-forming perennial adapted to high mountain climates. It has small paddle-shaped leaves covered in a thick coat of hairs. It bears an inflorescence of 5 to 20 yellow flowers, each flower about a centimeter across. The stem bears widely spaced fruits, which are siliques about a centimeter

Thelypodium crispum is a species of flowering plant in the mustard family known by the common name crisped thelypody. It is native to the mountains and plateaus of Nevada and eastern California, where it grows in areas with mineral-rich and alkaline soils, such as the margins of hot springs. Thelypodium crispum is an annual, biennial, or short-lived perennial herb producing an erect, branching stem to a maximum height anywhere between 10 centimeters and 1.2 meters. The thick, waxy basal leaves are usually divided into lobes, and leaves higher on the plant are usually simple and have bases

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Caulanthus simulans is a species of flowering plant in the family Brassicaceae known by the common names Payson's wild cabbage and Payson's jewelflower. It is endemic to southern California, where it is known mainly from open, dry habitat in the hills and deserts of Riverside and San Diego Counties. It is a bristly annual herb with deeply cut leaves, the longest arranged in cluster around the base of the stem. The flower is covered in thick, purple-tinted greenish sepals which split to reveal narrow, pale yellow petals at the tip. The fruit is a silique up to 8 centimeters (3.1 in) long.

Caulanthus major is a species of flowering plant in the family Brassicaceae known by the common name slender wild cabbage. It is native to the Great Basin and surrounding regions of the United States, where it grows on dry mountain slopes and similar habitat. It is a perennial herb growing an erect, hollow stem from a woody caudex. It is most similar to its relative, Caulanthus crassicaulis. Leaves appear in a basal rosette about the stem and along the body of the stem, and are smooth, toothed, or deeply cut along the edges. The largest leaves are lowest on the stem and may reach 9

Caulanthus hallii is a species of flowering plant in the family Brassicaceae known by the common name Hall's wild cabbage.

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Penstemon retrorsus, the adobe penstemon, is a rare species of penstemon only found along parts of Uncompahgre and Gunnison rivers in western Colorado. It grows on largely barren slopes of a shale deposit where not many plants are able to survive.

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Draba globosa is a species of flowering plant in the family Brassicaceae known by the common names beavertip draba, round-fruited draba, and rockcress draba. It is native to the western United States, where it occurs in Idaho, Montana, Utah, Wyoming, and possibly Colorado. This species is a small, clumpy perennial herb with stems just a few centimeters long. The leaf blades are under a centimeter long. The inflorescence is a raceme of up to 7 flowers with white or light-yellow petals. This species is similar to many other Draba and a hand lens or microscope is necessary to tell them apart.

Collomia larsenii is a species of flowering plant in the phlox family known by the common name talus collomia. It is native to the Olympic Mountains of Washington and the Cascade Range from Washington to northern California, where it grows in high exposed mountainside talus. It is a perennial herb forming a clump in the volcanic rocks. The branching stem is covered in fleshy, glandular, hairy leaves, each divided into many lobes. The inflorescence is a cluster of 6 to 9 tubular purple flowers, each with a face up to 1.5 centimeters wide.