Morton Eaton Peck

Sedum oregonense is a species of flowering plant in the family Crassulaceae known by the common name cream stonecrop. It is native to the Klamath Ranges of southern Oregon and northern California, where it grows in rocky habitat. It is a succulent plant forming basal rosettes of leaves up to about 4 centimeters long. Smaller leaves occur higher up the stem. The leaves are green in color and waxy in texture. The inflorescence is an upright, wide open array of flowers. The flowers have yellow petals with red-tinged or white-speckled undersides.

Astragalus tyghensis is a species of flowering plant in the legume family known by the common name Tygh Valley milkvetch. It is endemic to Oregon in the United States, where it is known only from the Tygh Valley of Wasco County. This species is a perennial herb growing from a stout taproot and a branching caudex. The plant forms mats or clumps, with stems growing prostrate or upright and up to 55 centimeters long. Most of the plant is covered in long, silky hairs. The leaves are divided into a number of leaflets each up to 1.7 centimeters long. The inflorescence is a raceme of up to 40

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Mentzelia mollis is a species of flowering plant in the Loasaceae known by the common names soft blazingstar, smooth blazingstar, and smooth stickleaf. It is native to the western United States, where it occurs in Idaho, Oregon, and Nevada.

Astragalus applegatei is a rare species of milkvetch known by the common name Applegate's milkvetch. Its scientific name is also spelt Astragalus applegatii. It is endemic to Klamath County, Oregon, where it is known from three populations, one of which is made up of only three plants. Much of the remaining habitat is seriously threatened by development, introduced plant species, and other forces. This is a federally listed endangered species of the United States. The plant is a perennial herb with clustered or spreading prostrate stems growing from a taproot. It may form mats nearly a metre

Rubus bartonianus, or Barton's raspberry, is an uncommon North American species of flowering plant in the rose family.

Calochortus indecorus was a species of flowering plant in the lily family known by the common name Sexton Mountain mariposa lily. It was known only from Sexton Mountain in Josephine County, Oregon, in the United States. It is now presumed extinct. This perennial herb had a thick, unbranched stem up to 22 centimeters long. The inflorescence contained up to 6 bell-shaped lavender flowers. The fruit was a winged capsule up to 2 centimeters long. The plant's habitat was serpentine mountain slopes. This plant was only collected once and has not been located since. It may have been made extinct by

Polygonum heterosepalum, common name dwarf desert knotweed or oddsepal knotweed, is a plant species native to the Great Basin Desert in southwestern Idaho, northern Nevada, northeastern California, and southwestern Oregon. It has been reported from 1 county in California (Modoc), 4 in Nevada (Washoe, Humboldt, Elko and Lander), 4 in Idaho (Owyhee, Twin Falls, Elmore and Gooding), and 5 in Oregon (Lake, Malheur, Harney, Grant and Crook). The species occurs in dry, open sites in sagebrush plains and pine woodlands. Polygonum heterosepalum is a short herb up to 5 centimetres (2.0 in) tall,

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Stylocline psilocarphoides is a species of flowering plant in the family Asteraceae known by the common names baretwig neststraw and Peck's neststraw. It is native to the western United States from Idaho to southeastern California, where it grows in deserts and other dry, sandy, gravelly habitat. It is a small annual herb growing at ground level with stems measuring 1 to 18 centimeters in length. It is woolly or felt-like in texture with a coating of white hairs. The pointed leaves are up to 1.8 centimeters long and alternately arranged. The inflorescence bears oval flower heads no more than

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