Spergularia rubra, the red sandspurry or red sand-spurrey, is a plant species in the family Caryophyllaceae. It is native to Europe, Asia and North Africa, and it is present on other continents, including North and South America and Australia, as an introduced species and in many areas a common weed. It grows in a wide variety of habitat types.
Sedum albomarginatum is a rare species of flowering plant in the family Crassulaceae known by the common name Feather River stonecrop. It is endemic to California where it is known from fewer than 20 occurrences along the Feather River in Plumas and Butte Counties. It grows on steep cliffs and mountain slopes in rocky serpentine substrates.
Sedum eastwoodiae is a rare species of flowering plant of the stonecrop Crassulaceae family. It is known by its common name Red Mountain stonecrop. It is endemic to Mendocino County, California, where it is known from only four occurrences on Red Mountain, near Ukiah. The total number of plants in existence is estimated to be around 5300. They can be found on steep, exposed, rocky mountain slopes of serpentine substrate. This species has also been treated as a subspecies of Sedum laxum.
Sedum lanceolatum is a species of flowering plant in the family Crassulaceae known by the common names spearleaf stonecrop and lanceleaf stonecrop.
Sedum laxum is a species of flowering plant in the family Crassulaceae known by the common name roseflower stonecrop. It is native to southwestern Oregon and northwestern California, where it can be found in rocky mountainous habitat. It is a succulent plant forming basal rosettes of oval or oblong leaves up to 3 centimeters long. The inflorescence is made up of one or more erect arrays of many flowers. The flowers have reddish or yellowish petals up to 1.3 centimeters long each.
Sedum niveum is a species of flowering plant in the family Crassulaceae known by the common name Davidson's stonecrop. It is native to southern California and northern Baja California, where it is known from several local mountain ranges. It grows in rocky, forested habitat. It is a succulent plant forming basal mats of spoon-shaped or oval leaves no more than a centimeter long. The small inflorescence grows up to 9 centimeters tall and bears several flowers with white petals tinged or veined with pink. The stamens have red or black anthers.
Sedum oblanceolatum is a species of flowering plant in the family Crassulaceae known by the common names oblongleaf stonecrop and Applegate stonecrop. It is native to the Klamath Mountains of southwestern Oregon and far northern California, where it grows on many types of rocky substrate, such as serpentine soils and other ultramafics. It is a succulent plant forming basal rosettes of waxy leaves. The leaves are widely lance-shaped, widest near the distal end and narrowing to rounded or notched tips. Smaller leaves occur farther up the stem. The small inflorescence grows a few centimeters tall and bears up to 50 flowers in a flat-topped array. The flowers have cream or yellowish petals up to a centimeter long.
Sedum obtusatum is a species of flowering plant in the family Crassulaceae known by the common name Sierra stonecrop. It is native to the Sierra Nevada and adjacent high mountain ranges of California, its distribution extending north into Oregon and east into Nevada. It grows in rocky mountain habitat.
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 farther up the stem. The leaves are green in color and waxy in texture. The inflorescence is an erect, wide open array of many flowers. The flowers have yellow petals with red-tinged or white-speckled undersides.
Sedum radiatum is a species of flowering plant in the family Crassulaceae known by the common name Coast Range stonecrop. It is native to Oregon and California, where it is known from several coastal and inland mountain ranges, including the Klamath Mountains and the Sierra Nevada. It grows in many types of rocky habitat, sometimes on serpentine soils. It is an annual or biennial succulent plant producing several stems with elevated, somewhat basal rosettes of leaves. The leaves are not much more than a centimeter long. They are green or yellowish with green, purple or red veining. The inflorescence is a short, erect array of many densely packed flowers. The flowers have yellow, cream, or white petals which are lance-shaped and one half to 1 centimeter long.
Sedum spathulifolium is a species of flowering plant in the family Crassulaceae known by the common names broadleaf stonecrop, yellow stonecrop, and spoon-leaved stonecrop. An evergreen perennial, it is native to western North America from British Columbia to southern California, where it can be found often in shade in many types of rocky habitat in coastal and inland hills and mountains.
Silene conoidea is a species of flowering plant in the family Caryophyllaceae known by the common names weed silene and large sand catchfly. It is native to Eurasia, and it is known in other parts of the world, such as western North America, as a weed. It is an annual herb growing up to a meter in height with a hairy, partially glandular stem. The lance-shaped leaves are up to 12 centimeters long near the base of the plant and smaller farther up. The flower is enclosed in an inflated, hairy, glandular calyx of fused sepals which is ridged with many veins. It is open at the top, revealing five bright pink petals.
Silene grayi is a species of flowering plant in the family Caryophyllaceae known by the common name Gray's catchfly. It is native to the mountains of Oregon and northern California, including the Klamath Mountains, where it grows in chaparral, mountain forests, and the talus of high slopes in alpine climates. It has been observed to occur in a plant association with oceanspray, littleleaf silverback, and Gray's bedstraw. It is a perennial herb producing a decumbent or erect stem up to 20 or 30 centimeters long from a woody, branching caudex. The base of the plant is covered in tufts of leaves. These basal leaves are lance-shaped to nearly spoon-shaped, fleshy, and up to 4 centimeters long. Smaller, narrower leaves occur farther up the stems. Each flower has a tubular calyx of fused sepals lined with ten green or red veins and covered in glandular hairs. It is open at the tip, revealing five pink or purple petals. The petal tips and appendages are divided into narrow lobes.
Silene lemmonii is a species of flowering plant in the family Caryophyllaceae known by the common name Lemmon's catchfly.
Silene menziesii is a species of flowering plant in the family Caryophyllaceae known by the common names Menzies' campion and Menzies' catchfly. It is native to western North America from Alaska through the western half of Canada to the southwestern United States. It can be found in many types of habitat and it is quite common in much of its range. It is variable in morphology and there are a number of varied subtaxa. In general, it is a perennial herb growing from a caudex, appearing matlike, decumbent, or erect, with stems a few centimeters to over half a meter long. It is usually hairy in texture, with upper parts bearing sticky glandular hairs. The leaves are lance-shaped, oppositely arranged in pairs, and a few centimeters in length, upper leaves usually smaller than lower. Flowers may occur in a cyme at the top of the stem, or in leaf axils, or both. Each is encapsulated in a hairy, veined calyx of fused sepals. The petals are white with two lobes at the tips. The plant is dioecious with male and female plants producing different flowers. The male and female flower types look the same externally; the stamens are reduced in female plants and the stigmas are reduced in the male.
Spergularia villosa is a species of flowering plant in the family Caryophyllaceae known by the common name hairy sandspurry. It is native to southern South America, and it is known in the southwestern United States and Baja California as an introduced species and casual weed. It grows in a wide variety of habitat types. It is a small perennial herb producing a sprawling stem up to 30 centimeters long with a woody base. It is coated in glandular hairs. The leaves are generally linear in shape and measure a few centimeters long. They are accompanied by dull white lance-shaped stipules. The flowers have hairy, glandular sepals and five oval whitish petals.
Streptanthella is a monotypic genus of flowering plants in the family Brassicaceae containing the single species Streptanthella longirostris, which is known by the common name longbeak streptanthella, or simply streptanthella. It is native to western North America, where it occurs throughout the western United States and the northwestern states of Mexico. It grows in many types of habitat, including deserts, sagebrush, foothill woodlands, sandy flats, chaparral, and scrubby canyons. It is an annual herb producing a slender, erect, multibranched stem up to half a meter tall. The lower leaves are lance-shaped with a toothed or smooth edge and leaves higher on the plant are narrower, linear in shape, and less often toothed. The top of the stem is occupied by a long inflorescence which is an open raceme of many flowers. The top of the inflorescence bears the newest buds which are often purple in color. More mature flowers stud the stem at intervals below, each on a short pedicel. Flowers measure under a centimeter long. Each flower is enclosed in four thick sepals. At the tip are the spoon-shaped petals which are white to yellow with purple veining. The fruit is a long, dangling silique up to 7 centimeters in length containing flat, winged seeds.
Thelypodium stenopetalum is a rare species of flowering plant in the mustard family known by the common names slenderpetal thelypody, slender-petaled thelypodium and slender-petaled mustard. It is endemic to the San Bernardino Mountains of southern California, where it is known from only three or four extant occurrences in moist mountain meadows near Big Bear Lake. Its remaining habitat is considered seriously threatened and the plant is a federally listed endangered species in the United States.
Lomatium ochocense is a rare species of flowering plant in the carrot family known by the common name Ochoco lomatium. It is endemic to Oregon, where it is limited to the Ochoco Mountains of Crook County.
Physaria fremontii is a species of flowering plant in the family Brassicaceae known by the common name Fremont's bladderpod. It is endemic to Wyoming in the United States, where it occurs only in and around the Wind River Range in Fremont County.
