| Sedum moranii | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Core eudicots |
| Order: | Saxifragales |
| Family: | Crassulaceae |
| Genus: | Sedum |
| Species: | S. moranii |
| Binomial name | |
| Sedum moranii R.T.Clausen | |
| Synonyms | |
Cotyledon glandulifera | |
Sedum moraniii is a rare species of flowering plant in the stonecrop genus known by the common name Rogue River stonecrop. [1] It is endemic to Oregon in the United States, where it only grows in Josephine County next to the Rogue River. [2]
Sedum is a large genus of flowering plants in the family Crassulaceae, members of which are commonly known as stonecrops. The genus has been described as containing up to 600 species updated to 470. They are leaf succulents found primarily in the Northern Hemisphere, but extending into the southern hemisphere in Africa and South America. The plants vary from annual and creeping herbs to shrubs. The plants have water-storing leaves. The flowers usually have five petals, seldom four or six. There are typically twice as many stamens as petals.
Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. The extreme opposite of endemism is cosmopolitan distribution. An alternative term for a species that is endemic is precinctive, which applies to species that are restricted to a defined geographical area.
Oregon is a state in the Pacific Northwest region on the West Coast of the United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. The parallel 42° north delineates the southern boundary with California and Nevada. Oregon is one of only three states of the contiguous United States to have a coastline on the Pacific Ocean.
This is a perennial herb with a glandular rootstock producing rosettes of leaves and flowering shoots. The fleshy leaves are green in color and the young ones are waxy in texture. [3] Mature stems and leaves may be reddish or purple. [2] Leaves toward the ends of the stems may be hairy. They are up to 3.2 centimeters long by 1.4 wide. The flowering stem is up to 30 centimeters long. It is hairy and glandular, unbranched, erect and curving when young. It is lined with alternately arranged leaves. It has an inflorescence of 20 to 30 flowers with five green sepals and five yellow petals. [3] Blooming occurs in May and June, sometimes into July. [2]
A rootstock is part of a plant, often an underground part, from which new above-ground growth can be produced. It could also be described as a stem with a well developed root system, to which a bud from another plant is grafted. It can refer to a rhizome or underground stem. In grafting, it refers to a plant, sometimes just a stump, which already has an established, healthy root system, onto which a cutting or a bud from another plant is grafted. In some cases, such as vines of grapes and other berries, cuttings may be used for rootstocks, the roots being established in nursery conditions before planting them out. The plant part grafted onto the rootstock is usually called the scion. The scion is the plant that has the properties that propagator desires above ground, including the photosynthetic activity and the fruit or decorative properties. The rootstock is selected for its interaction with the soil, providing the roots and the stem to support the new plant, obtaining the necessary soil water and minerals, and resisting the relevant pests and diseases. After a few weeks the tissues of the two parts will have grown together, eventually forming a single plant. After some years it may be difficult to detect the site of the graft although the product always contains the components of two genetically different plants.
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. Inflorescence can also be defined as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern.
A sepal is a part of the flower of angiosperms. Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom. The term sepalum was coined by Noël Martin Joseph de Necker in 1790, and derived from the Greek σκεπη (skepi), a covering.
This plant is most often found growing in rock outcrops and cliffs of serpentine. Most of the 25 occurrences are on the cliffs above the north bank of the Rogue River, in sunny locations. Other plants in the habitat include Pacific madrone (Arbutus menziesii), Wallace's spikemoss (Selaginella wallacei), poison oak (Toxicodendron diversilobum), goldback fern (Pentagramma triangularis ssp. triangularis), yarrow (Achillea millefolium), mountain coyote mint (Monardella odoratissima), canyon live oak (Quercus chrysolepis), Oregon white oak (Quercus garryana), bearbrush (Garrya fremontii), Douglas-fir (Pseudotsuga menziesii), silverback luina (Luina hypoleuca), and other Sedum species. There are also several types of mosses. [2]
Arbutus menziesii, the Pacific madrone or madrona, is a species of tree in the family Ericaceae, native to the western coastal areas of North America, from British Columbia to California.
Selaginella wallacei is a species of spikemoss known by the common name Wallace's spikemoss. It is native to western North America from British Columbia to California to Montana, where it can be found in many types of habitat, including open and shaded areas, and wet to dry environments. This lycophyte is variable in appearance, its form depending on the habitat it grows in. It can be spreading with many narrow branches, or a small, dense mat. The forking stems grow up to about 25 centimeters long, but may remain much shorter in dry conditions. They are lined with linear, lance-shaped, or oblong leaves up to 4 millimeters long including the bristles at the tips. The strobili containing the reproductive structures may be quite long, reaching up to 9 centimeters.
Toxicodendron diversilobum, commonly named Pacific poison oak or western poison oak, is a woody vine or shrub in the sumac family, Anacardiaceae. It is widely distributed in western North America, inhabiting conifer and mixed broadleaf forests, woodlands, grasslands, and chaparral biomes. Peak flowering occurs in May. Like other members of the genus Toxicodendron, T. diversilobum causes itching and allergic rashes in many humans after contact by touch or smoke inhalation.
Most occurrences are on Bureau of Land Management land. Threats to the species include poaching for use in rock gardens, recreation and trail maintenance, alteration of the hydrology of the area, logging, and mining. [2]
The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior that administers more than 247.3 million acres (1,001,000 km2) of public lands in the United States which constitutes one-eighth of the landmass of the country. President Harry S. Truman created the BLM in 1946 by combining two existing agencies: the General Land Office and the Grazing Service. The agency manages the federal government's nearly 700 million acres (2,800,000 km2) of subsurface mineral estate located beneath federal, state and private lands severed from their surface rights by the Homestead Act of 1862. Most BLM public lands are located in these 12 western states: Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming.
Poaching has been defined as the illegal hunting or capturing of wild animals, usually associated with land use rights.
A rock garden, also known as a rockery or an alpine garden, is a small field or plot of ground designed to feature and emphasize a variety of rocks, stones, and boulders.
