Қамыстың жабайы түрі: Таралуы және зияны

Species of plant in the family Poaceae

Cortaderia selloana is a species of flowering plant in the Poaceae family. and is native to southern South America, including the Pampas region after which it is named. It is widely distributed throughout the world as a cultivated ornamental and an invasive species.

Cortaderia has become invasive in mild winter areas of North America, especially the southern United States. It has also been banned in Hawaii and New Zealand because of its ability to outgrow and displace native plants. In Europe, it was first introduced in the United Kingdom, later spreading to other countries in the continent like Ireland, Portugal, Spain, France, and Italy. It is a common urban invader. Pampas grass is fast growing and can form large masses along the roads, cliffs, riverbanks, and open areas that have been disturbed by human activities or natural disturbances. Pampas grass can displace native plants and destroy their habitats, reducing biodiversity. The plant also competes with other native plants by monopolizing resources like shade, sunlight, and ground nutrients. Because of the large surface area, the leaves pose a significant fire hazard if placed near flammable substances. C. selloana often spreads from landscaping plantings. Okada et al., 2007 find this is the source of the California population. Soil disturbance that creates bare ground can promote invasion, so it is essential to minimize disturbance or provide competition to seedlings. In order to control disturbance, applying mulch to exposed bare ground to smother seeds and prevent germination can be done. Also, planting or seeding desirable, non invasive plants can provide competition to reduce germination and seedling establishment.

Okada et al., 2007 find C. selloana populations are best distinguished by a Bayesian analysis of genetic features such as microsatellites. Several media outlets reported in the 2010s that it was planted by some couples who practise swinging in the United Kingdom as a way to indicate to other swingers that they enjoy that lifestyle. The reports caused a plunge in already declining sales, but the odd association has been dismissed by enthusiasts of the plant and gardening experts as "silly".

O'Donnell et al., 2004 first isolated from this species.