About Psammophiliella muralis (L.) Ikonn.
Psammophiliella muralis (L.) Ikonn. is an annual plant with erect, hairless (glabrous) stems. It reaches a height of 30–40 cm (12–16 in) and has linear-shaped leaves. It blooms from summer to fall, producing pink, or very rarely white, flowers that are 3.5–6 cm (1.4–2.4 in) across. After flowering, it develops ovoid or ellipsoid fruit capsules that contain snail-shaped seeds. This species is native to temperate regions of Europe and Asia, as well as tropical Pakistan. Its native range includes parts of Asia: Kazakhstan, Uzbekistan, Siberia, and Pakistan. In Europe, it is native to eastern Europe (Belarus, Estonia, Latvia, Lithuania, Ukraine), middle Europe (Austria, Belgium, the Czech Republic, Germany, Hungary, the Netherlands, Poland, Slovakia, Switzerland), northern Europe (Finland, Sweden), southeastern Europe (Bosnia and Herzegovina, Bulgaria, Croatia, Greece, Italy, North Macedonia, Romania, Serbia, Slovenia, Turkey), and southwestern Europe (France, Spain). It has naturalized in many areas: in Asia, this includes China and Japan; in North America, it occurs in Canada (Ontario and Quebec) and the United States (Connecticut, District of Columbia, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, South Dakota, Vermont, Wisconsin). In eastern North America, it grows on non-calcareous soils.
