Echinocereus poselgeri
Echinocereus poselgeri Plate 38 of 1903 from Blooming cactus
Echinocereus poselgeri is a flowering plant in the genus Echinocereus from the cactus family ( Cactaceae ). The specific epithet honors the poselgeri German physician, chemist and botanist Heinrich Poselger (1818-1883), who collected 1849-1851 succulent plants of North America. English common names are " Dahlia Cactus ", " Lead Pencil Cactus ", " Pencil Cactus" and " Sacasil ".
Description
Echinocereus poselgeri usually grows with several spreizklimmenden shoots and forms a tuberous, dahlia -like rootstock from. The dark blue-green slender and cylindrical shoots tapering to its tip. They are 60 to 120 cm long and have diameters of 1 to 2 centimeters. There are eight to ten ribs low and unobtrusive yet not tubercles. The single slightly flattened, dark central spine facing the growing tip back and is up to 9 millimeters long. The eight to 16 whitish or greyish spines have a darker tip, and are 2 to 4.5 millimeters long.
The funnel-shaped flowers are pink magenta something. They appear at times terminally, but generally located near the shoot tips are up to 6 inches long and reach a diameter of up to 7 cm. The dark green to brown fruits are egg-shaped and filled with wool and persistent thorns.
Distribution, systematics and hazard
Echinocereus poselgeri is distributed in the United States in the south of the State of Texas and in the Mexican states of Coahuila, Durango, Nuevo Leon, Tamaulipas and San Luis Potosi in Langen deep in sandy soil.
The first description by Charles Lemaire was published in 1868. The species belongs to the section Wilcoxia.
Nomenclatural synonyms are Cereus poselgeri ( Lem. ) JMCoult. (1896) and Wilcoxia poselgeri ( Lem. ) Britton & Rose (1909). Other synonyms include Echinocereus tamaulipensis ( Werderm. ) Mich.Lange (1995), Echinocereus kroenleinii ( Mich.Lange ) W.Blum & Waldeis (1999), Echinocereus waldeisii Haugg (1993) and Echinocereus tuberosus ( Poselg. ) Rümpler (1885 ).
In the Red List of Threatened Species IUCN, the type is known as " Least Concern ( LC) ," ie, than not led at risk.