Crataegus rhipidophylla
Flowers and leaves of the Großkelchigen hawthorn (Crataegus rhipidophylla )
The Großkelchige hawthorn (Crataegus rhipidophylla ), also called Langkelchiger hawthorn, is a plant species of pome fruit crops ( Pyrinae ) within the rose family ( Rosaceae ). He is one of six occurring in Central Europe hawthorn species.
Description
The Großkelchige hawthorn grows as a large shrub or small tree, reaching heights of growth up to nine meters. The branches are armed with thorns sprout. Its 3 to 5 centimeters long leaves are sinuate. All lobes are finely toothed, sometimes only the portion of the petiole to the tip of the first leaf lobe. The stipules flowering shoots are provided with numerous teeth and glandular heads.
It blooms in June with white, showy fragrant flowers. The Langkelchige Hawthorn has always narrow, lanceolate to linealische sepals. They remain to maturity of the fruit, they are then repelled ( subspecies rhipidophylla ) to erect ( subspecies lindmanii ). The flowers always contain only one pen, two pencils with exceptions occur rarely with central flowers of the inflorescence on. The apple fruits ripen in August and September and often continue until well into the spring on the tree. They are red, 0.9 to 1.5 inches long, always contain only one core and taste tart and sweet; the pulp is yellow and mealy. The shape of the fruit is round to oval at the subspecies rhipidophylla and more cylindrical in shape at the subspecies lindmanii.
The chromosome number is.
Occurrence
The distribution area of Großkelchigen hawthorn are mainly the lowlands and highlands of the temperate continental Europe. It can be found both in hedges outside the forest at the edge of the forest and on thin places within deciduous forests; he is the schattenverträglichste occurring in Central Europe hawthorn species. In lowland forests of hawthorn missing. He is a character - type of association Galio Carpinetum, as it occurs in the position -Carpinetum and Carici Fagetum and in Prunetalia companies.
System
Synonyms for C. rhipidophylla Gand. are C. rosiformis Janka and C. curvisepala Lindm.
The Großkelchige hawthorn and the other occurring in Central Europe hawthorn species resemble each other so much that Linnaeus himself went out of the existence of only one type, which he called Crataegus oxyacantha.
The variety has been ordered for German-speaking by Knud Ib Christensen into two subspecies, the common Großkelchige hawthorn (Crataegus rhipidophylla Gand. Ssp. Rhipidophylla ) and Lindman hawthorn (Crataegus rhipidophylla ssp. Lindmanii ( Hrab. - clock. ) AI BC). Lindman Hawthorn is but for a different view of a stand-alone article
Because of the complexity of intraspecific relationships, due to the frequent intersections and the sliding transitions between sub- species and the occurrence of polyploid specimens that may form clonal populations, some botanists argue for the different subspecies. Than aggregated collective species Crataegus rhipidophylla Gand s l summarize.