Aeonium urbicum
Aeonium urbicum
Aeonium urbicum is a species of the genus Aeonium in the family Crassulaceae ( Crassulaceae ).
- 3.1 Literature
- 3.2 Notes and references
Description
Vegetative characteristics
Aeonium urbicum grows as a perennial, unbranched or rarely slightly branched, monocarper shrub, reaching heights of growth of up to 2 meters. The barren, rough young, net-like patterned, ascending shoots have a diameter of up to 6 inches. Your rather flat rosettes reach a diameter of 15 to 32 inches. The obovate or inverted lanceolate, glauken or green, almost bald or finely downy hairy leaves are 8 to 22 inches long, 3 to 5.5 inches wide and 0.4 to 0.7 inches thick. Towards the peak, they are pointed. The base is wedge-shaped. The edge of the sheet is covered with a more or less straight eyelashes, which are 0.5 to 1 mm long. The leaves are reddish variegat different.
Generative features
The dome-shaped inflorescence has a length of 15 to 75 centimeters and a width of 10 to 45 centimeters. The peduncle is 3-15 inches long. The eight - to zehnzähligen flowers are at a 2-6 mm long, pedicel throats. Their sepals are bald. The whitish, sometimes reddish variegaten, lanceolate, pointed petals are 7-10 mm long and 1.2 to 2 millimeters wide. The stamens are bald.
Systematics and distribution
Aeonium urbicum is common in Tenerife at altitudes of up to 1900 meters.
The first description as Sempervivum urbicum by Jens Wilken Hornemann was published in 1819. Philip Barker Webb and Sabin Berthelot set the style in 1841 in the genus Aeonium.