Four-petalled tulip
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Four-petalled tulip ( Tulipa tetraphylla ) |
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The four-leaf tulip ( Tulipa tetraphylla ) is a plant from the genus of tulips ( Tulipa ). Their distribution area is in Central Asia .
description
Tulipa tetraphylla is a perennial , herbaceous plant that reaches heights of between 15 and 20 centimeters (less often only about 5 centimeters).
The egg-shaped onion has a diameter of 1.5 to 2 centimeters. The outer skin (onion cover) is black and hairy on the inside towards the tip.
The stem axis is bare. The five or six (rarely 3 to 7) leaves are crowded. They are approximately foot-shaped with a wavy edge. They are variable in size, but always tower above the flower. They are between 1 and 1.5 centimeters wide and bald on the edge but eyelashed
One or two (rarely up to four) flowers hang nodding. They are hermaphroditic and threefold. The six elongated or oblong-diamond-shaped, pointed or blunt tepals are between 3 and 4 inches long and 6 to 7 millimeters wide. They are yellow. The outer three tepals are spotted purple and abaxially greenish, overflowing. The inner tepals are dirty green on the back at the base.
The six stamens are 1 to 1.3 inches long and about a third as high as the tepals. The stamens are yellow, glabrous and narrowed from the base. The anthers are linear, yellow and measure 7 to 8 millimeters. The stylus is short.
Tulipa tetraphylla flowers in May and fruit in June and July. The number of chromosomes is 2n = 24, 48.
Occurrence
The range of Tulipa tetraphylla is in Central Asia and includes parts in the northwest of the Xinjiang Autonomous Region in the People's Republic of China and parts of Kyrgyzstan and Kazakhstan .
Tulipa tetraphylla grows in gravelly soils on dry slopes at altitudes between 1300 and 2600 meters.
Danger
The species is endangered by land use change and overgrazing and is listed on the Kyrgyzstan Red List . The slopes on which Tulipa tetraphylla thrives are grazed earlier in the year, the plants suffer from damage caused by browsing and treading.
Systematics
Tulipa tetraphylla shows transitions to Tulipa kolpakovskiana and was probably created by hybridization .
swell
Unless otherwise stated, the information in this article is taken from the sources indicated under literature:
literature
- Chen Xinqi, Helen V. Mordak: Tulipa tetraphylla. In: Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 24: Flagellariaceae through Marantaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 2000, ISBN 0-915279-83-5 , pp. 125 (English). , (online)
- AI Vvedensky: Tulipa. In: VL Komarov (ed.), N. Landau (transl.): Flora of the USSR Volume 4: Liliiflorae and Microspermae . Israel Program for Scientific Translations, Jerusalem 1968, p. 268f (Russian. Original: Botanicheskii institut (Akademiia nauk SSSR). Leningrad 1935, p. 347) (online)