White-rim milkweed
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White-rimed milkweed ( Euphorbia marginata ) |
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| Euphorbia marginata | ||||||||||||
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The Euphorbia marginata ( Euphorbia marginata ), even snow on the mountains , mountain snow , American Edelweiss or bride and groom plant called, is a plant type from the genus spurge ( Euphorbia ) in the family of the spurge family (Euphorbiaceae).
description
The white-rimmed milkweed is an annual plant that reaches a height of about 0.8 meters. It grows unbranched at first, but later branched to bushy starting from the central stem. The basal leaves are colored green, the bracts are white and usually show a narrow green central part. There is a certain similarity with the unrelated edelweiss ( Leontopodium nivale subsp. Alpinum ), which belongs to the Asteraceae family.
The flowering period is mostly in August and September. The actual flowers are small, inconspicuous and whitish-greenish in color and are located in the middle of the bracts.
The capsule fruits are divided into three parts and have short hairs, the seeds are smooth and light brown in color. The seeds are distributed into the environment from the capsule fruits that pop up. The annual white-rim milkweed sows by itself.
The number of chromosomes is 2n = 56.
Occurrence
The homeland of the white-rimed milkweed is the western and central United States and eastern and southern Mexico . However, it also occurs as a neophyte in Central Europe . It prefers sunny locations. It is cultivated as an ornamental plant.
ingredients
All parts of white-rimmed milkweed contain milky sap, which can cause slight skin irritation in humans. This is due to the substance phorbol ester .
literature
- Christopher Brickell, The Royal Horticultural Society, Die Große Pflanzen-Enzyklopädie , Vol. 1, Dorling Kindersley Verlag GmbH, Munich, 2010, ISBN 978-3-8310-1729-4
- The large Ulmer Gartenlexikon , Ulmer KG, Stuttgart, 2010, ISBN 978-3-8001-6710-4
Individual evidence
- ↑ Euphorbia marginata at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ Rafaël Govaerts (Ed.): Euphorbia marginata. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 21, 2020.
- ↑ www.giftpflanze.com.
