Forget tobacco
| Forget tobacco | ||||||||||||
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Forget tobacco ( Nicotiana forgetiana ), illustration |
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| Nicotiana forgetiana | ||||||||||||
| Hemsl. |
The forget tobacco ( Nicotiana forgetiana ) is a species of the tobacco genus ( Nicotiana ).
features
The forget tobacco is an annual or short-lived perennial herbaceous plant that reaches heights of 50 to 100 centimeters. The rosette leaves are 15 to 30 centimeters long and finely hairy.
The hermaphrodite flower is fivefold. The five petals are fused Roehrig. The light green and purple outside crown is 2 to 3.3 inches long. The coronet has broad, egg-shaped, pointed lobes, which makes the crown appear star-shaped when viewed from above. The stamens are the same length and all arise below the center of the corolla tube.
The flowering period extends from July to September.
The number of chromosomes is 2n = 18.
Occurrence
The Forget tobacco occurs in southeast Brazil on roadsides and roadsides and on dry grassland.
use
Forget tobacco is widely used as an ornamental plant for borders. The species has probably been in culture since the 19th century.
Systematics
The species is classified within the genus Nicotiana in the section Alatae . Molecular biological studies showed that Nicotiana bonariensis is the sister species to Nicotiana forgetiana . A hybrid of Nicotiana forgetiana × Nicotiana alata is called Nicotiana × sanderae .
supporting documents
Individual evidence
- ^ Nicotiana forgetiana at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ James J. Clarkson et al .: Phylogenetic relationships in Nicotiana (Solanaceae) inferred from multiple plastid DNA regions . In: Molecular Phylogenetics and Evolution , Volume 33, 2004. Pages 75-90.
literature
- Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler excursion flora from Germany. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 .
