Narrow-leaved zinnia
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Narrow-leaved zinnia ( Zinnia angustifolia ) |
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| Zinnia angustifolia | ||||||||||||
| Humb. , Bonpl. & Kunth |
The zinnia angustifolia ( Zinnia angustifolia ) is a plant of the genus Zinnia ( Zinnia ) in the family of Compositae (Asteraceae).
features
The narrow-leaved zinnia is an annual plant that reaches heights of 25 to 40 centimeters. The leaves are linear-lanceolate, measure 20 to 70 × 4 to 8 millimeters and are about seven times as long as they are wide. The flower heads have a diameter of 3.5 to 5 centimeters. The black-red disc- shaped flowers have bald tips and thick, blunt and recurved tips. The ray-flowers are orange-yellow with a yellow central stripe. The fruit has an awn .
The flowering period extends from July to September.
The number of chromosomes is 2n = 22.
Occurrence
The narrow-leaved zinnia is found on pastures in the northern and western Mexican highlands . On Hispaniola the species is a neophyte.
Systematics
One can distinguish between two varieties:
- Zinnia angustifolia var. Angustifolia : It comes in the Mexican states of Chihuahua, Durango, San Luis Potosi, Sinaloa, Sonora, Zacatecas, Aguascalientes, Guanajuato, Jalisco, Michoacan and Nayarit ago.
- Zinnia angustifolia var. Greggii (BL Rob. & Greenm.) McVaugh : It occurs in the Mexican states of Durango, Sinaloa, Jalisco, Michoacan and Nayarit.
Synonyms
- Zinnia angustifolia Kunth has the synonym Zinnia linearis Benth.
use
The narrow-leaved zinnia is widely used as an ornamental plant for summer flower beds and borders and as a cut flower. It has been in culture since 1887 at the latest. There are several varieties.
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 .
Individual evidence
- ↑ Zinnia angustifolia at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ^ A b c Zinnia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved March 5, 2018.