Английская Википедия:Hymenothrix dissecta
Шаблон:Short description Шаблон:Speciesbox
Hymenothrix dissecta is a North American species of flowering plants in the family Asteraceae known by the common names yellow ragweed and ragleaf bahia. It is native to the western United States as far north as the Black Hills of South Dakota and Wyoming, as well as in northern Mexico (Baja California, Chihuahua, Coahuila, Sonora).[1]
Hymenothrix dissecta can be found in several habitat types, from dry mountain slopes to roadsides. This is an annual or biennial herb producing a spindly, branching, erect stem variable in height from 20 centimeters to well over one meter. The stems are reddish and generally glandular. The small leaves are mostly located toward the base of the stem and are finely divided into linear lobes. The spreading inflorescence produces several flower heads, each lined with hairy, glandular phyllaries. Each head has a fringe of rounded yellow ray florets about half a centimeter long and a center of yellow disc florets. The fruit is a dark-colored achene 3 or 4 millimeters long. If there is any pappus it is small and scale-like.[2][3][4]
American botanist Asa Gray described the species as Amauria dissecta in 1849 from material collected in a valley between Guajuquilla and Mapimi in Chihuahua. It placed in the new genus Hymenothrix by Bruce Gregg Baldwin in 2016.[5]
References
External links
- Шаблон:Commons-inline
- United States Department of Agriculture Plants Profile
- Colorado Wildflowers
- Calphotos Photo gallery, University of California
Шаблон:Asteroideae-stub
Шаблон:Medicinal-plant-stub
- ↑ Biota of North America Program 2014 county distribution map
- ↑ Flora of North America Vol. 21 Page 393 Amauriopsis dissecta (A. Gray) Rydberg
- ↑ Rydberg, Per Axel in Britton, Nathaniel Lord. 1914. North American Flora 34(1): 37.
- ↑ Jepson Manual Treatment
- ↑ Ошибка цитирования Неверный тег
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- Английская Википедия
- Plants used in traditional Native American medicine
- Flora of the South-Central United States
- Plants described in 1849
- Bahieae
- Flora of the Southwestern United States
- Flora of the Northwestern United States
- Flora of Northwestern Mexico
- Flora of Northeastern Mexico
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