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Dieteria canescens

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Kingdom
  
Genus
  
Higher classification
  
Daisy family

Order
  
Scientific name
  
Machaeranthera canescens

Rank
  
Species

Dieteria canescens Dieteria canescens Wikipedia

Similar
  
Machaeranthera, Dieteria, Daisy family, Machaeranthera tanacetifolia, Erigeron divergens

Dieteria canascens (formerly Machaeranthera canescens) is an annual plant or short lived perennial plant in the (daisy family), known by the common names hoary tansyaster and hoary-aster.

Contents

Dieteria canescens Dieteria canescens photos Saskatchewan Wildflowers

"Canescens" means "gray-hairy".

Range and habitat

Dieteria canescens wnmueduacademicnspagesgilafloradieteriacanes

Dieteria canascens is native to western and central North America, from the Pacific Coast to the Western part of the Great Plains, from British Columbia south to California, Sonora, and Chihuahua, east to Saskatchewan, the Dakotas, and Oklahoma, with a few isolated populations in Iowa and Minnesota.

Growth pattern

Dieteria canescens SEINet Arizona Chapter Dieteria canescens

Dieteria canascens is a woolly-haired, glandular annual or perennial herb with one or more branching stems sometimes exceeding 100 cm (39 in) in height.

Leaves and stems

Dieteria canescens Dieteria canescens Hoary Tansyaster Hoary Tansyaster Hoary

The linear to oblong leaves may reach 10 centimetres (3.9 inches) long near the base of the stems, their edges usually serrated or toothed.

The stems are glandular with short hairs.

Flowers and fruits

Dieteria canescens 2316Dieteriacanescens450x298jpg

The inflorescence bears one or more flower heads lined with several layers of pointed, curling or curving phyllaries. The head has a center of many yellow disc florets and a fringe of blue or purple ray florets each 1 to 2 centimeters long. The fruit is an achene around 3 millimeters in length tipped with a pappus of long hairs.

A number of insects can often be found in the flowers.

Uses

Dieteria canescens SEINet Arizona Chapter Dieteria canescens

The Zuni people take an infusion the whole plant of subspecies canescens, variety canescens and rub it on the abdomen as an emetic.

Varieties
  • Dieteria canescens var. ambigua (B.L.Turner) D.R.Morgan & R.L.Hartm. -Arizona, Colorado, New Mexico
  • Dieteria canescens var. aristata (Eastw.) D.R.Morgan & R.L.Hartm. - Arizona, Colorado, New Mexico, Utah
  • Dieteria canescens var. canescens - Alberta, British Columbia, Saskatchewan; Arizona, California, Colorado, Idaho, Montana, Nebraska, Nevada, North Dakota, Oregon, South Dakota, Utah, Wyoming
  • Dieteria canescens var. glabra (A.Gray) D.R.Morgan & R.L.Hartm. - Arizona, Colorado, Kansas, New Mexico, Texas, Wyoming, Chihuahua
  • Dieteria canescens var. incana (Lindl.) D.R.Morgan & R.L.Hartm. - Nebraska, South Dakota
  • Dieteria canescens var. leucanthemifolia (Greene) D.R.Morgan & R.L.Hartm. - California, Nevada, Utah
  • Dieteria canescens var. nebraskana (B.L.Turner) D.R.Morgan & R.L.Hartm. - Nebraska, South Dakota
  • Dieteria canescens var. sessiliflora (Nutt.) D.R.Morgan & R.L.Hartm. - Idaho
  • Dieteria canescens var. shastensis (A.Gray) D.R.Morgan & R.L.Hartm. - California, Nevada, Oregon
  • Dieteria canescens var. ziegleri (Munz) D.R.Morgan & R.L.Hartm. - Santa Rosa Mountains in Riverside County in California
  • References

    Dieteria canescens Wikipedia


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