Ecology

Habitat

Depth range based on 4 specimens in 1 taxon.

Environmental ranges
  Depth range (m): 1 - 1
 
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records: 26
Specimens with Sequences: 37
Specimens with Barcodes: 22
Species: 5
Species With Barcodes: 5
Public Records: 3
Public Species: 1
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Barcode data

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Wikipedia

Euthamia

Euthamia is a genus of flowering plants in the aster family, Asteraceae. They are known commonly as goldentops[1] and grass-leaved goldenrods.[2][3] The species were formerly classed in genus Solidago, the goldenrods. They were separated on the basis of morphological differences, such as the arrangement of the flower heads in the inflorescence and the glands on the leaves, and of DNA data.[4] Authors have recognized 5 to 10 species.[2] They are native to North America, but certain species are introduced in Europe and Asia.[4]

These species are quite variable in appearance, the variation often influenced by environmental conditions. In general, they are rhizomatous perennial herbs or subshrubs growing erect stems 40 centimeters to 2 meters tall. The stems are hairy to hairless and branching or unbranched. The leaves are alternately arranged along the stem. They are linear to lance-shaped, smooth-edged, hairy to hairless, and gland-dotted, if sometimes sparsely. The flower heads are solitary or borne in a dense or spreading array. The back of the head is layered in phyllaries which may be resinous. There are 7 to 22 yellow ray florets, sometimes more, and several yellow disc florets. The fruit is a rough-textured cypsela tipped with a pappus of white bristles.[4]

Euthamia species are used as food plants by the larvae of some Lepidoptera species including Coleophora intermediella, which feeds exclusively on E. graminifolia.

Species include:[4][5]

References[edit source | edit]

  1. ^ Euthamia. USDA PLANTS.
  2. ^ a b Euthamia: Grass-leaved goldenrods. Astereae Lab. University of Waterloo.
  3. ^ Euthamia. The Jepson eFlora 2013.
  4. ^ a b c d Euthamia. Flora of North America.
  5. ^ Euthamia. ITIS.
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