Compilation
Machaeranthera canescens

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Name

Identification
Isotype of Machaeranthera canescens (Pursh) A. Gray [family ASTERACEAE ] (stored under name); Verified by S. Whitcomb, 2009
Related name
  • Machaeranthera pattersonii
  • Machaeranthera asteroides
  • Aster subalpina
  • Aster biennis
  • Dieteria pulverulenta
  • Machaeranthera subalpina
  • Machaeranthera magna
  • Aster pattersoni
  • Machaeranthera aquifolia
  • Dieteria sessiliflora
  • Machaeranthera superba
  • Machaeranthera ramosa
  • Machaeranthera sp.
  • Machaeranthera canescens
  • Dieteria viscosa
  • Dieteria divaricata
  • Machaeranthera bigelovii
Common name
  • Hoary-aster, Flora of North America Vol. 20

Flora

Entry for Dieteria bigelovii (A. Gray) D. R. Morgan & R. L. Hartman var. commixta (Greene) D. R. Morgan & R. L. Hartman [family ]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Dieteria bigelovii (A. Gray) D. R. Morgan & R. L. Hartman var. commixta (Greene) D. R. Morgan & R. L. Hartman [family ], Sida, 20: 1394. 2003
Machaeranthera commixta Greene [family COMPOSITAE], Pittonia, 4: 71. 1899
Machaeranthera bigelovii (A. Gray) Greene var. commixta (Greene) B. L. Turner [family COMPOSITAE]
Machaeranthera canescens (Pursh) A. Gray var. commixta (Greene) S. L. Welsh [family COMPOSITAE]
Treatment Author(s)
David R. Morgan
Information
Leaf blades lanceolate to oblanceolate, mid 20–60 × 5–12 mm, margins usually entire, sometimes dentate or serrate, faces glabrous or sparsely puberulent, often sparsely stipitate-glandular. Involucres broadly turbinate, 7–13 mm, widths 1–1.5 times heights. Phyllaries 25–50, 1–2 mm wide (at midpoint), apices acute to acuminate, 2–4 mm. Ray florets 12–30. 2n = 8.
Phenology
jun-aug (summer), sep (fall)
Altitude range
2400–3400 m;
Distribution
USA Utah.
Discussion
Variety commixta is found in and near the southern Wasatch Mountains.

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