Compilation
Isocoma drummondii

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Name

Identification
Linosyris drummondii Torr. & A.Gray [family COMPOSITAE ] Verified by Not on sheet, Isocoma drummondii (Torr. & A. Gray) Greene [family COMPOSITAE ] (stored under name); Verified by Not on sheet, Linosyris drummondii Torr. & A.Gray [family COMPOSITAE ] Verified by Not on sheet,
Related name
  • Isocoma drummondii
  • Bigelowia drummondii
  • Linosyris drummondii
Common name
  • Drummond’s jimmyweed, Flora of North America Vol. 20

Flora

Entry for Isocoma drummondii (Torrey & A. Gray) Greene [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Isocoma drummondii (Torrey & A. Gray) Greene [family COMPOSITAE], Erythea, 2: 111. 1894
Linosyris drummondii Torrey & A. Gray [family COMPOSITAE], Fl. N. Amer., 2: 233. 1842
Haplopappus drummondii (Torrey & A. Gray) S. F. Blake [family COMPOSITAE]
Isocoma megalantha Shinners [family COMPOSITAE]
Treatment Author(s)
Guy L. Nesom
Information
Herbage glabrous, not resinous. Leaf blades narrowly oblong to oblanceolate-oblong, 13–50 mm, margins usually entire, sometimes distally toothed (shallow teeth in 1–3 pairs). Involucres (5.5–)6.5–8 × 4.5–5.5(–7) mm. Phyllary apices usually green, not aristate, usually strongly gland-dotted, without resin pockets. Florets (18–)22–34; corollas 5.8–7.5 mm. Cypsela ribs not forming hornlike extensions.
Phenology
mar, may (spring), jun-jul (summer)
Altitude range
0–20 m;
Distribution
Mexico (Tamaulipas).USA Tex.

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