Blecker, L., Creech, E., Dick, J., Gephart, S., Hefner, M., Kratsch, H., Moe, A., Schultz, B. 2020, Nevada Noxious Weed Field Guide – Sulfur cinquefoil, Extension, University of Nevada, Reno, Field Guide

Stem

  • 1-2 ft. tall, stout, covered with hairs and usually unbranched below flowers; sometimes many stems arise from crown
Photo of Sulfur cinquefoil plant stem with leaves and thin hairs.

Leaves

  • Alternate; palmate-compound with 5-7 leaflets; rough, hairy, 1-4 in. long with toothed edges (margins) 
Photo of Sulfur cinquefoil plant with green leaves

Flower

  • 0.5-1 in. wide, each on a short stalk; 5 pale-yellow petals with a notch at tip surround a yellow center 
Photo of Sulfur cinquefoil plant with yellow flower

Root

  • Woody taproot with short branch roots
 

Other

  • Often infests rangeland, pastures, roadsides and waste areas; not known to occur in Nevada
  • Perennial; reproduces by seed
 

Control

  • Hand-digging individual plants can be effective for small infestations; cultivation can also be effective; mowing does NOT control established plants
  • Apply 2,4-D, aminocyclopyrachlor, aminopyralid, chlorsulfuron, metsulfuron, picloram, or triclopyr rosette to pre-bud stage

Learn more about the author(s)

Heidi Kratsch
Heidi Kratsch
 

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