Buttercup Leaf



  1. Bulbous Buttercup grows and roots differently though and this is the main recognition feature. Unlike Creeping Buttercup that grows along stems, Bulbous Buttercups grow from bulbous roots that form hairy stems. Crowfoot, or Meadow Buttercup. Crowfoot or Ranunculus acris is also known as Meadow Buttercup.
  2. Hairy buttercup appears to be predominant in the Piedmont and Mountain regions, while bulbous buttercup is readily found in the Piedmont and Coastal Plain regions. Hairy buttercup is a hairy plant with erect, hairy stems (single or branching from the base) and a fibrous root system.
  3. Most buttercups have tuberous or fibrous roots. The flowers are solitary or loosely clustered and have five green sepals, five to many glossy yellow (sometimes white) petals, and numerous male and female structures (stamens and pistils). Cultivated varieties have been bred in many colours. The leaves are highly variable, depending on the species.

The predominant property in the plants of the Buttercup family is an acrid protoanemonin glycoside oil. Most of the species are listed as poisonous, but most are safe to taste. The buttercup taste is biting and acrid, stronger in some plants than others. Taste it and spit it out. What Causes Buttercup Leaves to Yellow? Persian buttercup (Ranunculus asiaticus) grows up to 2 feet tall and adds a splash of color to any flower garden. Plant the bulbs in U.S.

Two of the common buttercups found in North Carolina are hairy buttercup (Ranunculus sardous) and bulbous buttercup (Ranunculus bulbosus). Hairy buttercup appears to be predominant in the Piedmont and Mountain regions, while bulbous buttercup is readily found in the Piedmont and Coastal Plain regions. Hairy buttercup is a hairy plant with erect, hairy stems (single or branching from the base) and a fibrous root system. Vegetative characteristics of hairy buttercup are similar to those of bulbous buttercup, except for the bulb-like swelling at the base of the stem on bulbous buttercup. Smallflower buttercup is also found in North Carolina, and can be distinguished from hairy buttercup by the lack of hairs on its leaves. In addition, hairy and bulbous buttercup have lobed leaves, whereas most of the lower leaves of smallflower buttercup are unlobed.

Winter annual broadleaf weeds germinate in the fall or winter and grow during any warm weather, which may occur in the winter, but otherwise remain somewhat dormant during the winter. They resume growth and produce seed in the spring and die as temperatures increase in late spring and early summer. They quickly invade thin turf areas especially where there is good soil moisture. Shade may also encourage growth. Many have a prostrate growth habit and are not affected by mowing. A dense, vigorous turf is the best way to reduce the encroachment of winter annual weeds. First, select adapted turfgrass cultivars for your area and then properly fertilize, mow, and water to encourage dense growth.

Herbicide and FormulationAmount of Formulation per 1,000 sq ftAmount of Formulation per AcrePounds Active Ingredient per Acre
Preemergence and Postemergence Control
mesotrione, MOA 27 (4 SC) (Tenacity)0.092 to 0.183 fl oz4 to 8 fl oz0.125 to 0.25
Precaution and Remarks: Use on residential turf, golf courses (not greens) and sod farms for pre- and postemergence weed control. Tolerant turfgrasses include St. Augustinegrass, centipedegrass, tall fescue, fine fescue, Kentucky bluegrass, and perennial ryegrass. Add a nonionic surfactant and repeat application after 2 to 3 weeks for improved postemergence control. Tank mix with prodiamine 65 WG for extended preemergence grassy weed control. Can be applied at seeding to all tolerant grasses except fine fescue. After turf germination, wait 4 weeks or until turf has been mowed twice before making a postemergence application. Also controls henbit, chickweed, dandelion, white clover, Florida betony, Florida pusley, ground ivy, oxalis, wild violet, creeping bentgrass, and yellow nutsedge.​
[sulfentrazone + prodiamine], MOA 14 + 3 (4 SC) (Echelon)0.184 to 0.826 fl oz0.5 to 2.25 pt0.25 to 1.125
Precaution and Remarks: For use in residential and institutional lawns, athletic fields, sod farms, golf course fairways and roughs, roadsides, utility right-of-ways, railways, and industrial areas. Apply to turf following a second mowing if a good root system has been established. Apply up to 12 fluid ounces per acre to bentgrass at 0.5 inch or higher, fine fescue, and perennial ryegrass. Apply 18 to 24 fluid ounces per acre to perennial bluegrass, tall fescue, and all warm season grasses except St. Augustinegrass (do not apply) and bermudagrass (apply 18 to 36 fluid ounces per acre). For sod production, apply 6 months after establishment, and do not harvest within 3 months. Do not apply with adjuvants or surfactants. [Sulfentrazone + prodiamine should not be applied to cool-season turf with N-containing fertilizers unless some short-term discoloration is tolerable.​
Preemergence Control
Herbicide and FormulationAmount of Formulation per 1,000 sq ftAmount of Formulation per AcrePounds Active Ingredient per Acre
clopyralid, MOA 4 (3 EC) (Lontrel T&O)0.1 to 0.5 fl oz0.25 to 1.33 pt0.09 to 0.5
Precaution and Remarks: Do not apply to home lawns. May be used on bentgrass, Kentucky bluegrass, creeping, red, chewings, sheep and tall fescue, perennial ryegrass, bermudagrass, bahiagrass, buffalograss, centipedegrass, zoysiagrass, and St. Augustinegrass. Do not apply to putting greens and tees. Should be applied in a minimum of 20 gallons of water per acre. Surfactants are not necessary. Do not apply to exposed roots of certain trees and shrubs (legumes such as acacia, locust, mimosa, redbud, or mesquite) or Tilia spp. Do not use treated clippings for mulching and compost during the growing season of application.​
  • GROWTH SEASON / LIFE CYCLE
    • winter annual or perennial weed
  • GROWTH HABIT
    • upright
      Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 10, Figure 11, Figure 12
  • LEAFLET NUMBER
    • one
  • LEAF MARGIN
    • lobed
  • LEAF HAIRS
    • dense on both upper and lower surface
      Figure 8, Figure 9
  • LEAF / LEAFLET SHAPE
    • oval/egg-shaped/elliptical
  • LEAF WIDTH
    • 1/2 - 2 inches
  • LEAF VENATION
    • palmate
  • LEAF ARRANGEMENT
    • alternate
  • ROOT TYPE
    • fibrous
  • FLOWER COLOR
    • yellow
      Figure 14, Figure 15
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Buttercup Leaf Drawing

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Find more information at the following NC State Extension websites:

Publication date: Nov. 16, 2017

Recommendations for the use of agricultural chemicals are included in this publication as a convenience to the reader. The use of brand names and any mention or listing of commercial products or services in this publication does not imply endorsement by NC State University or N.C. A&T State University nor discrimination against similar products or services not mentioned. Individuals who use agricultural chemicals are responsible for ensuring that the intended use complies with current regulations and conforms to the product label. Be sure to obtain current information about usage regulations and examine a current product label before applying any chemical. For assistance, contact your local N.C. Cooperative Extension county center.

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This publication printed on: April 25, 2021

Buttercup (Ranunculus species): One of the many yellow flowering weeds that we fight in pastures and hay meadows. Buttercup is a winter annual that thrives in weak or thin pastures. There are several species of this winter annual. They differ mainly in leaf shape and growth, but all produce characteristic bright yellow blossoms. March to early April is the best time to kill buttercup. The goal is to spray buttercup before bloom.

Buttercup growing in a ryegrass pasture in East Texas.

Fertilizing and liming to soil test recommendations and efficient utilization of pastures or hay fields are the primary ways to decrease weed pressure.

Select Herbicide Options:

Weedmaster

2, 4-D

GrazonNext

Grazon P+D

Leaf

Milestone

Cimarron Max (for bermudagrass pastures, will destroy bahiagrass)

Pastora (for bermudagrass pastures, will destroy bahiagrass)

REMEMBER: THE LABEL IS THE LAW! Always read the pesticide label before using.

Vanessa Corriher-Olson

Forage Extension Specialist

Soil & Crop Sciences

Overton, TX

Meadow Buttercup Leaf

Texas A&M AgriLife Extension Service

Buttercup Leaf Identification

Texas A&M University System