Skip to main content
Penn State College of Agricultural Science Logo
Department of Plant Science
  • Undergraduate
    • Degree Options
    • Student Resources
    • Contact Us
  • Graduate
    • Degree Options
    • Funding Opportunities
    • Student Resources
    • Contact Us
  • People
    • People
  • Research
    • Thematic Research Areas
    • Focused Research Areas
    • Publications
  • Extension & Outreach
    • Extension & Outreach
  • Access & Equity
    • Access & Equity
  • About
    • News
    • Events
    • Facilities
    • Alumni and Friends
    • Support the Department
    • Contact Us
You are here:
  1. Home
  2. Extension and Outreach
  3. Plant ID
  4. Broadleaf Weeds
  5. Yarrow

Yarrow

Image courtesy of the slide collection of Jack Harper.

Yarrow

Image courtesy of the slide collection of Jack Harper.

Image courtesy of Larry Kuhns.

Yarrow

Image courtesy of Larry Kuhns.

Image courtesy of Larry Kuhns.

Yarrow

Image courtesy of Larry Kuhns.

Image courtesy of Larry Kuhns.

Yarrow

Image courtesy of Larry Kuhns.

Image courtesy of Larry Kuhns.

Yarrow

Image courtesy of Larry Kuhns.

Image courtesy of Larry Kuhns.

Yarrow

Image courtesy of Larry Kuhns.

Leaves of yarrow. Image courtesy of Larry Kuhns.

Yarrow

Leaves of yarrow. Image courtesy of Larry Kuhns.

Flowers of yarrow. Image courtesy of Larry Kuhns.

Yarrow

Flowers of yarrow. Image courtesy of Larry Kuhns.

Flowers of yarrow. Image courtesy of Larry Kuhns.

Yarrow

Flowers of yarrow. Image courtesy of Larry Kuhns.

Flowers of yarrow. Image courtesy of Larry Kuhns.

Yarrow

Flowers of yarrow. Image courtesy of Larry Kuhns.

Leaves of yarrow. Image courtesy of Larry Kuhns.

Yarrow

Leaves of yarrow. Image courtesy of Larry Kuhns.

Image courtesy of Matthew Naedel.

Yarrow

Image courtesy of Matthew Naedel.

Image courtesy of Matthew Naedel.

Yarrow

Image courtesy of Matthew Naedel.

Previous Next

Plant Identification

  • Plant Identification Overview
  • Broadleaf Weeds
    • Broadleaf Weeds Overview
    • Aster, Whiteheath
    • Brambles
    • Buckwheat, Wild
    • Burcucumber
    • Burdock, Common
    • Buttercup, Tall
    • Butterfly-weed
    • Carrot, Wild
    • Catchfly, Night-flowering
    • Chickweed, Common
    • Chickweed, Mouseear
    • Clover, White
    • Cinquefoil, spp.
    • Chicory
    • Coltsfoot
    • Cornmint
    • Cornspurry
    • Cucumber, Wild
    • Daisy, Ox-eye
    • Dandelion, Common
    • Dock, Broadleaf
    • Dock, Curly
    • Dogbane
    • Dogfennel
    • Evening Primrose, Cutleaf
    • Fern, Eastern Bracken
    • Filaree, Redstem
    • Galinsoga, Hairy
    • Geranium, Wild
    • Goldenrod, Canada
    • Goosefoot, Nettleleaf
    • Ground Cherry, Clammy
    • Groundsel
    • Hawkweed, Yellow
    • Healall
    • Hemlock, Poison
    • Hemp, Sesbania
    • Henbit
    • Horsetail, Field
    • Ivy, Ground
    • Ivy, Poison
    • Jimsonweed
    • Knotgrass, German
    • Knotweed, Prostrate
    • Kochia
    • Ladysthumb
    • Lambsquarter
    • Lettuce, Prickly
    • Medic, Black
    • Mallow
    • Marestail
    • Mayweed
    • Milkweed
    • Morning-glory
    • Mugwort
    • Nightshade, Bitter
    • Oxalis
    • Plantain, Bracted
    • Plantain, Broadleaf
    • Plantain, Buckhorn
    • Passion Flower
    • Pea, Partridge
    • Pear, Prickly
    • Pearlwort, Birdseye
    • Pennycress, Field
    • Peppervine
    • Pigweed, Redroot
    • Pineapple-weed
    • Pokeweed, Common
    • Purslane
    • Ragweed, spp.
    • Redmaids, Fringed
    • Rocket, Yellow
    • Scarlet-pimpernel
    • Shepherds-purse
    • Sicklepod
    • Smartweed, Pennsylvania
    • Snakeroot, White
    • Snow on the Mountain
    • Sorrel, Red
    • Sowthistle, Perennial
    • Spanish-needles
    • Speedwell, Creeping
    • Speedwell, Ivyleaf
    • Speedwell, Thymeleaf
    • Sprangletop, Red
    • Spurge, Leafy
    • Spurge, Prostrate
    • Spurge, Spotted
    • Starbur, Bristly
    • St. Johnswort
    • Sumac, Poison
    • Swinecress
    • Thistle, Bull
    • Thistle, Canada
    • Trefoil, Birdsfoot
    • Trumpet-creeper
    • Velvetleaf
    • Verbena, Bigbract
    • Verbena, Sandpaper
    • Yarrow
    • Vetch, spp.
    • Violet
    • Watermelon, Wild
    • Whitlowgrass, Early
    • Witchweed, Asiatic
  • Grasses and Sedges
    • Grasses and Sedges Overview
    • Barnyardgrass
    • Barley, Little
    • Bentgrass, Creeping
    • Bluegrass, Annual
    • Bluegrass, Kentucky
    • Bluegrass, Rough
    • Bromegrass, Downy
    • Cane, Wild
    • Crabgrass, Smooth
    • Dallisgrass
    • Dayflower, Asiatic
    • Fescue, Fine spp.
    • Fescue, Tall
    • Foxtail, Green
    • Foxtail, Giant
    • Foxtail, Yellow
    • Goosegrass
    • Johnsongrass
    • Nimblewill
    • Nutsedge, Yellow
    • Onion, Wild
    • Orchardgrass
    • Panicum, Fall
    • Quackgrass
    • Rush, Toad
    • Ryegrass, Perennial
    • Sandbur, Field
    • Signalgrass, spp.
    • Smutgrass
    • Stinkgrass
    • Velvetgrass, Common
    • Witchgrass
Back to Top

Department of Plant Science

  • About
  • Directory
  • Department Telephone 814-865-2571
  • Facebook
  • X (Twitter)
  • Instagram
Penn State College of Agricultural Science Logo

Privacy and Legal Statements — Accessibility — © 2025 The Pennsylvania State University

Penn State College of Agricultural Science Logo

Explore

  • Degrees & Programs
  • Admissions
  • Research
  • Extension
  • About
  • College Directory
  • Contact Us

Information for

  • Students
  • Industry
  • Alumni
  • Faculty & Staff
  • Visitors & Public
Request Info Schedule a Visit Apply
 
Penn State College of Agricultural Science Logo