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. Thymeleaf Speedwell

Thymeleaf Speedwell

Image courtesy of the slide collection of Jack Harper.

Thymeleaf Speedwell

Image courtesy of the slide collection of Jack Harper.

Image courtesy of the slide collection of Jack Harper.

Thymeleaf Speedwell

Image courtesy of the slide collection of Jack Harper.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Leaves of thymeleaf speedwell. Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Leaves of thymeleaf speedwell. Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of Jeffrey Borger.

Thymeleaf Speedwell

Image courtesy of Jeffrey Borger.

Image courtesy of the slide collection of Jack Harper.

Thymeleaf Speedwell

Image courtesy of the slide collection of Jack Harper.

Underside leaf venation. Image courtesy of Matthew Naedel.

Thymeleaf Speedwell

Underside leaf venation. Image courtesy of Matthew Naedel.

Image courtesy of Matthew Naedel.

Thymeleaf Speedwell

Image courtesy of Matthew Naedel.

Thymeleaf Speedwell

Thymeleaf Speedwell

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