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Eastern White Pine,
Pinus strobus
Mature seed cones cylindrical, elongated; cone scales without prickles, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).
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Longleaf Pine,
Pinus palustris
Cones 15-25cm, with short stout prickles, per Woody Plants of the Southeastern US: A Winter Guide (Lance, 2004).
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Loblolly Pine,
Pinus taeda
Mature seed cones ovoid to conical, dull brown, armed w very sharp prickles, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).
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Pitch Pine,
Pinus rigida
Cones with a wide flat base when open; prickles sharp, downcurved, per Woody Plants of the Southeastern US: A Winter Guide (Lance, 2004).
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Shortleaf Pine,
Pinus echinata
Mature seed cones almost stalkless; the prickles often deciduous, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).
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Spruce Pine,
Pinus glabra
Mature seed cones conical-elliptical, scales with small deciduous prickles, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).
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Spruce Pine,
Pinus glabra
Cone scales have minute prickles and a faint horizontal ridge, per Trees of the Southeastern United States (Duncan & Duncan, 1988).
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Virginia Pine,
Pinus virginiana
Seed cones maturing in 2 yrs, persisting to 5 yrs, w slender, stiff prickles, per Flora of North America.
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Saw Palmetto,
Serenoa repens
Stem horizontal, atop or just below soil surface. Petioles often w prickles, per Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005).
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Common Carrionflower,
Smilax herbacea
Stem herbaceous, lacking prickles. Plant vine-like, climbing or sprawling, per Weakley's Flora.
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Midwestern Carrionflower,
Smilax lasioneura
Stem herbaceous, lacking prickles. Plant vine-like, climbing or sprawling, per Weakley's Flora.
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Biltmore Carrionflower,
Smilax biltmoreana
Stem herbaceous, lacking prickles, per Weakley's Flora (2022).
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Huger's Carrionflower,
Smilax hugeri
Plants erect [not vine-like, climbing or sprawling], lacking prickles, per Weakley's Flora.
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Common Greenbrier,
Smilax rotundifolia
Stem woody, usually with prickles. Plant climbing, ascending or trailing, per Weakley's Flora.
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Fringed Greenbrier,
Smilax bona-nox var. bona-nox
Stems (especially the lower) and prickles brownish stellate-scurfy, per Weakley's Flora.
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Bristly Greenbrier,
Smilax hispida var. hispida
Prickles are round, pliant and bristlelike, per Native Shrubs and Woody Vines of the Southeast (Foote & Jones, 1989).
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Bristly Greenbrier,
Smilax hispida var. hispida
Prickles of the stem abundant, thin and needle-like, shiny brown or black, per Weakley's Flora (2018).
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Bamboo-vine,
Smilax laurifolia
Prickles of the stem broad-based and awl-like or catclaw-like, green brown or black, per Weakley's Flora (2012).
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Jackson-brier,
Smilax smallii
Upper stem greenish with sparse 3-4mm prickles, per Wildflowers of the Sandhills Region (Sorrie, 2011).
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Dwarf Smilax,
Smilax pumila
Stem woody, lacking prickles. Plant rarely greater than 0.5m tall, per Weakley's Flora.
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Japanese Hops,
Humulus scandens
Stems are covered with downward pointing prickles, per Invasive Exotic Plants of North Carolina (Smith, 2008).
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Arrowleaf Tearthumb,
Persicaria sagittata
Sharp backward-turned prickles on stems & midveins of leaf undersides, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).
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Asiatic Tearthumb,
Persicaria perfoliata
Stem, petioles, lower surface of major leaf veins w abundant recurved prickles, per Weakley's Flora.
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Wineberry,
Rubus phoenicolasius
Twigs and stems bristle with red, glandular hairs, with some prickles, per Woody Plants of the Blue Ridge (Lance).
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Black Raspberry,
Rubus occidentalis
Pedicels with stout curved prickles, per Weakley's Flora.
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European Blackberry,
Rubus bifrons
Branches and pedicels of floricanes armed w strong flattened prickles, per Weakley's Flora.
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European Blackberry,
Rubus bifrons
Prickles nearly straight, stems glabrescent, leaves grayish-tomentose beneath, per Weakley's Flora.
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Chesapeake Blackberry,
Rubus pascuus
Inflorescence cymose-paniculate; floricane branches & pedicels armed w strong flattened prickles, per Weakley's Flora (2022).
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Chesapeake Blackberry,
Rubus pascuus
Prickles recurved, per Weakley's Flora (2022).
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Allegheny Blackberry,
Rubus allegheniensis var. allegheniensis
Prickles nearly straight, per Woody Plants of the Southeastern US: A Winter Guide (Lance, 2004).
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Common Dewberry,
Rubus flagellaris
Stems armed with stout-based and usually recurved prickles (bristles lacking), per Weakley's Flora.
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Common Dewberry,
Rubus flagellaris
Primocanes with 3-5 prickles per cm of length, per Weakley's Flora (2023).
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Southern Dewberry,
Rubus trivialis
Stem bristling with straight red-purplish hairs along w reddish [prickles], per Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005).
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Cherokee Rose,
Rosa laevigata
Stout recurved prickles, per Native Shrubs and Woody Vines of the Southeast (Foote & Jones, 1989).
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Multiflora Rose,
Rosa multiflora
Stems are green and armed with stout curved prickles, per Woody Plants of the Blue Ridge (Lance).
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McCartney Rose,
Rosa bracteata
Twigs hairy, stipitate-glandular, with strong curved prickles, per Woody Plants of the Southeastern US: A Winter Guide (Lance, 2004).
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McCartney Rose,
Rosa bracteata
Leaflets 5-9. Twigs hairy with strong recurved prickles, per Woody Plants of the Southeastern US: A Winter Guide (Lance, 2004).
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Swamp Rose,
Rosa palustris
Prickles stout, curved and hooked, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
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Carolina Rose,
Rosa carolina ssp. carolina
Armed w sharp, mostly straight prickles at right angles to stem & branches, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
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Carolina Rose,
Rosa carolina ssp. carolina
Stems with straight needle-like prickles, per Woody Plants of the Blue Ridge (Lance).
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Littleleaf Sensitive-briar,
Mimosa microphylla
Plant typically with numerous prickles, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
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Northern Toothache Tree,
Zanthoxylum americanum
Twigs reddish-brown or gray; broadbased prickles mostly paired at nodes, per Woody Plants of the Southeastern US: A Winter Guide (Lance, 2004).
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Devil's Walkingstick,
Aralia spinosa
The trunk has strong prickles, unless quite large, per Trees of the Southeastern United States (Duncan & Duncan, 1988).
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Devil's Walkingstick,
Aralia spinosa
Leaf scar nearly encircles twig, often w a row of prickles surrounding it, per Native Trees of the Southeast, An Identification Guide (Kirkman, Brown, & Leopold, 2007).
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Carolina Horsenettle,
Solanum carolinense var. carolinense
Scattered but sharp prickles and leaves with shallow lobes, per Wildflowers of the Southern Mountains (Smith, 1998).
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Wetland Nightshade,
Solanum tampicense
Leaves to 10" long and 3" wide, wavy along margins, with prickles on veins, per www.invasive.org.
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False Baby's Breath,
Galium mollugo
Flowers in a loose forked panicle. The plant erect and without prickles, per Wildflowers of the Southern Mountains (Smith, 1998).
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Prickly Lettuce,
Lactuca serriola
Mostly smooth-stemmed with copious fine prickles on leaf margins and midrib, per Wildflowers of the Southern Mountains (Smith, 1998).
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Canada Thistle,
Cirsium arvense
Involucres are smooth or, at most, have minute prickles on outer bracts, per Wildflowers of the Southern Mountains (Smith, 1998).