D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp

Smilax rotundifolia L.
Common Greenbrier

Life   Plantae   Monocotyledoneae   Smilacaceae   Smilax

Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia

Click on map for details about points.

80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2
Set display option above.
Click on images to enlarge.
Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia
Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia

Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia
Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia

Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia
Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia

Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia
Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia

Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia
Smilax rotundifolia
© Copyright Bobby Hattaway 2011 · 5
Smilax rotundifolia

Smilax rotundifolia, Roundleaf Greenbrier
© John Pickering, 2004-2017 · 4
Smilax rotundifolia, Roundleaf Greenbrier
Smilax rotundifolia
© Les Mehrhoff, 2008-2010 · 4
Smilax rotundifolia

Smilax rotundifolia, whole tree or vine - general
© Copyright Steve Baskauf, 2002-2011 · 4
Smilax rotundifolia, whole tree or vine - general
Smilax rotundifolia, leaf - showing orientation on twig
© Copyright Steve Baskauf, 2002-2011 · 4
Smilax rotundifolia, leaf - showing orientation on twig

Associates · map
FamilyScientific name @ source (records)
Agaricaceae  Phoma smilacina @ BPI (3)
Amphisphaeriaceae  Discosia maculicola @ BPI (1)

Pestalotia clavata @ BPI (2)
Aphididae  Neoprociphilus aceris @ NCSU (1); AMNH_PBI (17)
Botryosphaeriaceae  Diplodia smilacina @ BPI (1)

Dothiorella smilacina @ BPI (3)

Macrophoma smilacina @ BPI (5)

Phyllosticta smilacina @ BPI (4)

Phyllosticta smilacis @ BPI (26)

Phyllosticta @ BPI (2)

Sphaeropsis smilacis @ BPI (4)
Davidiellaceae  Cladosporium smilacis @ BPI (3)

Cladosporium @ BPI (1)
Dermateaceae  Discohainesia oenotherae @ BPI (2)

Marssonina obclavata @ BPI (1)
Diaspididae  Pinnaspis aspidistrae @ AMNH_PBI (1)
Diatrypaceae  Eutypella sepulta @ BPI (1)
Hysteriaceae  Gloniopsis smilacis @ BPI (1)

Hysterographium smilacis @ BPI (1)
Membracidae  Stictocephala brevitylus @ NCSU (1)
Microthyriaceae  Microthyrium smilacis @ BPI (2)

Muyocopron smilacis @ BPI (2)
Mycosphaerellaceae  Cercospora mississippiensis @ BPI (2)

Cercospora petersii @ BPI (1)

Cercospora smilacina @ BPI (6)

Cercospora smilacis @ BPI (3)

Cercospora @ BPI (1)

Mycosphaerella smilacicola @ BPI (4)
Phaeosphaeriaceae  Stagonospora smilacis @ BPI (1)
Piesmatidae  Mcateella kwoki @ AMNH_PBI (1)
Pucciniaceae  Puccinia arundinariae @ BPI (1)

Puccinia macrospora @ BPI (12)

Puccinia smilacis @ BPI (60)
Turritellidae  Vermicularia albomaculata @ BPI (1)
Uropyxidaceae  Aecidium smilacis @ BPI (1)
_  Ascochyta smilacis @ BPI (2)

Hypodermopsis smilacis @ BPI (1)

go to Discover Life's Facebook group

Following modified from Virginia Tech Dendrology
   Top | See original

&pull 20q v5.145 20180528: Error 500 Can't connect to www.cnr.vt.edu:80 http://www.cnr.vt.edu/dendro/dendrology/syllabus/srotundifolia.htm

Following modified from Delaware Wildflowers
   Top | See original

Delaware Wildflowers  •  Scientific names

Smilax rotundifolia L. Round-leaf Greenbrier
Smilacaceae — Greenbriar family
Smilax rotundifolia
Middle Run Valley Natural Area
May 2003 Smilax rotundifolia
Cape Henlopen State Park
April 2011 Smilax rotundifolia
White Clay Creek State Park -- Judge Morris Estate
August 2014

More information on this plant, from other sources.

Copyright David G. Smith

Delaware Wildflowers main page

Following modified from Plants Database, United States Department of Agriculture
   Top | See original

http://plants.usda.gov/java/profile?symbol=SMRO ---> https://plants.usda.gov/java/profile?symbol=SMRO
https://plants.usda.gov/java/profile?symbol=SMRO ---> http://plants.usda.gov/core/profile?symbol=SMRO
http://plants.usda.gov/core/profile?symbol=SMRO ---> https://plants.usda.gov/core/profile?symbol=SMRO
Link: Skip repetitive navigation links
USDA and NRCS Identifier NRCS Logo
USDA.gov Web Site PLANTS photo banner
PLANTS Home  about PLANTS  PLANTS Team  Partners of PLANTS  What  National Plant Data Team Web Site  Help using PLANTS  Contact PLANTS
 Search the PLANTS Web site
 Name Search

 State Search
 Advanced Search
 Search Help
 Alternative Crops
 Cover Crops
 Culturally Significant
 Distribution Update
 Fact Sheets & Plant Guides
 Introduced, Invasive, and Noxious Plants
 Threatened & Endangered
 Wetland Indicator Status
PLANTS Image Gallery
 50,000+ Plant Images
Download PLANTS data
 Complete PLANTS Checklist
 State PLANTS Checklist
 Advanced Search Download
 Symbols for Unknown Plants
 NRCS State GSAT Lists
 NRCS State Plants Lists
Related tools
 Crop Nutrient Tool
 Ecological Site Information System
 PLANTS Identification Keys
 Plant Materials Web Site
 Plant Materials Publications
 USDA Plant Hardiness Map
You are here: Home / Plant Profile

Smilax rotundifolia L.
roundleaf greenbrier

Image of Smilax rotundifolia

General Information
Symbol: SMRO
Group: Monocot
Family: Smilacaceae
Duration: Perennial
Growth Habit : Shrub
Native Status : CAN   N
L48   N
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Smilax thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA SCS. 1991. Southern wetland flora: Field office guide to plant species . South National Technical Center, Fort Worth. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory . United States, MD, Potomac. Usage Requirements .

©Ted Bodner. James H. Miller and Karl V. Miller. 2005. Forest plants of the southeast and their wildlife uses. University of Georgia Press., Athens. Provided by University of Georgia Press . Scanned by Forestry Images . Usage Requirements .

©Nancy Staunton. Provided by Smithsonian Institution, Department of Botany . United States, VA, Woodbridge, Occoquan National Wildlife Refuge. Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 528. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team . Usage Requirements .



Symbol Scientific Name
SMROC Smilax rotundifolia L. var. crenulata Small & A. Heller
SMROQ Smilax rotundifolia L. var. quadrangularis (Muhl. ex Willd.) Alph. Wood


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Liliidae
Order Liliales
Family Smilacaceae – Catbrier family
Genus Smilax L. – greenbrier
Species Smilax rotundifolia L. – roundleaf greenbrier

Subordinate Taxa

This plant has no children

Legal Status

U.S. Weed Information
Smilax rotundifolia bullbriar common catbriar common greenbriar horsebriar roundleaf greenbriar This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
N'EAST Uva, R.H., J.C. Neal,and J.M. DiTomaso. 1997. Weeds of the Northeast . Cornell University Press. Ithaca, New York.

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain FAC
Eastern Mountains and Piedmont FAC
Great Plains FAC
Midwest FAC
Northcentral & Northeast FAC

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (SMRO)
Flora of North America (SMRO)
Integrated Taxonomic Information System (SMRO)
Integrated Taxonomic Information System (SMROC)
Integrated Taxonomic Information System (SMROQ)
Lady Bird Johnson Wildflower Center Native Plant Information Network (SMRO)
Native American Ethnobotany (University of Michigan - Dearborn) (SMRO)
USDA Forest Service Fire Effects Information System (SMRO)
USF Atlas of Florida Vascular Plants (SMRO)
University of Tennessee Herbarium (Distribution) (SMRO)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Miller Low Low Low


Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses . Southern Weed Science Society.

Description of Values

Value Class Food Cover
High Average 25-50% of diet Regular source of cover
Low 5-10% of diet Infrequently used as cover
Minor 2-5% of diet Sparsely used as cover
Moderate Average 10-25% of diet Occasional source of cover

 PLANTS Home | USDA.gov | NRCS | Site Map | Policies and Links
Accessibility Statement | Privacy Policy | Non-Discrimination Statement

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
All Floras       Advanced Search
FNA Vol. 26 Page 470, 475, 476 , 477 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 26 | Smilacaceae | Smilax

17. Smilax rotundifolia Linnaeus, Sp. Pl. 2: 1030. 1753.

Common greenbrier or catbrier, bullbrier, horsebrier

Smilax caduca Linnaeus; S. quadrangularis Muhlenberg ex Willdenow; S. rotundifolia var. crenulata Small & A. Heller; S. rotundifolia var. quadrangularis (Muhlenberg ex Willdenow) Alph. Wood

Vines; rhizomes linear. Stems perennial, climbing, branching, terete to quadrangular, 5—6+ m × 6 mm, woody, glabrous; prickles green with dark tips, stout, to 12 mm. Leaves deciduous to evergreen, ± evenly disposed; petiole 0.5—1.5 cm; tendrils numerous; blade variable, bright green, drying to pale to brownish green, usually ovate to broadly ovate, with 3 (or 5) ± prominent veins, 4—17 × 4—16 cm, lustrous, not glaucous, glabrous abaxially, base cordate to rounded with acute insertion at petiole, margins entire, apex abruptly pointed. Umbels numerous, axillary to leaves, 5—12(—20)-flowered, open to dense, hemispherical to spherical; peduncle to 1.5 cm, longer or shorter than petiole of subtending leaf. Flowers: perianth pale yellowish green to bronze; tepals 3—4 mm; anthers shorter than to ± equaling filaments; ovule 1 per locule; pedicel 0.2—1.5 cm. Berries blue-black to black, globose, 5—8 mm, glaucous. 2n = 32.

Flowering Apr--Jun. Dry to moist, sometimes riparian woods, borders, hedgerows, thickets; 0--200 m; N.S., Ont.; Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Kans., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Va., W.Va.

Normally, the peduncle of Smilax rotundifolia is about the same length as the petiole of the subtending leaf. In exceptional cases, the peduncle may be considerably longer, thereby making this widely distributed species difficult to distinguish from S. bona-nox and S. tamnoides. It lacks the marginal cartilaginous band found on the leaves of the former species and the hispid prickles of the stem of the latter. Specimens of S. tamnoides lacking prickles may be distinguished by their more strongly ridged stems.

Updated: 2018-10-22 01:47:55 gmt
Discover Life | Top
© Designed by The Polistes Corporation