Ptelea trifoliata - L.
Common Hoptree
Other English Common Names: Hoptree
Other Common Names: common hoptree
Synonym(s): Ptelea pallida Greene
Taxonomic Status: Accepted
Related ITIS Name(s): Ptelea trifoliata L. (TSN 28992)
Unique Identifier: ELEMENT_GLOBAL.2.159313
Element Code: PDRUT0F020
Informal Taxonomy: Plants, Vascular - Flowering Plants - Rue Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Sapindales Rutaceae Ptelea
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Ptelea trifoliata
Taxonomic Comments: As treated by Kartesz (1999), includes four subspecies, of which three include recognized varieties: ssp. angustifolia (vars. angustifolia and persicifolia), ssp. pallida (vars. cognata, confinis, lutescens, and pallida), ssp. polyadenia (no varieties), and ssp. trifoliata (vars. mollis and trifoliata). LEM 23Jul01.
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 10Apr1985
Global Status Last Changed: 10Apr1985
Rounded Global Status: G5 - Secure
Nation: United States
National Status: N5
Nation: Canada
National Status: N3 (11Oct2016)

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Alabama (SNR), Arizona (SNR), Arkansas (SNR), Colorado (S4), Connecticut (SNR), Delaware (SNA), District of Columbia (SNR), Florida (SNR), Georgia (S5), Illinois (SNR), Indiana (SNR), Iowa (S4), Kansas (SNR), Kentucky (S5), Louisiana (SNR), Maine (SNR), Maryland (S3), Massachusetts (SNR), Michigan (SNR), Minnesota (SNA), Mississippi (S3S4), Missouri (SNR), Nebraska (SNR), New Hampshire (SNR), New Jersey (SNR), New Mexico (SNR), New York (S1S2), North Carolina (S3), Ohio (SNR), Oklahoma (SNR), Pennsylvania (S2), Rhode Island (SNA), South Carolina (SNR), Tennessee (SNR), Texas (SNR), Utah (SH), Vermont (SNR), Virginia (S4), West Virginia (S4), Wisconsin (S2)
Canada Ontario (S3), Quebec (SNA)

Other Statuses

Canadian Species at Risk Act (SARA) Schedule 1/Annexe 1 Status: T (12Jan2005)
Committee on the Status of Endangered Wildlife in Canada (COSEWIC): Special Concern (26Nov2015)
Comments on COSEWIC: Reason for designation: In Canada, this small, short-lived tree occurs in southwestern Ontario, colonizing sandy shoreline habitats. A long-term decline in habitat quality and extent is predicted due to the effects of shoreline hardening, and historical sand mining in Lake Erie. One subpopulation depends on continuing management efforts. Improved survey effort has significantly increased the number of mature individuals, which reduces the overall risk to this species.

Status history: Designated Special Concern in April 1984. Status re-examined and designated Threatened in November 2002. Status re-examined and designated Special Concern in November 2015.

The only infraspecific taxon within the P. trifoliata complex occurring in Canada is P. trifoliata ssp. trifoliata var. trifoliata, so the Interpreted COSEWIC status has been applied in the record for that taxon as well.

NatureServe Global Conservation Status Factors

Other NatureServe Conservation Status Information

Distribution
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U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AL, AR, AZ, CO, CT, DC, DEexotic, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MNexotic, MO, MS, NC, NE, NH, NJ, NM, NY, OH, OK, PA, RIexotic, SC, TN, TX, UT, VA, VT, WI, WV
Canada ON, QCexotic

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
MS Clarke (28023), Clay (28025)*, Forrest (28035)*, Jasper (28061), Jones (28067)*, Kemper (28069), Lauderdale (28075), Leake (28079)*, Lee (28081)*, Lowndes (28087)*, Madison (28089), Neshoba (28099), Newton (28101), Noxubee (28103), Oktibbeha (28105), Pontotoc (28115), Scott (28123), Simpson (28127)*, Tishomingo (28141)*, Walthall (28147), Wayne (28153), Wilkinson (28157)*
NJ Bergen (34003), Burlington (34005)*, Hudson (34017), Hunterdon (34019)*, Mercer (34021), Somerset (34035)*
NY Cattaraugus (36009), Chautauqua (36013), Erie (36029)
PA Allegheny (42003), Bucks (42017), Erie (42049), Franklin (42055), Fulton (42057), Perry (42099)
WI Grant (55043), Green (55045), Kenosha (55059)*, Milwaukee (55079), Ozaukee (55089)*, Racine (55101), Rock (55105), Shawano (55115), Trempealeau (55121), Walworth (55127), Washington (55131)*, Waukesha (55133), Wood (55141)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
02 Lower Hudson (02030101)+, Hackensack-Passaic (02030103)+, Raritan (02030105)+*, Middle Delaware-Musconetcong (02040105)+, Crosswicks-Neshaminy (02040201)+, Lower Juniata (02050304)+, Conococheague-Opequon (02070004)+
03 Town (03160102)+, Tibbee (03160104)+, Luxapallila (03160105)+*, Middle Tombigbee-Lubbub (03160106)+*, Noxubee (03160108)+, Sucarnoochee (03160202)+, Chunky-Okatibbee (03170001)+, Upper Chickasawhay (03170002)+, Upper Leaf (03170004)+, Lower Leaf (03170005)+, Upper Pearl (03180001)+, Middle Pearl-Strong (03180002)+*, Bogue Chitto (03180005)+
04 Duck-Pensaukee (04030103)+, Pike-Root (04040002)+, Milwaukee (04040003)+, Chautauqua-Conneaut (04120101)+, Cattaraugus (04120102)+, Buffalo-Eighteenmile (04120103)+, Lake Erie (04120200)+
05 Lower Monongahela (05020005)+
06 Pickwick Lake (06030005)+*, Bear (06030006)+*
07 Trempealeau (07040005)+, Grant-Little Maquoketa (07060003)+, Castle Rock (07070003)+, Upper Rock (07090001)+*, Crawfish (07090002)+, Sugar (07090004)+, Lower Rock (07090005)+*, Upper Fox (07120006)+
08 Lower Mississippi-Natchez (08060100)+*, Lower Big Black (08060202)+, Buffalo (08060206)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History Not yet assessed
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Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
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  • Ambrose, J. and S. Aboud. 1984. Status report on the Hop Tree, Ptelea trifoliata. Committee on the Status of Endangered Wildlife in Canada (COSEWIC), Ottawa, Ontario. 26 pp.

  • Ambrose, J.D. and S.W. Aboud. 1982. Status Report on Ptelea trifoliata (Rutaceae): A Rare Canadian Small Tree Species. Committee on the Status of Endangered Wildlife in Canada, Ottawa. 27 pp.

  • Ambrose, J.D., P.G. Kevan, and R.M. Gadawski. 1985. Hop tree (Ptelea trifoliata) in Canada: population and reproductive biology of a rare species. Canadian Journal of Botany 63(11): 1928-1935.

  • Ambrose, John D. 2002. Update COSEWIC Status Report on Hop Tree, Ptelea trifoliata (interim report submitted August 22, 2001, revised January 4, 2002). Committee on the Status of Endangered Wildlife in Canada (COSEWIC) interim draft, unpublished. 12 pp.

  • Argus, G.W., K.M. Pryer, D.J. White and C.J. Keddy (eds.). 1982-1987. Atlas of the Rare Vascular Plants of Ontario.. Botany Division, National Museum of National Sciences, Ottawa.

  • Bailey, H.E., J.D. Mooken, & V.L. Bailey. 1971. Studies on the geographical distribution of some alkaloids and coumarins in leaf extracts of PTELEA species. Lloydia 34(4):377-382.

  • Bailey, V.L., S.B. Herlin, and H.E. Bailey. 1970. Ptelea trifoliata ssp. trifoliata (Rutaceae) in deciduous forest regions of eastern North America. Brittonia 22: 246-358.

  • COSEWIC 2002. COSEWIC assessment and update status report the common hoptree Ptelea trifoliata in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vi + 14 pp.

  • COSSARO. 2016. Ontario Species at Risk Evaluation Report for Common Hoptree (Ptelea trifoliata). Committee on the Status of Species at Risk in Ontario.  June 2016 (final). 18 pp.

  • Deam, C. C. 1940. Flora of Indiana. Division of Forestry, Dept. of Conservation, Indianapolis, Indiana. 1236 pp.

  • E. Skornia, M. Yang, and W. L. Applequist. 2015. Phenetic Analyses and Revised Classification of the Ptelea trifoliata Complex (Rutaceae). Western North American Naturalist, 75(4):406-428.
     

  • Fox, W.S. and J.H. Soper. 1952. The Distribution of some trees and shrubs of the Carolinian Zone of Southern Ontario. Part 1. Transactions of the Royal Canadian Institute 29(Part 2): 67-84.

  • Kartesz, J. T. 1991. Synonym names from 1991 checklist, as extracted by Larry Morse, TNC, June 1991.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Kartesz, J.T. 1996. Species distribution data at state and province level for vascular plant taxa of the United States, Canada, and Greenland (accepted records), from unpublished data files at the North Carolina Botanical Garden, December, 1996.

  • Leidolf, Andreas. 1994. A floristic survey of rare and endangered plant species of Oktibbeha County, Mississippi. Unpubl. report to MNHP.

  • Little, E.L., Jr. 1979. Checklist of United States trees (native and naturalized). Agriculture Handbook No. 541. U.S. Forest Service, Washington, D.C. 375 pp.

  • MILES, K.J. 1989. LETTER OF 7 SEPTEMBER TO CATHARINE PIEPER-STEVENSON, WATER RESOURCES ADMIN. DIV. OF MD DNR, RE: ACCOKEEK CREEK, PRINCE GEORGES CO.

  • McLeod, K.W., and P.G. Murphy. 1977. Establishment of Ptelea trifoliata on Lake Michigan sand dunes. American Midland Naturalist 97(2): 350-362.

  • McLeod, K.W., and P.G. Murphy. 1977b. Germination ecology of Ptelea trifoliata. American Midland Naturalist 97: 363-372.

  • McLeod, K.W., and P.G. Murphy. 1983. Factors affecting growth of Ptelea trifoliata seedlings. Canadian Journal of Botany 61: 2410-2415.

  • Moye, William S. 2006. Highly Ranked Plants of the South Mountain Region. Unpublished notes sent via email to Misty Franklin in February 2006.

  • Oldham, M.J. 2002. COSSARO Candidate Species at Risk Evaluation Form for Common Hop Tree (Ptelea trifoliata). Committee on the Status of Species at Risk in Ontario (COSSARO), Ontario Ministry of Natural Resources, Peterborough, Ontario. Unpublished report. 8 pp. + 2 appendices.

  • Swink, F., and G. Wilhelm. 1994. Plants of the Chicago Region. Morton Arboretum. Lisle, Illinois.

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