Vascular Plant Flora of Patuxent Research Refuge
Authors:
Bill Harms
Locality: Patuxent Research Refuge (39.060200, -76.780700) Abstract: Established in 1936 by executive order of President Franklin D. Roosevelt, the Patuxent Research Refuge is the nation's only national wildlife refuge established to support wildlife research. It is located between Washington, DC and Baltimore, MD.
CT=Central Tract NT=North Tract ST=South Tract
Nativity to refuge - Native, exotic, and uncertain.
Abundance qualifiers for refuge. Abundant: occurring usually in large numbers or occupying large areas. Common: plentiful throughout. Frequent: widely distributed; occasionally plentiful. Infrequent: occurring only occasionally. Rare: not often found owing to its scarcity. Local: restricted to a particular area.
The checklist uses Weakley 2022 with minor modifications for taxonomic nomenclature.
For additional information about this checklist, please contact: Bill Harms (botanybill@philcobill.com)
For comments about or corrections to individual entries, please leave a comment on the individual species page. Or contact Bill at the above email address
This is a work in progress and as such please use the data with care.
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Families: 148
Genera: 564
Species: 1295
Total Taxa: 1312
Francis M. Uhler s.n. [MO], Steven R. Hill 11856 [MARY], Bill Harms 7961 [USFWS], F. M. Uhler s.n. [USFWS], more...A. C. Martin s.n. [USFWS], Bill Harms 9599 [USFWS], Matt Perry s.n. [USFWS], F. M. Uhler s.n. [USFWS], F. M. Uhler s.n. [USFWS], Matt Perry s.n. [USFWS], ...less
Bill Harms 8198 [MARY], Bill Harms 8734 [MARY], Bill Harms 8130 [MARY], Bill Harms 8230 [MARY], more...Bill Harms 8604 [MARY], Bill Harms 8189 [MARY], Bill Harms 7058 [MARY], Bill Harms 8175 [MARY], Bill Harms 8249 [MARY], Bill Harms 8168 [USFWS], Bill Harms 8180 [USFWS], Bill Harms 8734 [USFWS], Bill Harms 7527 [USFWS], Bill Harms 8249 [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 8219 [USFWS], N. Hotchkiss 5498 [USFWS], Bill Harms 8175 [USFWS], Bill Harms 8189 [USFWS], Matt Perry s.n. [USFWS], Bill Harms 8130 [USFWS], Bill Harms 8604 [USFWS], Bill Harms 7058 [USFWS], Bill Harms 8230 [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 8198 [USFWS], ...less
Bill Harms 7026 [MARY], Bill Harms 8190 [MARY], W. M. Preston,Jr. s.n. [MARY], Bill Harms 7035 [MARY], more...W. M. Preston,Jr. s.n. [MARY], Henry Hebert s.n. [DOV], Bill Harms 8190 [USFWS], Bill Harms 7026 [USFWS], N. Hotchkiss 5472 [USFWS], Bill Harms 8732 [USFWS], Bill Harms 7035 [USFWS], F. M. Uhler s.n. [USFWS], ...less
Bill Harms 8023 [USFWS], F. M. Uhler s.n. [USFWS], N. Hotchkiss 5368 [USFWS], Bill Harms 8123 [USFWS], more...Bill Harms 9350 [USFWS], Bill Harms 8057 [USFWS], F. M. Uhler s.n. [USFWS], N. Hotchkiss 5417 [USFWS], Bill Harms 8144 [USFWS], N. Hotchkiss 5367 [USFWS], Bill Harms 8103.5 [USFWS], ...less
Bill Harms 6417 [MARY], Bill Harms 9540 [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 7299 [USFWS], more...N. Hotchkiss 5151 [USFWS], Ann Coren 49 [USFWS], Bill Harms 6417 [USFWS], Bill Harms 8929 [USFWS], F. M. Uhler s.n. [USFWS], N. Hotchkiss 5151 [USFWS], ...less
Harms, Bill 8239 [NCU], Harms, Bill 8239 [NCU], Bill Harms 8239 [MARY], Elmer G. Worthley s.n. [MARY], more...Bill Harms 8223 [MARY], Bill Harms 8740 [MARY], Bill Harms 8238 [USFWS], N. Hotchkiss 5591 [USFWS], Bill Harms 8240 [USFWS], Bill Harms 8239 [USFWS], Bill Harms 8223 [USFWS], Bill Harms 8740 [USFWS], Bill Harms 8240 [USFWS], ...less
Bill Harms 6672 [MARY], Bill Harms 5994 [USFWS], N. Hotchkiss 6717/7017 [USFWS], Bill Harms 10133 [USFWS], more...Bill Harms 10002 [USFWS], Bill Harms 6761 [USFWS], Matt Perry s.n. [USFWS], N. Hotchkiss 5332 [USFWS], Bill Harms 10033 [USFWS], Bill Harms 7431 [USFWS], ...less
W. D. Longbottom 21319 [NY], Bill Harms 9462 [USFWS], Wayne D. Longbottom 21319 [USFWS], Bill Harms 7970 [USFWS], more...Bill Harms 6672 [USFWS], William H. Stickel s.n. [USFWS], Bill Harms 8327 [USFWS], Bill Harms 8104 [USFWS], Bill Harms 7965 [USFWS], Bill Harms 10132 [USFWS], N. Hotchkiss 6731/7031 [USFWS], ...less
Bill Harms 8760 [MARY], Bill Harms 6835 [MARY], Ernest Clarke 100 [MARY], Bill Harms 8758 [USFWS], more...Bill Harms 8185 [USFWS], Bill Harms 10085 [USFWS], Bill Harms 6835 [USFWS], Bill Harms 8366 [USFWS], N. Hotchkiss 5323 [USFWS], Bill Harms 8760 [USFWS], Bill Harms 8757 [USFWS], Bill Harms 8158 [USFWS], Bill Harms 9688 [USFWS], Bill Harms 6708 [USFWS], Bill Harms 9356 [USFWS], Bill Harms 9093 [USFWS], ...less
Harms, Bill 8513 [NCU], Elmer G. Worthley s.n. [MARY], Bill Harms 8577 [MARY], Bill Harms 8755 [USFWS], more...Bill Harms 7095 [USFWS], Bill Harms 10023 [USFWS], Matt Perry s.n. [USFWS], Bill Harms 8533 [USFWS], R. E. Stewart s.n. [USFWS], Bill Harms 9436 [USFWS], Bill Harms 8577 [USFWS], Bill Harms 6653 [USFWS], Bill Harms 9627.5 [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 8513 [USFWS], ...less
Bill Harms 6701 [MARY], Bill Harms 9363 [MARY], Bill Harms 9364 [USFWS], Bill Harms 7846 [USFWS], more...Matt Perry s.n. [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 9268 [USFWS], G. H. Jensen s.n. [USFWS], Bill Harms 8135 [USFWS], Bill Harms 6701 [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 9363 [USFWS], F. M. Uhler s.n. [USFWS], ...less
Bottomlands, and adjacent areas, Rare, native, CT, NT, ST; Dave Anderson s.n. [USFWS], Bill Harms 7746 [USFWS], Robert Ferraro 1 [USFWS], Bill Harms 9148 [USFWS], more...N. Hotchkiss 5078 [USFWS], ...less
Hederows, clearings, frequent, native, CT, NT, ST; Bill Harms 6261 [MARY], Bill Harms 8264 [MARY], Victor A. Levi 8 [MARY], R. Shelangouski s.n. [DOV], more...F. M. Uhler s.n. [USFWS], F. M. Uhler s.n. [USFWS], N. Hotchkiss 6495 [USFWS], N. Hotchkiss 6494 [USFWS], Bill Harms 7280 [USFWS], Bill Harms 7212 [USFWS], F. M. Uhler s.n. [USFWS], F. M. Uhler s.n. [USFWS], F. J. Hermann 11444 [USFWS], N. Hotchkiss 5258 [USFWS], Bill Harms 7218 [USFWS], ...less
Hederows, clearings, frequent, locally common, native, CT, NT, ST; Bill Harms 8309 [MARY], Bill Harms 7216 [MARY], Bill Harms 7306 [MARY], N. Hotchkiss 6496 [USFWS], more...Bill Harms 9123 [USFWS], Bill Harms 8264 [USFWS], Bill Harms 6176 [USFWS], Bill Harms 7216 [USFWS], Bill Harms 6261 [USFWS], F. M. Uhler s.n. [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 9488 [USFWS], N. Hotchkiss 5074 [USFWS], Bill Harms 7207 [USFWS], Bill Harms 8309 [USFWS], Bill Harms 7306 [USFWS], Matt Perry s.n. [USFWS], Bill Harms 6215 [USFWS], F. M. Uhler s.n. [USFWS], ...less
Victor A. Levi 25 [MARY], Bill Harms 7237 [USFWS], Bill Harms 6399 [USFWS], W. R. Greiner s.n. [USFWS], more...Bill Harms 9915 [USFWS], Bill Harms 9541 [USFWS], Bill Harms 6453 [USFWS], Bill Harms 6292 [USFWS], N. Hotchkiss 5108 [USFWS], Bill Harms 9756 [USFWS], ...less
Bill Harms 6486 [MARY], Bill Harms 6478 [MARY], Bill Harms 6485 [MARY], Bill Harms 7290 [MARY], more...F. M. Uhler s.n. [USFWS], Bill Harms 7816 [USFWS], Bill Harms 6486 [USFWS], Bill Harms 6478 [USFWS], F. C. Schmid s.n. [USFWS], Bill Harms 7290 [USFWS], Bill Harms 6485 [USFWS], ...less
Bill Harms 8937 [MARY], Bill Harms 8886 [MARY], Bill Harms 8886 [USFWS], Bill Harms 6639 [USFWS], more...Bill Harms 9797 [USFWS], William H. Stickel s.n. [USFWS], Bill Harms 9594 [USFWS], Bill Harms 6717 [USFWS], Bill Harms 8879 [USFWS], N. Hotchkiss 6707/7007 [USFWS], Bill Harms 9597 [USFWS], N. Hotchkiss 5787 [USFWS], Bill Harms 8398 [USFWS], ...less
Bill Harms 8957 [MARY], Bill Harms 8884 [MARY], Bill Harms 8877 [MARY], Bill Harms 7822 [MARY], more...Bill Harms 8900 [MARY], Bill Harms 8882 [MARY], Bill Harms 6401 [USFWS], William H. Stickel s.n. [USFWS], Bill Harms 8885 [USFWS], N. Hotchkiss 5264 [USFWS], Bill Harms 6535 [USFWS], Bill Harms 6471 [USFWS], William H. Stickel s.n. [USFWS], N. Hotchkiss 5264 [USFWS], Bill Harms 7830 [USFWS], Bill Harms 6472 [USFWS], ...less
Walker, Samantha 4 [NCU], Bill Harms 8322 [MARY], Bill Harms 9973 [USFWS], Bill Harms 8900.5 [USFWS], more...Bill Harms 8957 [USFWS], Bill Harms 8884 [USFWS], Bill Harms 7392 [USFWS], N. Hotchkiss 5249 [USFWS], Bill Harms 9393 [USFWS], Bill Harms 8939 [USFWS], Bill Harms 8322 [USFWS], Bill Harms 6588 [USFWS], ...less
Harms, Bill 8368 [NCU], Bill Harms 8876 [MARY], Bill Harms 8879 [MARY], William H. Stickel s.n. [USFWS], more...N. Hotchkiss 5312 [USFWS], Bill Harms 8368 [USFWS], William H. Stickel s.n. [USFWS], William H. Stickel s.n. [USFWS], William H. Stickel s.n. [USFWS], Bill Harms 7402 [USFWS], William H. Stickel s.n. [USFWS], ...less
Bill Harms 8874 [MARY], Bill Harms 8329 [USFWS], Bill Harms 6429 [USFWS], Bill Harms 8900 [USFWS], more...Bill Harms 6400 [USFWS], Bill Harms 8877 [USFWS], William H. Stickel s.n. [USFWS], Bill Harms 8874 [USFWS], Bill Harms 9909 [USFWS], Bill Harms 7822 [USFWS], Bill Harms 8995 [USFWS], Bill Harms 6413 [USFWS], Bill Harms 8882 [USFWS], William H. Stickel s.n. [USFWS], Bill Harms 8873 [USFWS], Bill Harms 8871 [USFWS], ...less
Harms, Bill 8514 [NCU], Elmer G. Worthley s.n. [MARY], Bill Harms 7040 [MARY], Bill Harms 6538 [MARY], more...Bill Harms 6646 [MARY], Bill Harms 7040 [USFWS], Bill Harms 6538 [USFWS], Bill Harms 8514 [USFWS], Bill Harms 6646 [USFWS], N. Hotchkiss 5426 [USFWS], ...less
Bill Harms 8272 [MARY], Ernest Clarke 7 [MARY], Bill Harms 7214 [MARY], Victor A. Levi 26 [MARY], more...Bill Harms 7214 [USFWS], Bill Harms 9916 [USFWS], Bill Harms 8949 [USFWS], Bill Harms 8272 [USFWS], N. Hotchkiss 5082 [USFWS], Bill Harms 8856 [USFWS], ...less
Bill Harms 6211 [MARY], Bill Harms 6265 [MARY], Bill Harms 7198 [MARY], Bill Harms 6265 [USFWS], more...Bill Harms 6231 [USFWS], Bill Harms 9115 [USFWS], Bill Harms 7238 [USFWS], Bill Harms 7177 [USFWS], Bill Harms 6255 [USFWS], Bill Harms 6211 [USFWS], Bill Harms 7797 [USFWS], Bill Harms 7198 [USFWS], ...less
Bill Harms 6141 [MARY], Bill Harms 6140 [MARY], Bill Harms 6297 [MARY], Bill Harms 6297 [USFWS], more...Bill Harms 6140 [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 6352 [USFWS], Bill Harms 6141 [USFWS], Bill Harms 6127 [USFWS], N. Hotchkiss 5188 [USFWS], Bill Harms 7741 [USFWS], ...less
Hedgerow, yards, rare, single trees, exotic, CT, NT, ST; Bill Harms 7247 [MARY], Bill Harms 9127 [USFWS], Bill Harms 9764 [USFWS], Bill Harms 7247 [USFWS], more...Bill Harms 9978 [USFWS], Bill Harms 9746 [USFWS], Bill Harms 9101 [USFWS], Bill Harms 6303 [USFWS], ...less
Woods, abundant, native, CT, NT, ST; Bill Harms 8850 [MARY], Bill Harms 9592 [USFWS], Bill Harms 8850 [USFWS], Bill Harms 9304 [USFWS], more...N. Hotchkiss 5655 [USFWS], ...less
Hedgerow, open fields, common, locally abundant, exotic, CT, NT, ST, eridication effort underway; Bill Harms 6669 [MARY], Bill Harms 9774 [USFWS], N. Hotchkiss 6703/7003 [USFWS], Bill Harms 6669 [USFWS]
Bill Harms 6447 [MARY], Chandler S. Robbins 47 [MARY], J. W. Brainerd s.n. [USFWS], Bill Harms 9189.5 [USFWS], more...N. Hotchkiss 5691 [USFWS], Bill Harms 9168 [USFWS], Bill Harms 7255 [USFWS], Bill Harms 6447 [USFWS], J. W. Brainerd 458 [USFWS], Chris Winton 5 [USFWS], Bill Harms 8881 [USFWS], Bill Harms 7254 [USFWS], ...less
Ernest Clarke 84 [MARY], Bill Harms 6594 [MARY], Anna Belle Owens s.n. [MARY], Bill Harms 6161 [MARY], more...Bill Harms 6161 [USFWS], F. M. Uhler s.n. [USFWS], N. Hotchkiss 5328 [USFWS], N. Hotchkiss 6328 [USFWS], Bill Harms 6594 [USFWS], Matt Perry s.n. [USFWS], N. Hotchkiss 6030 [USFWS], F. M. Uhler s.n. [USFWS], ...less
Bill Harms 6104 [MARY], Bill Harms 6104 [USFWS], N. Hotchkiss 5684 [USFWS], Bill Harms 6287 [USFWS], more...Bill Harms 6268 [USFWS], Bill Harms 6137 [USFWS], Bill Harms 6095 [USFWS], Bill Harms 7390 [USFWS], Bill Harms 6275 [USFWS], Bill Harms 6167 [USFWS], ...less
Common; hedgerows, open edge habitats, CT NT ST, native; Bill Harms 7223 [USFWS], F. M. Uhler s.n. [USFWS], Bill Harms 9911 [USFWS], Bill Harms 8751 [USFWS], more...Bill Harms 7578 [USFWS], Bill Harms 6318 [USFWS], N. Hotchkiss 5112 [USFWS], Bill Harms 9347 [USFWS], Bill Harms 7756 [USFWS], ...less
Bill Harms 8280.5 [MARY], Lydia F. Ewing 1037 [MARY], Bill Harms 7782 [MARY], Bill Harms 8821 [MARY], more...Ernest Clarke 3 [MARY], Harold F. Ford 67 [MARY], Bill Harms 9917 [USFWS], Bill Harms 7782 [USFWS], Bill Harms 8842 [USFWS], Bill Harms 7235 [USFWS], Bill Harms 8280.5 [USFWS], Bill Harms 6277 [USFWS], Bill Harms 7808 [USFWS], N. Hotchkiss 5073 [USFWS], Bill Harms 7787 [USFWS], Bill Harms 9766 [USFWS], Bill Harms 7770 [USFWS], Bill Harms 8821 [USFWS], Bill Harms 6409 [USFWS], Bill Harms 8268 [USFWS], R. C. Erickson s.n. [USFWS], Bill Harms 7804 [USFWS], ...less
Bill Harms 6243 [MARY], Ernest Clarke 2 [MARY], Bill Harms 6251 [MARY], Bill Harms 6243 [USFWS], more...N. Hotchkiss 6492 [USFWS], Bill Harms 9139 [USFWS], Bill Harms 6326 [USFWS], Bill Harms 6249 [USFWS], Matt Perry s.n. [USFWS], Bill Harms 9493 [USFWS], Bill Harms 8855 [USFWS], Bill Harms 6251 [USFWS], ...less
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