Displaying 1 - 75 out of 143 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Amelanchier laevis Wiegand | M. C. Wiegand s.n. | 06 Mar 1908; 24 Jun 1911 | United States of America | Massachusetts | Norfolk Co. Aqueduct Bridge. | isotype |
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| Cirsium horridulum Michx. var. horridulum | M. C. Wiegand s.n. | July 11-08 | United States of America | Massachusetts | North Truro. | — |
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| Eurybia schreberi (Nees) Nees | M. C. Wiegand s.n. | 18 Aug 1908 | United States of America | New York | Cortland Co. Haight's Glen | — |
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| Corallorhiza maculata Raf. | M. C. Wiegand s.n. | 08 Sep 1908 | United States of America | Massachusetts | E. side of aqueduct E.… | — |
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| Platismatia glauca (L.) W.L.Culb. & C.F.Culb. | M. C. Wiegand | 09 Aug 1909 | United States of America | Maine | Washington Co. West Pembroke | — | ||||
| Lobaria pulmonaria (L.) Hoffm. | M. C. Wiegand | 11 Aug 1909 | United States of America | Maine | Washington Co. West Pembroke. | — |
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| Peltigera leucophlebia (Nyl.) Gyeln. | M. C. Wiegand s.n. | 11 Aug 1909 | United States of America | Maine | West Pembroke. | — | ||||
| Crepis capillaris (L.) Wallr. | M. C. Wiegand s.n. | 09 Oct 1912 | United States of America | Massachusetts | Norfolk Co. Weed in Bot… | — |
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| Carex flava L. | M. C. Wiegand 1921 | 07 Jun 1914 | United States of America | New York | Onondaga Co. Shore of Green… | — |
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| Rhus integrifolia (Nutt.) Benth. & Hook.f. ex W.H.Brewer & S.Watson | M. C. Wiegand 3775 | 22 Mar 1922 | United States of America | California | San Diego Co. Mount Soledad | — |
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| Pellaea andromedifolia (Kaulf.) Fée | M. C. Wiegand 2954a | 22 Mar 1922 | United States of America | California | San Diego Co. Ravine, Mount… | — |
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| Euphorbia melanadenia Torr. | M. C. Wiegand 3742 | 31 Mar 1922 | United States of America | California | Imperial Co. 1 mile east… | — |
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| Astragalus didymocarpus var. obispensis (Rydb.) Barneby | M. C. Wiegand 3606 | 01 Apr 1922 | United States of America | California | Imperial Co. 4 miles east… | — |
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| Oenothera deltoides Torr. & Frém. var. deltoides | M. C. Wiegand 3905 | 08 Apr 1922 | United States of America | California | San Bernardino Co. Mohave Desert,… | — |
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| Nemacladus orientalis (McVaugh) Morin | M. C. Wiegand 4350 | 09 Apr 1922 | United States of America | California | San Bernardino Co. Lava rocks,… | — |
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| Dalea mollissima (Rydb.) Munz | M. C. Wiegand 3592 | 12 Apr 1922 | United States of America | California | San Bernardino Co. Mohave Desert,… | — |
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| Nemacladus rubescens Greene | M. C. Wiegand 4353 | 14 Apr 1922 | United States of America | Arizona | Yuma Co. 15 miles south… | — |
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| Eriastrum diffusum subsp. jonesii H.Mason | M. C. Wiegand 4036 | 15 Apr 1922 | United States of America | Arizona | Yuma Co. 4 miles east… | — |
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| Chaenactis carphoclinia A.Gray | M. C. Wiegand 4508 | 15 Apr 1922 | United States of America | Arizona | Yuma Co. Salome road, 4… | — |
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| Chaenactis stevioides Hook. & Arn. | M. C. Wiegand 4517 | 15 Apr 1922 | United States of America | Arizona | Yuma Co. Salome road, 4… | — |
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| Eriophyllum lanatum (Pursh) J.Forbes | M. C. Wiegand 4503 | 15 Apr 1922 | United States of America | Arizona | Yuma Co. 3 miles east… | — |
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| Malacothrix glabrata (A.Gray ex D.C. Eaton) A.Gray | M. C. Wiegand 4571 | 15 Apr 1922 | United States of America | Arizona | Yuma Co. 4 miles east… | — |
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| Filago arizonica A.Gray | M. C. Wiegand 4420 | 16 Apr 1922 | United States of America | Arizona | Maricopa Co. 4 miles northwest… | — |
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| Eriastrum diffusum subsp. jonesii H.Mason | M. C. Wiegand 4037 | 17 Apr 1922 | United States of America | Arizona | 23 miles north of Florence,… | — |
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| Astragalus nuttallianus var. imperfectus (Rydb.) Barneby | M. C. Wiegand 3615 | 18 Apr 1922 | United States of America | Arizona | 19 miles northwest of Florence,… | — |
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| Eucrypta micrantha (Torr.) A.Heller | M. C. Wiegand 4121 | 20 Apr 1922 | United States of America | Arizona | Pinal Co. Phoenix road, 40… | — |
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| Thysanocarpus curvipes Hook. subsp. curvipes | M. C. Wiegand 3313 | 22 Apr 1922 | United States of America | Arizona | Pima Co. Sabino Canyon | — |
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| Lesquerella purpurea subsp. purpurea | M. C. Wiegand 3327 | 22 Apr 1922 | United States of America | Arizona | Pima Co. Sabino Canyon | — |
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| Phlox tenuifolia E.E.Nelson | M. C. Wiegand 4053 | 22 Apr 1922 | United States of America | Arizona | Pima Co. Sabino Canyon | — |
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| Dalea versicolor var. sessilis (A.Gray) Barneby | M. C. Wiegand 3597 | 24 Apr 1922 | United States of America | Arizona | Pinal Co. Trail, Old Baldy,… | — |
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| Muhlenbergia virescens (Kunth) Trin. | M. C. Wiegand 3015 | 24 Apr 1922 | United States of America | Arizona | Pima Co. Santa Rita Mtns.… | — |
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| Poa fendleriana (Steud.) Vasey | M. C. Wiegand 2989 | 24 Apr 1922 | United States of America | Arizona | Pima Co. Old Baldy, Santa… | — |
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| Erigeron divergens var. cinereus A.Gray | M. C. Wiegand 4407 | 25 Apr 1922 | United States of America | Arizona | Pima Co. Santa Rita Mountains,… | — |
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| Mimulus rubellus A.Gray | M. C. Wiegand 4258 | 25 Apr 1922 | United States of America | Arizona | Pima Co. Recreation area, Santa… | — |
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| Silene antirrhina L. | M. C. Wiegand 3201 | 25 Apr 1922 | United States of America | Arizona | Pima Co. Recreation area, Santa… | — |
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| Caucalis microcarpa Hook. & Arn. | M. C. Wiegand 3930 | 25 Apr 1922 | United States of America | Arizona | Pima Co. Recreation area, Santa… | — |
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| Evolvulus arizonicus A.Gray | M. C. Wiegand 3981 | 25 Apr 1922 | United States of America | Arizona | Pima Co. Recreation area, Santa… | — |
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| Poa bigelovii Vasey | M. C. Wiegand 2993 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. Peppersauce Canyon, Mt.… | — |
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| Rhus aromatica var. trilobata (Nutt.) A.Gray | M. C. Wiegand 3769 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. 2 Mi SE… | — |
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| Lycium pallidum Miers var. pallidum | M. C. Wiegand 4215 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. 25 miles from… | — |
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| Prunus eximia Small | M. C. Wiegand 3493 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. Peppersauce Canyon, between… | — |
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| Machaeranthera gracilis (Nutt.) Shinners | M. C. Wiegand 4364 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. 6 miles north… | — |
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| Arabis fendleri (S.Watson) Greene | M. C. Wiegand 3386 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. Mount Lemmon road,… | — |
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| Packera neomexicana (Greene) W.A.Weber & Á.Löve var. neomexicana | M. C. Wiegand 4549 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. 3 miles southeast… | — |
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| Ipomopsis laxiflora (J.M.Coult.) V.E.Grant | M. C. Wiegand 3995 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. Tucson road, 9… | — |
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| Geranium carolinianum L. | M. C. Wiegand 3717 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. Peppersauce Canyon, Mountain… | — |
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| Ceanothus cuneatus (Hook.) Nutt. | M. C. Wiegand 3788 | 27 Apr 1922 | United States of America | Arizona | Pinal Co. 3 miles southeast… | — |
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| Keckiella antirrhinoides var. microphylla (A.Gray) N.H.Holmgren | M. C. Wiegand 4281 | 28 Apr 1922 | United States of America | Arizona | Gila Co. 25 miles south… | — |
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| Camissonia breviflora (Torr. & A.Gray) P.H.Raven | M. C. Wiegand 3880 | 28 Apr 1922 | United States of America | Arizona | Pima Co. Oracle - Globe… | — |
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| Gilia stellata A.Heller | M. C. Wiegand 4004 | 28 Apr 1922 | United States of America | Arizona | Gila Co. 5 miles east… | — |
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| Eschscholzia californica var. mexicana (Greene) N.H.Holmgren & P.K.Holmgren | M. C. Wiegand 3283 | 28 Apr 1922 | United States of America | Arizona | Gila Co. 10 miles northeast… | — |
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| Lotus plebeius (Brandegee) Barneby | M. C. Wiegand 3584 | 28 Apr 1922 | United States of America | Arizona | Pinal Co. 7 miles southeast… | — |
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| Lotus salsuginosus var. brevivexillus Ottley | M. C. Wiegand 3575 | 28 Apr 1922 | United States of America | Arizona | Gila Co. 5 miles east… | — |
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| Malacothrix fendleri A.Gray | M. C. Wiegand 4567 | 28 Apr 1922 | United States of America | Arizona | Pinal Co. 2 miles south… | — |
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| Mirabilis coccinea (Torr.) Benth. & Hook.f. | M. C. Wiegand 3178 | 28 Apr 1922 | United States of America | Arizona | Pinal Co. Globe- Oracle road,… | — |
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| Mahonia fremontii (Torr.) Fedde | M. C. Wiegand 3271 | 29 Apr 1922 | United States of America | Arizona | Gila Co. 20 miles south… | — |
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| Solanum umbelliferum Eschsch. | M. C. Wiegand 4299 | 29 Apr 1922 | United States of America | Arizona | Gila Co. Oracle road, 12… | — |
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| Rafinesquia neomexicana A.Gray | M. C. Wiegand 4564 | 30 Apr 1922 | United States of America | Arizona | Gila Co. Roosevelt Lake | — |
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| Oenothera flava (A.Nelson) Garrett | M. C. Wiegand 3902 | 02 May 1922 | United States of America | Arizona | Yavapai Co. Black Canyon road,… | — |
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| Ambrosia deltoidea (Torr.) W.W.Payne | M. C. Wiegand 4447 | 02 May 1922 | United States of America | Arizona | Maricopa Co. Black Canyon road,… | — |
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| Hymenoclea salsola var. pentalepis (Rydb.) L.D.Benson | M. C. Wiegand 4443 | 02 May 1922 | United States of America | Arizona | Maricopa Co. Black Canyon road,… | — |
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| Gilia flavocincta A.Nelson | M. C. Wiegand 3998 | 03 May 1922 | United States of America | Arizona | Yavapai Co. Black Canyon road… | — |
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| Verbena ciliata var. pubera (Greene) L.M.Perry | M. C. Wiegand 4187 | 03 May 1922 | United States of America | Arizona | Yavapai Co. 13 miles north… | — |
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| Fallugia paradoxa (D.Don) Endl. ex Torr. | M. C. Wiegand 3477 | 04 May 1922 | United States of America | Arizona | Coconino Co. Indian Gardens, 3,000… | — |
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| Draba cuneifolia Nutt. | M. C. Wiegand 3305 | 04 May 1922 | United States of America | Arizona | Yavapai Co. Branch road to… | — |
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| Viola nuttallii var. nuttallii | M. C. Wiegand 3839 | 04 May 1922 | United States of America | Arizona | Yavapai Co. 14 miles southwest… | — |
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| Lithophragma tenellum Nutt. | M. C. Wiegand 3421 | 05 May 1922 | United States of America | Arizona | Coconino Co. Base of Bill… | — |
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| Purshia stansburyana (Torr.) Henrickson | M. C. Wiegand 3479 | 07 May 1922 | United States of America | Arizona | Coconino Co. Hermit Trail, 2,100… | — |
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| Fraxinus anomala Torr. ex S.Watson | M. C. Wiegand 3968 | 07 May 1922 | United States of America | Arizona | Coconino Co. Hermit Trail, Santa… | — |
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| Cryptantha capitata (Eastw.) I.M.Johnst. | M. C. Wiegand 4174 | 07 May 1922 | United States of America | Arizona | Coconino Co. Santa Monica Spring,… | — |
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| Microsteris gracilis var. humilior (Hook.) Cronquist | M. C. Wiegand 3985 | 14 May 1922 | United States of America | Arizona | Coconino Co. 5 miles east… | — |
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| Erysimum capitatum (Douglas ex Hook.) Greene subsp. capitatum | M. C. Wiegand 3377 | 15 May 1922 | United States of America | Arizona | Coconino Co. Hermit Trail, 600… | — |
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| Poa fendleriana (Steud.) Vasey | M. C. Wiegand 2995 | 15 May 1922 | United States of America | Arizona | Coconino Co. Hermit Trail, 1,000… | — |
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| Poa fendleriana (Steud.) Vasey | M. C. Wiegand 2990 | 15 May 1922 | United States of America | Arizona | Coconino Co. Hermit Trail, 650… | — |
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| Chaetopappa ericoides (Torr.) G.L.Nesom | M. C. Wiegand 4388 | 20 May 1922 | United States of America | New Mexico | Socorro Co. Desert Mesa, 23… | — |
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