Displaying 1 - 75 out of 107 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Amsonia eastwoodiana Rydb. | N. H. Holmgren | P. K. Holmgren 11487 | 14 Jun 1991 | United States of America | Utah | San Juan Co. San Juan… | — |
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| Amsonia eastwoodiana Rydb. | N. H. Holmgren | P. K. Holmgren | R. C. Barneby 8786 | 27 May 1978 | United States of America | Utah | Emery Co. Sa Rafael Desert,… | — |
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| Amsonia jonesii Woodson | N. H. Holmgren | P. K. Holmgren 8470 | 21 Jun 1977 | United States of America | Utah | Washington Co. Wire Mesa, 4.8… | — |
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| Amsonia jonesii Woodson | N. H. Holmgren | P. K. Holmgren | R. Kern 9027 | 18 Jul 1978 | United States of America | Utah | Washington Co. Pine Valley Mounatins,… | — |
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| Amsonia jonesii Woodson | N. H. Holmgren | P. K. Holmgren 13226 | 23 Jun 1998 | United States of America | Utah | Duchesne Co. West Tavaputs Plateau,… | — |
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| Apocynum androsaemifolium L. | N. H. Holmgren | P. K. Holmgren 9060 | 28 Jul 1978 | United States of America | Utah | Utah Co. Mt. Timpanogos area,… | — |
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| Apocynum cannabinum L. | N. H. Holmgren | P. K. Holmgren 9579 | 08 Jul 1980 | United States of America | Nevada | Washoe Co. Granite Range, Rock… | — |
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| Apocynum cannabinum L. | N. H. Holmgren | P. K. Holmgren 11483 | 12 Jun 1991 | United States of America | Utah | San Juan Co. San Juan… | — |
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| Apocynum sibiricum Jacq. | N. H. Holmgren | P. K. Holmgren 9000 | 19 Jun 1978 | United States of America | Nevada | Lincoln Co. Rose Valley, along… | — |
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| Arcyria | P. K. Holmgren s.n. | s.d. | United States of America | Washington | King Co. near Durvall | — | ||||
| Asclepias asperula (Decne.) Woodson | N. H. Holmgren | P. K. Holmgren 4424 | 15 Jul 1970 | United States of America | Utah | Beaver Co. Wah Wah Mountains,… | — |
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| Asclepias asperula (Decne.) Woodson | N. H. Holmgren | P. K. Holmgren 3726 | 13 Jul 1969 | United States of America | Utah | Beaver Co. Wah Wah Mountains,… | — |
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| Asclepias cryptoceras S.Watson subsp. cryptoceras | N. H. Holmgren | P. K. Holmgren 13475 | 26 May 1999 | United States of America | Utah | Emery Co. San Rafael Swell,… | — |
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| Asclepias cryptoceras S.Watson subsp. cryptoceras | N. H. Holmgren | P. K. Holmgren 13228 | 23 Jun 1998 | United States of America | Utah | Emery Co. West Tavaputs Plateau… | — |
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| Asclepias cryptoceras S.Watson subsp. cryptoceras | N. H. Holmgren | P. K. Holmgren | R. C. Barneby 8752 | 25 May 1978 | United States of America | Utah | Uintah Co. Uinta Basin, Utah… | — |
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| Asclepias cryptoceras S.Watson subsp. cryptoceras | N. H. Holmgren | P. K. Holmgren 5050 | 06 Jun 1971 | United States of America | Utah | Daggett Co. Utah Highway 44,… | — |
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| Asclepias cryptoceras S.Watson subsp. cryptoceras | N. H. Holmgren | P. K. Holmgren 5119 | 09 Jun 1971 | United States of America | Utah | Uintah Co. Uinta Mountains, Utah… | — |
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| Asclepias cryptoceras subsp. davisii (Woodson) Woodson | N. H. Holmgren | P. K. Holmgren | B. Ertter | J. L. Strachan | C. A. M. Prentice 9261 | 06 Jun 1979 | United States of America | Oregon | Malheur Co. Succor Creek area,… | — |
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| Asclepias cryptoceras subsp. davisii (Woodson) Woodson | N. H. Holmgren | P. K. Holmgren 8872 | 06 Jun 1978 | United States of America | Oregon | Malheur Co. North Fork Malheur… | — |
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| Asclepias cryptoceras subsp. davisii (Woodson) Woodson | N. H. Holmgren | P. K. Holmgren 8227 | 22 Jun 1976 | United States of America | Nevada | Nye Co. White River Valley,… | — |
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| Asclepias cryptoceras subsp. davisii (Woodson) Woodson | N. H. Holmgren | P. K. Holmgren 8969 | 17 Jun 1978 | United States of America | Nevada | Eureka Co. Antelope Valley, U.S.… | — |
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| Asclepias cryptoceras subsp. davisii (Woodson) Woodson | N. H. Holmgren | P. K. Holmgren | S. Keller 10544 | 26 Jun 1984 | United States of America | Nevada | Lander Co. Shoshone Range, road… | — |
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| Asclepias eastwoodiana Barneby | N. H. Holmgren | P. K. Holmgren 12338 | 25 May 1995 | United States of America | Nevada | Nye Co. Railroad Valley, the… | — |
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| Asclepias eastwoodiana Barneby | N. H. Holmgren | P. K. Holmgren 8959 | 15 Jun 1978 | United States of America | Nevada | Nye Co. Southern Toquima Range,… | — |
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| Asclepias eastwoodiana Barneby | N. H. Holmgren | P. K. Holmgren 8955 | 15 Jun 1978 | United States of America | Nevada | Nye Co. Ralston Valley, at… | — |
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| Asclepias eastwoodiana Barneby | N. H. Holmgren | P. K. Holmgren 8954 | 14 Jun 1978 | United States of America | Nevada | Lander Co. Reese River Valley,… | — |
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| Asclepias erosa Torr. | N. H. Holmgren | P. K. Holmgren 13843 | 07 Jun 2000 | United States of America | Nevada | Nye Co. Railroad Valley, 36.2… | — |
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| Asclepias fascicularis Decne. | N. H. Holmgren | P. K. Holmgren 9715 | 01 Aug 1980 | United States of America | Nevada | Churchill Co. Lahontan Valley, Bass… | — |
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| Asclepias hallii A.Gray | N. H. Holmgren | P. K. Holmgren 9726 | 02 Aug 1980 | United States of America | Nevada | White Pine Co. White Pine… | — |
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| Asclepias hallii A.Gray | N. H. Holmgren | P. K. Holmgren 9726 | 02 Aug 1980 | United States of America | Nevada | White Pine Co. White Pine… | — |
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| Asclepias hallii A.Gray | N. H. Holmgren | P. K. Holmgren | R. C. Barneby 8795 | 28 May 1978 | United States of America | Utah | San Juan Co. Bluff Bench,… | — |
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| Asclepias labriformis M.E.Jones | N. H. Holmgren | P. K. Holmgren 5200 | 13 Jun 1971 | United States of America | Utah | Uintah Co. 11.8 miles east-northeast… | — |
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| Asclepias labriformis M.E.Jones | N. H. Holmgren | P. K. Holmgren 8405 | 11 Jun 1977 | United States of America | Utah | Garfield Co. Water Pocket Fold… | — |
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| Asclepias labriformis M.E.Jones | N. H. Holmgren | P. K. Holmgren 11558 | 19 Jun 1991 | United States of America | Utah | Garfield Co. Waterpocket Fold, 10.1… | — |
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| Asclepias labriformis M.E.Jones | N. H. Holmgren | P. K. Holmgren | C. Sue Keller 10912 | 24 Jun 1985 | United States of America | Utah | Garfield Co. Along the Burr… | — |
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| Asclepias latifolia (Torr.) Raf. | N. H. Holmgren | P. K. Holmgren | R. Kern 9033 | 19 Jul 1978 | United States of America | Arizona | Mohave Co. Tuweep Valley, 5.8… | — |
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| Asclepias latifolia (Torr.) Raf. | N. H. Holmgren | P. K. Holmgren | R. Kern 9033 | 19 Jul 1978 | United States of America | Arizona | Mohave Co. Tuweep Valley, 5.8… | — |
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| Asclepias macrosperma Eastw. ex Vail | N. H. Holmgren | P. K. Holmgren 12728 | 06 Jun 1997 | United States of America | Utah | San Juan Co. Kane Springs… | — |
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| Asclepias macrosperma Eastw. ex Vail | N. H. Holmgren | P. K. Holmgren 11533 | 18 Jun 1991 | United States of America | Utah | Garfield Co. Cane Spring Desert,… | — |
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| Asclepias macrosperma Eastw. ex Vail | N. H. Holmgren | P. K. Holmgren 11775 | 12 Jun 1992 | United States of America | Utah | Garfield Co. New Home Bench,… | — |
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| Asclepias macrosperma Eastw. ex Vail | N. H. Holmgren | P. K. Holmgren 11948 | 17 Jun 1993 | United States of America | Utah | San Juan Co. Utah Highway… | — |
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| Asclepias macrosperma Eastw. ex Vail | N. H. Holmgren | P. K. Holmgren | R. C. Barneby 9116 | 21 May 1979 | United States of America | Utah | Wayne Co. Water Pockey Fold… | — |
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| Asclepias macrosperma Eastw. ex Vail | N. H. Holmgren | P. K. Holmgren 13510 | 20 May 1999 | United States of America | Utah | San Juan Co. Desert 37… | — |
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| Asclepias macrosperma Eastw. ex Vail | N. H. Holmgren | P. K. Holmgren | A. Zwinger 11858 | 08 Jun 1993 | United States of America | Utah | San Juan Co. San Juan… | — |
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| Asclepias ruthiae Maguire | N. H. Holmgren | P. K. Holmgren | R. C. Barneby 9113 | 21 May 1979 | United States of America | Utah | Wayne Co. Utah Highway 24,… | — |
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| Asclepias ruthiae Maguire | N. H. Holmgren | P. K. Holmgren | R. C. Barneby 8780 | 27 May 1978 | United States of America | Utah | Emery Co. San Rafael Swell,… | — |
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| Asclepias ruthiae Maguire | N. H. Holmgren | P. K. Holmgren 11706 | 01 Jun 1992 | United States of America | Utah | Emery Co. San Rafael Desert,… | — |
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| Asclepias speciosa Torr. | N. H. Holmgren | P. K. Holmgren 5254 | 27 Jun 1971 | United States of America | Nevada | Nye Co. Railroad Valley, U.S.… | — |
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| Asclepias speciosa Torr. | N. H. Holmgren | P. K. Holmgren 9343 | 18 Jun 1979 | United States of America | Nevada | Lincoln Co. North Lake Valley,… | — |
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| Asclepias speciosa Torr. | N. H. Holmgren | P. K. Holmgren 10003 | 02 Jul 1981 | United States of America | Idaho | Franklin Co. Junction of Idaho… | — |
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| Asclepias subverticillata (A.Gray) Vail | N. H. Holmgren | P. K. Holmgren | R. Kern 9021 | 17 Jul 1978 | United States of America | Utah | Washington Co. Frontage road along… | — |
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| Asclepias subverticillata (A.Gray) Vail | N. H. Holmgren | P. K. Holmgren 8474 | 21 Jun 1977 | United States of America | Utah | Washington Co. Utah Highway 59,… | — |
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| Asclepias subverticillata (A.Gray) Vail | N. H. Holmgren | P. K. Holmgren | R. Kern 9042 | 21 Jul 1978 | United States of America | Arizona | Coconino Co. Ca. 11.5 km… | — |
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| Asclepias subverticillata (A.Gray) Vail | N. H. Holmgren | P. K. Holmgren 4723 | 10 Aug 1970 | United States of America | Utah | Garfield Co. Utah 54, 10.7… | — |
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| Astragalus cibarius E.Sheld. | N. H. Holmgren | P. K. Holmgren 4772 | 23 May 1971 | United States of America | Idaho | Bear Lake Co. Bear River… | — |
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| Astragalus cibarius E.Sheld. | N. H. Holmgren | P. K. Holmgren 4786 | 24 May 1971 | United States of America | Idaho | Bear Lake Co. Bear River… | — |
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| Aulacomnium androgynum (Hedw.) Schwägr. | P. K. Holmgren 650 | 05 Feb 1965 | United States of America | Washington | King Co. West of Cottage… | — | ||||
| Aulacomnium androgynum (Hedw.) Schwägr. | P. K. Holmgren 643 | 31 Jan 1965 | United States of America | Washington | Snohomish Co. Granite Falls, Trout… | — | ||||
| Bryum pallescens Schleich. ex Schwägr. | P. K. Holmgren 705 | 06 Mar 1965 | United States of America | Washington | King Co. University of Washington… | — | ||||
| Calliergonella cuspidata (Hedw.) Loeske | P. K. Holmgren 691 | 20 Feb 1965 | United States of America | Washington | Snohomish Co. Along the Ben… | — | ||||
| Centaurium exaltatum (Griseb.) W.Wight ex Piper | N. H. Holmgren | P. K. Holmgren 13374 | 13 Aug 1998 | United States of America | Utah | Uintah Co. Uinta Basin, near… | — |
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| Ceratiomyxa | P. K. Holmgren s.n. | s.d. | United States of America | Washington | King Co. near Duvall | — | ||||
| Chamaesaracha coronopus (Dunal) A.Gray | N. H. Holmgren | P. K. Holmgren | A. Zwinger 11862 | 08 Jun 1993 | United States of America | Utah | San Juan Co. San Juan… | — |
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| Chamaesaracha coronopus (Dunal) A.Gray | N. H. Holmgren | P. K. Holmgren 11460 | 10 Jun 1991 | United States of America | Utah | San Juan Co. San Juan… | — |
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| Colpomenia sinuosa (Mertens ex Roth) Derbès & Solier | P. K. Holmgren 19 | 12 May 1963 | United States of America | Georgia | Decatur Co. Bainbridge Island, Decatur… | — |
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| Corallina | P. K. Holmgren 117 | 26 May 1963 | United States of America | Washington | Clallam Co. Olympic Peninsula, Makah… | — |
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| Corallina | P. K. Holmgren 116 | 26 May 1963 | United States of America | Washington | Clallam Co. Olympic Peninsula, Makah… | — |
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| Corallina vancouveriensis Yendo | P. K. Holmgren 118 | 26 May 1963 | United States of America | Washington | Clallam Co. Olympic Peninsula, Makah… | — |
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| Costaria costata (C.Agardh) D.A.Saunders | P. K. Holmgren 33 | 12 May 1963 | United States of America | Washington | Bainbridge Island | — |
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| Costaria costata (C.Agardh) D.A.Saunders | P. K. Holmgren 81 | 26 May 1963 | United States of America | Washington | Clallam Co. Olympic Peninsula, Makah… | — |
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| Desmarestia ligulata (Stackh.) J.V.Lamour. | P. K. Holmgren 43 | 26 May 1963 | United States of America | Washington | Clallam Co. Makah Bay | — |
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| Egregia menziesii (W.B.Turner) Aresch. | P. K. Holmgren 175 | 16 Nov 1963 | United States of America | Washington | Island Co. Whidbey Island, West… | — |
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| Frasera albomarginata S.Watson | N. H. Holmgren | P. K. Holmgren 13816 | 04 Jun 2000 | United States of America | Utah | Beaver Co. Wah Wah Mountains,… | — |
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| Fucus | P. K. Holmgren 18 | 12 May 1963 | United States of America | Washington | Bainbridge Island, Decatur Reef | — |
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| Gentiana calycosa Griseb. | N. H. Holmgren | P. K. Holmgren 14087 | 17 Jul 2000 | United States of America | Utah | Summit Co. Uinta Mountains, along… | — |
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