Displaying 1 - 75 out of 544 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Oxyria digyna (L.) Hill | L. Constance 3738 | 20 Jul 1961 | United States of America | Nevada | Humboldt Co. Between Hinkey Summit… | — |
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| Lomatium ravenii Mathias & Constance | L. Constance 3672 | 14 Jun 1959 | United States of America | California | Lassen Co. One mile south… | isotype |
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| Sphaeralcea ambigua A.Gray | L. Constance 2427 | 08 Aug 1938 | United States of America | California | Inyo Co. Bishop Creek Canyon… | — |
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| Penstemon deustus Douglas ex Lindl. var. deustus | L. Constance 1756 | 13 Jun 1936 | United States of America | Washington | Garfield Co. Rocky slope above… | — |
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| Caulanthus major var. nevadensis Rollins | L. Constance 3697 | 19 Jul 1961 | United States of America | Nevada | Humboldt Co. Open ridge east… | — |
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| Penstemon centranthifolius (Benth.) Benth. | L. Constance 2189 | 01 May 1938 | United States of America | California | Glenn Co. Above Stony Creek,… | — |
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| Penstemon centranthifolius (Benth.) Benth. | L. Constance 2246 | 23 May 1938 | United States of America | California | San Benito Co. Canyon of… | — |
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| Thalictrum fendleri Engelm. ex A.Gray | L. Constance 3719 | 19 Jul 1961 | United States of America | Nevada | Humboldt Co. Aspen grove just… | — |
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| Arabis koehleri var. stipitata Rollins | L. Constance 2976 | 18 May 1942 | United States of America | Oregon | Josephine Co. Illinois River 5… | — |
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| Penstemon azureus var. angustissimus A.Gray | L. Constance 2375 | 30 Jun 1938 | United States of America | California | Madera Co. Fresno Flats on… | — |
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| Perideridia erythrorhiza (Piper) T.I.Chuang & Constance | L. Constance 3757 | 23 Aug 1965 | United States of America | Oregon | Klamath Co. 1.6 miles southeast… | — |
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| Eriogonum heracleoides Nutt. var. heracleoides | L. Constance 3712 | 19 Jul 1961 | United States of America | Nevada | Humboldt Co. Open ridge east… | — |
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| Argemone munita subsp. rotundata (Rydb.) G.B.Ownbey | L. Constance 2445 | 10 Aug 1938 | United States of America | California | Mono Co. Near Fales Hot… | — |
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| Argemone munita subsp. rotundata (Rydb.) G.B.Ownbey | L. Constance 2445 | 10 Aug 1938 | United States of America | California | Mono Co. Near Fales Hot… | — |
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| Penstemon gracilentus A.Gray | L. Constance 2314 | 10 Jun 1938 | United States of America | California | Plumas Co. West edge of… | — |
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| Phacelia argentea A.Nelson & J.F.Macbr. | L. Constance 2622 | 18 May 1940 | United States of America | California | Del Norte Co. Near Lake… | — |
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| Phacelia argentea A.Nelson & J.F.Macbr. | L. Constance 2625 | 19 May 1940 | United States of America | Oregon | Curry Co. Mouth of Pistol… | — |
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| Arabis koehleri Howell | L. Constance 2954 | 16 May 1942 | United States of America | Oregon | Douglas Co. Umpqua River (Mount… | — |
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| Arabis suffrutescens var. perstylosa Rollins | L. Constance 2309 | 09 Jun 1938 | United States of America | California | Plumas Co. Above the Middle… | isotype |
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| Aconitum columbianum Nutt. subsp. columbianum | L. Constance 3726 | 19 Jul 1961 | United States of America | Nevada | Humboldt Co. Martin Creek Campground… | — |
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| Penstemon flavescens Pennell | L. Constance 1986 | 13 Jul 1937 | United States of America | Idaho | Idaho Co. Summit of Coolwater… | — |
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| Lomatium bradshawii (Rose ex Mathias) Mathias & Constance | L. Constance 2783 | 24 Jun 1940 | United States of America | Oregon | Lane Co. Amazon Slough | — |
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| Lomatium bradshawii (Rose ex Mathias) Mathias & Constance | L. Constance 2790 | 25 Jun 1940 | United States of America | Oregon | Lane Co. Near Long Tom… | — |
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| Lomatium stebbinsii Schlessman & Constance | L. Constance 3895 | 26 May 1978 | United States of America | California | Tuolumne Co. 4 miles east… | isotype |
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| Mentzelia albicaulis (Douglas ex Hook.) Torr. & A.Gray | L. Constance 3703 | 19 Jul 1961 | United States of America | Nevada | Humboldt Co. Open ridge east… | — |
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| Arabis davidsonii Greene | L. Constance 3707 | 19 Jul 1961 | United States of America | Nevada | Humboldt Co. Open ridge east… | — |
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| Keckiella cordifolia (Benth.) Straw | L. Constance 2841 | 17 Jun 1941 | United States of America | California | Ventura Co. North Fork of… | — |
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| Silene douglasii Hook. var. douglasii | L. Constance 3706 | 19 Jul 1961 | United States of America | Nevada | Humboldt Co. Open ridge east… | — |
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| Penstemon attenuatus Douglas ex Lindl. var. attenuatus | L. Constance 2027 | 22 Jul 1937 | United States of America | Idaho | Nez Perce Co. Canadian, above… | — |
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| Penstemon attenuatus Douglas ex Lindl. var. attenuatus | L. Constance 1703 | 31 May 1936 | United States of America | Idaho | Lewis Co. 3 miles east… | — |
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| Populus trichocarpa Torr. & A.Gray | L. Constance | 08 Jul 1928 | United States of America | Oregon | Lake Co. Hills E of… | — |
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| Penstemon heterophyllus var. purdyi (D.D.Keck) McMinn | L. Constance 676 | 26 May 1934 | United States of America | California | Humboldt Co. South Fork of… | — |
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| Penstemon heterophyllus var. purdyi (D.D.Keck) McMinn | L. Constance 2148 | 22 Apr 1938 | United States of America | California | Colusa Co. Above Salt Creek,… | — |
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| Penstemon heterophyllus var. purdyi (D.D.Keck) McMinn | L. Constance 2148 | 22 Apr 1938 | United States of America | California | Colusa Co. Above Salt Creek,… | — |
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| Penstemon heterophyllus var. purdyi (D.D.Keck) McMinn | L. Constance 2832 | 29 May 1941 | United States of America | California | Sutter Co. Ridges south of… | — |
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| Arabis glabra (L.) Bernh. | L. Constance 9529 | 25 Jun 1928 | United States of America | Oregon | Lake Co. S of Gearhart… | — |
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| Arabis glabra (L.) Bernh. | L. Constance 9530 | 25 Jun 1928 | United States of America | Oregon | Lake Co. Klamath Falls-Lakeview Highway,… | — |
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| Penstemon speciosus Douglas | L. Constance 2331 | 11 Jun 1938 | United States of America | California | Lassen Co. 3.5 miles north… | — |
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| Penstemon speciosus Douglas | L. Constance s.n. | 29 Jun 1928 | United States of America | Oregon | Klamath Co. East side of… | — |
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| Penstemon speciosus Douglas | L. Constance 2724 | 31 May 1940 | United States of America | Oregon | Baker Co. Above Burnt River,… | — |
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| Penstemon speciosus Douglas | L. Constance 1901 | 13 Jun 1937 | United States of America | Washington | Spokane Co. Bank of the… | — |
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| Penstemon cinicola D.D.Keck | L. Constance 3460 | 04 Aug 1953 | United States of America | Oregon | Deschutes Co. Newberry Crater, flat… | — |
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| Perideridia leptocarpa T.I.Chuang & Constance | L. Constance 3768 | 15 Jun 1966 | United States of America | California | Siskiyou Co. West-facing slope above… | isotype |
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| Aquilegia formosa Fisch. ex DC. | L. Constance 3721 | 19 Jul 1961 | United States of America | Nevada | Humboldt Co. Just north of… | — |
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| Aquilegia formosa Fisch. ex DC. | L. Constance 9808 | 23 Jun 1928 | United States of America | Oregon | Lake Co. Along a creek… | — |
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| Salix hindsiana Benth. | L. Constance 9867 | 09 Jul 1928 | United States of America | Oregon | Lake Co. Along an irrigation… | — |
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| Mentzelia laevicaulis (Douglas ex Hook.) Torr. & A.Gray var. laevicaulis | L. Constance 2444 | 10 Aug 1938 | United States of America | California | Mono Co. Near Fales Hot… | — |
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| Penstemon serrulatus Menzies ex Rees | L. Constance 2779 | 16 Jun 1940 | United States of America | Oregon | Clackamas Co. South side of… | — |
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| Penstemon pennellianus D.D.Keck | L. Constance 1165 | 19 Jul 1935 | United States of America | Washington | Columbia Co. Godman Springs, Blue… | — |
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| Penstemon pennellianus D.D.Keck | L. Constance 1745 | 13 Jun 1936 | United States of America | Washington | Garfield Co. Near Clearwater Ranger… | — |
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| Eucephalus vialis Bradshaw | L. Constance 951 | 09 Jul 1934 | United States of America | Oregon | Lane Co. On Lorane Highway,… | — |
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| Penstemon heterophyllus Lindl. var. heterophyllus | L. Constance 2245 | 23 May 1938 | United States of America | California | San Benito Co. On Tres… | — |
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| Penstemon grinnellii var. scrophularioides (M.E.Jones) N.H.Holmgren | L. Constance 2247 | 23 May 1938 | United States of America | California | San Benito Co. Canyon of… | — |
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| Thelypodium laciniatum (Hook.) Endl. | L. Constance 3728 | 20 Jul 1961 | United States of America | Nevada | Humboldt Co. Granite cliffs just… | — |
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| Penstemon venustus Douglas ex Lindl. | L. Constance 1206 | 19 Jul 1935 | United States of America | Washington | Columbia Co. Godman Springs, Blue… | — |
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| Penstemon venustus Douglas ex Lindl. | L. Constance 1206 | 19 Jul 1935 | United States of America | Washington | Columbia Co. Godman Springs, Blue… | — |
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| Eatonella congdonii A.Gray | L. Constance 2098 | 10 Apr 1938 | United States of America | California | Fresno Co. 12 miles northeast… | — |
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| Penstemon fruticosus var. scouleri (Lindl.) Cronquist | L. Constance 1844 | 23 May 1937 | United States of America | Washington | Ferry Co. Granitic ledges of… | — |
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| Phacelia stebbinsii Constance & Heckard | L. Constance 3869 | 29 Jun 1969 | United States of America | California | El Dorado Co. Silver Creek… | isotype |
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| Mirabilis macfarlanei Constance & Rollins | L. Constance 1579 | 15 May 1936 | United States of America | Oregon | Wallowa Co. Lower Cottonwood Landing,… | isotype |
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| Brodiaea elegans Hoover | L. Constance 2289 | 08 Jun 1938 | United States of America | California | Nevada Co. 3 miles north… | isotype |
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| Penstemon humilis A.Gray var. humilis | L. Constance 2713 | 30 May 1940 | United States of America | Oregon | Wheeler Co. 7 miles north… | — |
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| Penstemon humilis A.Gray var. humilis | L. Constance 2716 | 31 May 1940 | United States of America | Oregon | Grant Co. 5 miles northeast… | — |
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| Thlaspi montanum var. siskiyouense P.K.Holmgren | L. Constance 2972 | 18 May 1942 | United States of America | Oregon | Josephine Co. Klamath-Siskiyou region. Kerby… | isotype |
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| Penstemon deustus var. suffrutescens L.F.Hend. | L. Constance 2294 | 08 Jun 1938 | United States of America | California | Sierra Co. Junction of North… | — |
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| Penstemon richardsonii var. curtiflorus (D.D.Keck) Cronquist | L. Constance 2705 | 30 May 1940 | United States of America | Oregon | Gilliam Co. Five miles south… | — |
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| Penstemon richardsonii subsp. curtiflorus D.D.Keck | L. Constance 2705 | 30 May 1940 | United States of America | Oregon | Gilliam Co. Five miles south… | isotype |
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| Penstemon laetus var. leptosepalus Greene ex A.Gray | L. Constance 2290 | 08 Jun 1938 | United States of America | California | Nevada Co. 2 miles north… | — |
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| Penstemon peckii Pennell | L. Constance 3458 | 03 Aug 1953 | United States of America | Oregon | Deschutes Co. Near Black Butte,… | — |
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| Penstemon roezlii Regel | L. Constance 9922 | 08 Jul 1928 | United States of America | Oregon | Lake Co. East of Lakeview | — |
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| Penstemon roezlii Regel | L. Constance 9923 | 02 Jul 1928 | United States of America | Oregon | Klamath Co. Highway near Keno | — |
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| Penstemon roezlii Regel | L. Constance 2947 | 16 May 1942 | United States of America | Oregon | Josephine Co. South base of… | — |
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| Penstemon roezlii Regel | L. Constance 2947 | 16 May 1942 | United States of America | Oregon | Josephine Co. South base of… | — |
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| Penstemon roezlii Regel | L. Constance 2335 | 12 Jun 1938 | United States of America | California | Modoc Co. Open flat near… | — |
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| Ranunculus occidentalis var. dissectus L.F.Hend. | L. Constance 9821 | 19 Jun 1928 | United States of America | Oregon | Lake Co. Paulina Marsh | — |
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