• M. Hopkins 90, United States of America
• J. E. Bare 2114, United States of America
• L. J. Harms 1740, United States of America
• V. L. Harms 1132, United States of America
• G. L. I. Zundel 253, United States of America
• O. E. Howard, United States of America
• D. E. Atha 5759, United States of America
• D. E. Atha 11459, United States of America
• W. D. Longbottom 15592, United States of America
• W. D. Longbottom 15540, United States of America
• W. D. Longbottom 15572, United States of America
• W. D. Longbottom 15930, United States of America
• W. D. Longbottom 17713, United States of America
• W. D. Longbottom 13953, United States of America
• W. D. Longbottom 13966, United States of America
• W. D. Longbottom 23278, United States of America
• W. D. Longbottom 23312, United States of America
• D. E. Atha 15678, United States of America
• R. Alvarez 201476, United States of America
• R. Decandido CP5, United States of America
• Frémont's 2nd Expedition s.n., United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• K. M. Wiegand 241, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• H. M. Denslow s.n., United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• J. J. Crooke s.n., United States of America
• H. M. Denslow s.n., United States of America
• A. M. Vail s.n., United States of America
• J. F. Poggenburg s.n., United States of America
• Asclepias incarnata L.
• A. D. Granger s.n., United States of America
• A. D. Granger s.n., United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• J. F. Poggenburg s.n., United States of America
• E. G. Whitney 1331, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• H. M. Denslow s.n., United States of America
• J. von Schrenk s.n., United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• G. W. Bassett s.n., United States of America
• A. MacElwee s.n., United States of America
• A. T. Beals s.n., United States of America
• J. Kezer s.n., United States of America
• W. de W. Miller 1255, United States of America
• W. M. Canby s.n., United States of America
• A. Gattinger s.n., United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• W. D. Longbottom 13942, United States of America
• W. D. Longbottom 15768, United States of America
• W. D. Longbottom 13947, United States of America
• W. D. Longbottom 14028, United States of America
• W. D. Longbottom 15428, United States of America
• W. D. Longbottom 13829, United States of America
• W. D. Longbottom 14134, United States of America
• W. D. Longbottom 13892, United States of America
• A. MacElwee 892, United States of America
• A. A. Tyler s.n., United States of America
• Asclepias incarnata L.
• A. D. Granger s.n., United States of America
• J. A. Shafer 159, United States of America
• Neek s.n., United States of America
• Neek s.n., United States of America
• Neek s.n., United States of America
• Asclepias incarnata L.
• F. C. Thomas 3243, United States of America
• Asclepias incarnata L.
• S. G. Shetler 244, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• M. McKee 939, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• S. McCoy 1054, United States of America
• M. McKee 336, United States of America
• S. McCoy 622, United States of America
• S. McCoy 1582, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• W. D. Longbottom 11875, United States of America
• W. D. Longbottom 11952, United States of America
• W. D. Longbottom 13765, United States of America
• H. M. Denslow s.n., United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• W. D. Longbottom 13987, United States of America
• W. D. Longbottom 14055, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Lt. Abert s.n., Unknown
• Asclepias incarnata L.
• Asclepias incarnata L.
• J. H. Mellichamp s.n., United States of America
• A. E. Radford 16277, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• P. Johnson 65, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• R. Thomson 225, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• L. Hauser 3450, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• B. Welsh 686, United States of America
• A. B. Show 90, United States of America
• J. B. Norton 327, United States of America
• Asclepias incarnata L.
• G. W. Stevens 2364, United States of America
• U. T. Waterfall 3535, United States of America
• C. Parry s.n., United States of America
• J. Reverchon s.n., United States of America
• J. Reverchon 2557, United States of America
• Asclepias incarnata L.
• C. S. Crandall 1536, United States of America
• F. Tweedy 4958, United States of America
• G. E. Osterhout 2354, United States of America
• G. E. Osterhout 2354, United States of America
• C. S. Crandall s.n., United States of America
• C. S. Crandall s.n., United States of America
• Asclepias incarnata L.
• P. A. Rydberg 1077, United States of America
• P. A. Rydberg 1518, United States of America
• P. A. Rydberg 1518, United States of America
• P. A. Rydberg 5759, United States of America
• P. A. Rydberg 1518, United States of America
• H. N. Moldenke 11692, United States of America
• S. McCoy 345, United States of America
• S. McCoy 4174, United States of America
• H. A. Gleason 9925, United States of America
• S. McCoy 6166, United States of America
• E. T. Moldenke 11675, United States of America
• A. A. Heller s.n., United States of America
• A. A. Heller 1197, United States of America
• E. J. Palmer 42169, United States of America
• H. A. Gleason 114, United States of America
• H. A. Gleason 9351, United States of America
• S. McCoy 5640, United States of America
• H. A. Gleason 9479, United States of America
• S. McCoy 4458, United States of America
• P. Johnson 599, United States of America
• S. McCoy 5961, United States of America
• S. McCoy 5223, United States of America
• E. T. Moldenke 19169, United States of America
• S. McCoy 6122, United States of America
• J. H. Barnhart 151, United States of America
• J. H. Barnhart 1218, United States of America
• H. M. Raup 7692, United States of America
• J. H. Lehr 208, United States of America
• C. C. Curtis s.n., United States of America
• Collector unspecified s.n., United States of America
• Collector unspecified s.n., United States of America
• N. L. Britton, United States of America
• W. T. Barker 1959, United States of America
• J. Richardson 958, United States of America
• R. E. Brooks 12399, United States of America
• W. H. Horr E211, United States of America
• S. A. Mori 28185, United States of America
• G. J. Ikenberry s.n., United States of America
• E. N. Plank s.n., United States of America
• G. Stevens 95-540, United States of America
• A. C. V. Schott s.n., United States of America
• F. J. Lindheimer s.n., United States of America
• Collector unknown s.n., United States of America
• B. C. Tharp s.n., United States of America
• M. E. Wharton 961, United States of America
• M. E. Wharton 2900, United States of America
• F. T. McFarland 57, United States of America
• C. R. Gunn J167, United States of America
• E. J. Palmer 32535, United States of America
• R. R. Halse 8304, United States of America
• E. O. Wooton s.n., United States of America
• C. W. Short s.n., United States of America
• E. O. Wooton 237, United States of America
• E. O. Wooton 237, United States of America
• W. M. Canby s.n., United States of America
• W. M. Canby s.n., United States of America
• D. E. Atha 6038, United States of America
• M. H. Nee 59387, United States of America
• Asclepias incarnata L.
• J. A. Steyermark 24266, United States of America
• L. B. Smith 3897, United States of America
• S. S. Visher 2029, United States of America
• E. S. Burgess, United States of America
• E. S. Burgess, United States of America
• E. S. Burgess, United States of America
• A. Miner 08-08-06-5, United States of America
• M. H. Nee 59313, United States of America
• F. C. MacKeever N285, United States of America
• R. T. Johnson, United States of America
• W. H. Welch 199, United States of America
• W. H. Welch 421, United States of America
• W. H. Welch 6913, United States of America
• W. H. Welch 10162, United States of America
• F. S. Earle 335, United States of America
• N. Taylor 1400, United States of America
• G. V. Nash s.n., United States of America
• G. V. Nash 548, United States of America
• G. V. Nash 620, United States of America
• G. V. Nash 547, United States of America
• G. V. Nash 1606, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• M. A. Vincent 15136, United States of America
• W. D. Longbottom 20033, United States of America
• S. E. Parker 75.156, United States of America
• L. C. Higgins 12296, United States of America
• L. C. Higgins 12440, United States of America
• D. S. Correll 34593, United States of America
• N. H. Holmgren 9010, United States of America
• N. H. Holmgren 9010, United States of America
• N. H. Holmgren 9049, United States of America
• N. H. Holmgren 9050, United States of America
• L. Arnow 5802, United States of America
• E. Bolen s.n., United States of America
• A. Tiehm 6274, United States of America
• L. J. Harms 2777, United States of America
• S. R. Ziegler 1767, United States of America
• R. D. Dorn 5440, United States of America
• C. A. M. Prentice ha18, United States of America
• W. T. Barker 2988, United States of America
• R. W. Lichvar 2274, United States of America
• J. R. Crutchfield 2287, United States of America
• J. R. Crutchfield 2254, United States of America
• L. K. Magrath 5970C, United States of America
• Collector unspecified 24, United States of America
• T. M. Weiss 331, United States of America
• C. Stone 439, United States of America
• S. D. Swanson 1136, United States of America
• S. D. Swanson 1088, United States of America
• S. D. Swanson 667, United States of America
• S. D. Swanson 1033, United States of America
• L. H. MacDaniels 145, United States of America
• V. E. McNeilus 98-748, United States of America
• G. F. Buddell, Magnoliophyta; North America
• P. A. Hyypio 2474, United States of America
• F. C. MacKeever N478, United States of America
• F. C. MacKeever MV398, United States of America
• J. L. Gentry, Magnoliophyta; North America
• R. D. Whetstone 1989, United States of America
• G. F. Buddell, Magnoliophyta; North America
• E. J. Neese 12060, United States of America
• P. A. Fryxell 1856, United States of America
• G. F. Buddell, Magnoliophyta; North America
• V. E. McNeilus 92-854, United States of America
• L. C. Higgins 15939, United States of America
• L. C. Higgins 15939, United States of America
• A. Foss s.n., United States of America
• F. H. Utech 79-339, United States of America
• J. Gowdey s.n., United States of America
• C. E. Garton 9003, Canada
• D. Demarée 11519, United States of America
• D. S. Correll 54020, United States of America
• D. Ward 81-303, United States of America
• R. D. Thomas 124926, United States of America
• R. D. Thomas 124960, United States of America
• T. S. Elias 6786, United States of America
• D. B. Dunn 13954, United States of America
• T. G. Yuncker 18947, United States of America
• R. D. Thomas 120906, United States of America
• H. M. Fox s.n., United States of America
• Collector unspecified s.n.
• S. S. Visher 2228, United States of America
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• J. M. Gillett 7197, Canada
• Asclepias incarnata L.
• Asclepias incarnata L.
• Asclepias incarnata L.
• H. Loconte 173, United States of America
• W. R. Buck 44775, United States of America
• D. E. Atha 16372, United States of America
• C. Pfaff s.n., United States of America
• D. Demarée 11466, United States of America
• D. B. Ward 5267, United States of America
• R. D. Dorn 5272, United States of America
• E. J. Neese 16096, United States of America
• S. R. Ziegler 716, United States of America
• P. A. Fryxell 346, United States of America
• F. W. Hunnewell 5374, United States of America
• L. S. Vescio s.n., United States of America
• S. R. Hill 25193, United States of America
• S. R. Hill 21741, United States of America
• S. R. Hill 9367, United States of America
• S. R. Hill 26054, United States of America
• S. R. Hill 29659, United States of America
• P. Wilson s.n., United States of America
• P. H. Raven 27846, United States of America

• D. E. Atha 6038, United States of America
• D. E. Atha 11459, United States of America
• D. E. Atha 15678, United States of America

• Asclepias incarnata L.