Scientific Name Collected By Identified By Date Collected Date Identified Family Institution Catalog Number Type Status
collected Asclepias subverticillata W. A. Weber; Wittmann 1993-07-11 Apocynaceae COLO 00024984
collected Apocynum cannabinum W. A. Weber 1967-07-29 Apocynaceae COLO 00022236
collected Asclepias viridiflora W. A. Weber; R. C. Wittmann 1991-09-06 Apocynaceae COLO 00025866
collected Asclepias viridiflora W. A. Weber 1948-06-15 Apocynaceae COLO 00025841
collected Asclepias subverticillata W. A. Weber 1979-09-01 Apocynaceae COLO 00025056
collected Asclepias speciosa Gregory Kunkel; Leila Shultz and W.A. Weber 1973-07-13 Apocynaceae COLO 00024067
collected Apocynum cannabinum W. A. Weber; C. F. Livingston 1951-06-20 Apocynaceae COLO 00022103
collected Apocynum cannabinum W. A. Weber 1997-07-16 Apocynaceae COLO 00219568
collected identified Asclepias macrotis W. A. Weber W. A. Weber 1962-06-13 Apocynaceae COLO 01887017
collected identified Asclepias oenotheroides W. A. Weber W. A. Weber 1962-06-13 1962 Apocynaceae COLO 01886951
collected identified Apocynum cannabinum W. A. Weber W. A. Weber 1962-06-13 1962 Apocynaceae COLO 01877406
collected identified Asclepias viridiflora W. A. Weber W. A. Weber 1962-06-12 1962 Apocynaceae COLO 01888692
collected Asclepias cryptoceras W. A. Weber 1950-05-18 Apocynaceae COLO 01885581
collected Amsonia jonesii W. A. Weber 1950 Apocynaceae COLO 01875962
collected Amsonia tomentosa V. Siplivinsky; W. A. Weber, R. C. Wittmann 1982-04-08 Apocynaceae COLO 01876267
collected Matelea parviflora V. Siplivinsky; W. A. Weber & R. C. Wittmann James P. Riser II 1982-04-07 17 October 2003 Apocynaceae COLO 01882794
collected Asclepias nyctaginifolia V. Siplivinsky; W. A. Weber & R. C. Wittmann 1982-04-07 Apocynaceae COLO 01889161
collected Asclepias asperula V. Siplivinsky; W. A. Weber, R. C. Wittmann Apocynaceae COLO 01884980
collected Asclepias subverticillata W. A. Weber; P. Salamun 1965-07-09 Apocynaceae COLO 01887843
collected Asclepias linaria V. Siplivinsky; W. A. Weber, R. C. Wittmann Apocynaceae COLO 01886779
collected Sarcostemma cynanchoides V. Siplivinsky; W. A. Weber, R. C. Wittmann 1982-04-05 Apocynaceae COLO 01882521
collected identified Asclepias pumila William A Weber William A Weber 1948-08-08 Apocynaceae KU 198213
collected identified Amsonia jonesii William A Weber William A Weber 1950-05-18 Apocynaceae KU 177288
collected identified Asclepias engelmanniana William A Weber William A Weber 1948-08-08 Apocynaceae KU 197822
collected Periploca laevigata Wittmann, R.; Weber, W.A. 1980-03-22 Apocynaceae CM CM276454
collected Apocynum cannabinum Weber, W.A.; Rector, C.; Wingate, J.; Sipl., V. 1982-05-06 Apocynaceae CM CM288742
collected Cynanchum scoparium Weber & West 1927-11-24 Apocynaceae FLAS 19967
collected Asclepias tuberosa A. Peters, S. Braem, Weber A. R. Franck 1991-03-13 13-Jun-2013 Apocynaceae USF 202411
collected Asclepias cinerea Weber & West 1927-06-08 Apocynaceae FLAS 19805
collected Asclepias pedicellata Weber & West 1927-09-13 Apocynaceae FLAS 19982