Scientific Name Collected By Identified By Date Collected Date Identified Family Institution Catalog Number Type Status
collected Asclepias speciosa W. A. Weber R. E. Woodson Jr. 1941-Jul-10 Apocynaceae UWBM 125590
collected Asclepias latifolia (Torr.) Raf. W. A. Weber 1970-08-08 Apocynaceae NY 3517345
collected Asclepias engelmanniana Woodson W. A. Weber 1991-07-13 Apocynaceae NY 3516102
collected Asclepias tuberosa var. interior (Woodson) Shinners W. A. Weber 1967-07-06 Apocynaceae NY 3529490
collected Asclepias subverticillata (A.Gray) Vail W. A. Weber 1965-07-09 Apocynaceae NY 3528827
collected Asclepias subverticillata (A.Gray) Vail W. A. Weber 1991-07-12 Apocynaceae NY 3528833
collected Asclepias latifolia W. A. Weber; G. Arp 1970-08-08 Apocynaceae Utah State University UTC00129636
collected Asclepias subverticillata W.A. Weber; Hans Beck 1983-08-01 Apocynaceae Utah State University UTC00184655
collected Amsonia jonesii W. A. Weber & D. F. Murray 1965 Apocynaceae US 3022945
collected Asclepias subverticillata W.A. Weber; Hans Beck 1983-08-01 Apocynaceae UCR
collected Asclepias latifolia W. A. Weber; G. Arp 1970-08-08 Apocynaceae SD
collected Amsonia jonesii Woodson W. A. Weber 1965-05-16 Apocynaceae NY 4160866
collected Asclepias cryptoceras W. A. Weber; Wittmann & Rector 1982-05-31 Apocynaceae COLO 00023176
collected Apocynum androsaemifolium W. A. Weber 1993-09-12 Apocynaceae COLO 00021659
collected Asclepias hallii W. A. Weber; Dan Randolph 1984-07-25 Apocynaceae COLO 00023366
collected Asclepias viridiflora W. A. Weber 1949-08-04 Apocynaceae COLO 00025825
collected Apocynum cannabinum W. A. Weber 1951-08-14 Apocynaceae COLO 00022145
collected Asclepias tuberosa ssp. terminalis W. A. Weber 1967-07-06 Apocynaceae COLO 00024737
collected Asclepias cryptoceras W. A. Weber 1948-05-20 Apocynaceae COLO 00023119
collected Asclepias stenophylla W. A. Weber 1965-07-03 Apocynaceae COLO 00025098
collected Asclepias incarnata W. A. Weber 1949-07-08 Apocynaceae COLO 00023630
collected Asclepias uncialis W. A. Weber 1947 Apocynaceae COLO 00024562
collected Asclepias latifolia W. A. Weber; Wingate 1978-07-07 Apocynaceae COLO 00023598
collected Asclepias uncialis W. A. Weber; R. C. Wittmann 1991 Apocynaceae COLO 00024638
collected Asclepias arenaria W. A. Weber 1949-07-20 Apocynaceae COLO 00022574
collected Asclepias subverticillata W. A. Weber; R. C. Wittmann 1991-07-12 Apocynaceae COLO 00024976
collected Asclepias speciosa W. A. Weber 1970-08-13 Apocynaceae COLO 00024216
collected Asclepias macrotis W. A. Weber 1948-08-06 Apocynaceae COLO 00023705
collected Apocynum cannabinum W. A. Weber 1948-06-15 Apocynaceae COLO 00022228
collected Asclepias asperula ssp. asperula W. A. Weber 1949-05-06 Apocynaceae COLO 00022798