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Support the Flora of the Southeastern US

2024 has been a banner year for making the best flora we can imagine. We've created:
With financial support from people like you, we are aiming even higher in 2025. Together we can accomplish all this: Vote on our 2025 priorities
  • Add Global Conservation Ranks (GRanks) vote
  • Professional graphic keys (polyclaves) to individual families/genera vote
  • 2 new FloraQuest apps: Florida & Mid-South vote
  • Image overlays highlighting diagnostic characters with arrows vote
  • iNaturalist integration in FloraQuest vote
Write-in vote: vote
We've set a goal of recruiting 200 ongoing supporters to donate $15 or more each month in 2025. Please help us reach this goal and make next year's flora even better:
Donate $15 per month
(0.06¢/key line)
Donate $30 per month
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References

For Asclepias

Endress, M.E., U. Meve, D.J. Middleton, and S. Liede-Schumann. 2018. Apocynaceae. In Kadereit, J., & V. Bittrich. 2018. The families and genera of flowering plants. XV. Flowering plants. Eudicots. Apiales, Gentianales (except Rubiaceae). Springer, Cham. Google Scholar

Farmer, J., and C.R. Bell. 1985. A new combination in Asclepias. Phytologia 57: 380. Google Scholar

Fishbein, M. 2023a. Asclepias. In Flora of North America Editorial Committee. 2023c. Flora of North America north of Mexico. Volume 14, Magnoliophyta: Gentianaceae to Hydroleaceae. Oxford Univ. Press, New York, NY. 505 pp. Google Scholar

Fishbein, M., D. Chuba, C. Ellison, R.J. Mason-Gamer, and S.P. Lynch. 2011. Phylogenetic relationships of Asclepias (Apocynaceae) inferred from non-coding chloroplast DNA sequences. Systematic Bot. 36: 1008-1023. Google Scholar

Turner, B.L. 2009b. Taxonomy of Asclepias hirtella and A. longifolia (Apocynaceae). Phytologia 91: 308-311. Google Scholar

Woodson, R.E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Garden 41: 1-211. Google Scholar