Stapeliads (refreshed)
By John Pilbeam
Massive photo gallery and collector-grade notes. Essential reference energy.
Open resource
Curated vault
Books, links, and dangerous knowledge.
The good stuff. Not the basics.
By John Pilbeam
Massive photo gallery and collector-grade notes. Essential reference energy.
Open resource
By Peter V Bruyns
Deep dive into stapeliads. Not beginner friendly.
Open resource
By Urs Eggli
2002 hardcover, in German. Eagerly awaited by botanists and collectors; Volume 3 focuses on Asclepidaceae.
Open resource
https://www.asclepiad-international.com/index-2.html
Historic IAS archive with publications and old-school asclep knowledge.
Open resource
https://www.llifle.com/
Weird, niche, and surprisingly useful for quick references.
Open resource
https://www.worldfloraonline.org/
Taxonomy checks when naming debates get spicy.
Open resource