Herbarium specimen of C. grandiflora from India deposited at the Royal Botanic Gardens Kew (Herb K), collected in 1804 and originally identified as a species of Echites or Apocynacum; making it the earliest recorded collection of the genus Cryptostegia.

  Part of: Seier MK, Rapini A, Pollard KM, Barreto RW, Evans HC (2023) Tracing the origins and tracking the movements of invasive rubber vines (Cryptostegia spp., Apocynaceae). NeoBiota 89: 95-133. https://doi.org/10.3897/neobiota.89.109180