Aristolochia of the World

Hello and Welcome to my homepage !

Bizarre plants have been fascinating me for more than 10 years. The genus




is distributed across 6 continents and has evolved in an astonishing variability of flowers, habits and sizes.


Here I will present various species from all around the world as well as my personal collection supplying them with trivia, cultivation hints and many more amazing infos.


I have assembled the generic subtaxa according to the current taxonomic classification into the three subfamilies Aristolochia, Pararistolochia and Siphisia.


The portraits and subpages will be updated regularly as new species or saplings flower and photos can be presented.


For other enthusiastic Aristolochia growers interested in exchange, please follow the link to the exchange corner and/or fill in this contact form.


Dive in and enjoy the peculiar world of the birthworts!


I'm open to any questions, recommendations and corrections. The webpage is under continuous construction and will be supplemented with new infos regularly!

Aristolochia (genus)

The genus Aristolochia consists of a labyrinth of subgenera, sections, series and species' complexes evolved in a long evolutionary history.

Due do radiation, extinction, new diversification and hybridization these plants have conquered almost every spot in the world except for the Arctic regions, occupying extremely diverse habitats and displaying a huge variability of flowers, habits and sizes.


From herbs no more than 10 cm in diameter across scramblers, lithophytes, shrubs, trees to tropical climbers and lianas reaching dozens of metres into the canopy - Aristolochia have to offer something to amaze everybody!


Although being so variable and scattered around the globe all species share one distinctive floral feature which is the typical pitcher trap. Considering this as a stable characteristic it appears reasonable to group them as a single world-wide genus instead of splitting them up into several smaller genera.


Nevertheless it is truly essential recognizing the different subfamilies, sections, etc. when it comes to keeping these plants in cultivation: As mentioned previously Aristolochia have adapted to so many different habitats it is indispensable noticing their origin/subgenera since there is no general formula applying to all species for a successful cultivation.


A generalized outline of the most important infrageneric subtaxa is provided here:



Another major update: one more Gymnolobus species Aristolochia triangularis, two interesting Gymnolobus hybrids Aristolochia x [cymbifera x cf. ringens] and A. [galeata x cf. pohliana] and a total of four new profiles of subgenus Siphisia: Aristolochia palmata, A. shimadae, A. tanzawana and the amazing A. panamensis.


Three more for today: Aristolochia gibertii, A. tamnifolia and the odd cauliflorous Aristolochia schippii.


First update for 2020 and a number of new species profiles: Aristolochia bracteolata and A. steupii from section Diplolobus and Aristolochia erecta, A. paulistana and A. pohliana of section Gymnolobus.


Spring has arrived! Three new flowers (Aristolochia guichardii, A. hirta & A. iberica) and several more profile updates.


Finally the homepage is complete depicting all the species having flowered until 2018 - with Aristolochia macroura, A. odora, A. odoratissima and an unidentifiable A. sp. from Siargao Island (PH). Ready for the new season!


One larger update to close the year 2018 - Aristolochia chilensis, A. coryi, A. lindneri and A. trilobata.


A number of updates on the main page plus important informations on  toxicity and precaution under cultivation conditions as well as pollination biology.


Aristolochia sempervirens profile added to Diplolobus section.


Update in subgenus Siphisia, section Hexodon! Aristolochia pahsienshanensis.


Quite a number of updates and new species profiles in sect. Diplolobus - A. bodamae, A. clematitis, A. pistolochia and A. rotunda.
Aristolochia californica can be found within sect. Siphisia.


Close-ups of two closely related species from the Iberian peninsula

- A. paucinervis and A. castellana - as well as dubious specimens that may represent hybrids 'A. cf. pallida x rotunda


Another species of the pallida-complex, Aristolochia lutea.


New species profiles - A. pallida and the astounding A. microstoma.


New website layout and better structure according to current taxonomy in order to provide easy access to all subpages.


Two Asian species, A. onoei and A. mollissima have flowered for the first time.


homepage online!