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The spathe and spadix of Amorphophallus titanum by Kandis Elliot. What is an Aroid?
Aroid is the common name for members of the Araceae family of plants, sometimes known as the Philodendron or Arum family. The occasionally beautiful and often bizarre combination of spathe and spadix called the inflorescence, sometimes referred to as a "flower", is a distinguishing feature of all aroids.
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Amorphophallus smithsonianus
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$20 gets you four newsletters a year, a journal subscription, and access to much, much more. All while supporting Aroid research and education.

2023 IAS Show & Sale

The 46th annual IAS Show & Sale will be held this year on September 16th - 17th at Fairchild Tropical Botanic Garden. Dinner, Drinks, & Auction tickets are now SOLD OUT. This year will be our biggest yet! For more details click here.

General Membership Meeting Presentation - December 4, 2022

On December 24, 2022, the IAS held its first ever online general membership meeting including a presentation by board member Franco Urban giving a tour of his massive terrarium. Members may view a video of the meeting and one of the presentation by clicking here

Membership Fees

You may have read that the IAS plans to discontinue offering a printed version of our quarterly newsletter. The next edition of the newsletter will be published in January and will be available online .

Membership fees have dropped to $20 annually for individual members and $25 for institution/library subscriptions.


Aroideana 46(3)

The latest edition of Aroideana 46(3) is now available for all active members. Access this plus past available issues by clicking here.

Our entire collection of back issues is now available online, back to Volume 1, Number 1, May 1978.

Newsletter 45(4)

The latest edition of the IAS Newsletter 45(4) is now available for all active members. Access this plus past available issues by clicking here.


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