Unbelievable Unknown Plants: Rafflesia

Ten Things I Like About... Podcast

Summary: Rafflesia is a flower but not just any ole flower. Join Kiersten as she discusses this highly unusual plant.

For my hearing impaired listeners, a complete transcript of this podcast follows the show notes on Podbean

Show Notes:

“Most of the world’s largest flowers (genus Rafflesia) are now on the brink of extinction,” by Pastor Malabrigo Jr, Adriane B. Tobias, Joko Witono, Sofi Mursidawati, Agus Susatya, Mat Eunuch Siti-Munirah, Adhityo Wicaksono, Reza Raihandhany, Sarah Edwards, and Chris J. Thorogood. https://doi.org/10.1002/ppp3.10431

“Rafflesia arnoldii,” Royal Botanic Gardens, Kew, https://www.kew.org

Music written and performed by Katherine Camp

Transcript

(Piano music plays)

Kiersten - This is Ten Things I Like About…a ten minute, ten episode podcast about unknown or misunderstood wildlife.

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Kiersten - Welcome to Ten Things I Like About… This is a podcast about misunderstood or unknown creatures in nature. Some we’ll find right out side our doors and some are continents away but all are fascinating.

My name is Kiersten and I have a Master’s Degree in Animal Behavior and did my thesis on the breeding behavior of the Tri-colored bat. I was a zookeeper for many years and have worked with all sorts of animals from Aba Aba fish to tigers to ravens to domesticated dogs and so many more in between. Many of those years were spent in education programs and the most important lesson I learned was that the more information someone has about a particular animal the less they fear them. The less they fear them the more they crave information about them and before you know it you’ve become an advocate for that misunderstood animal.

This podcast will focus ten, ten minute episodes on different animals and their amazing characteristics. Please join me on this extraordinary journey, you won’t regret it.

This series will be a bit different from previous ones because we’re going to talk about two unknown species. We’ll delve into two amazing plants that have quite unusual life cycles. This is the first episode of a series focused on unbelievable, unknown plants.

The first plant I’m going to talk about is Rafflesia and the first thing I like about this plant is rafflesia itself. Rafflesia is actually the genus of 42 different species of plants. This genus includes the largest solitary flower in the world. Rafflesia arnoldii grows up to three feet in diameter and can weigh up to 15 lbs. That’s one heck of a big flower!

This is also an amazingly beautiful flower. It has five large, rounded petals. The middle of the flower looks like a bit like a giant salad bowl, but that is just part of the outer petals. If you look at a side view of this flower the outer petals look like the letter Y. Beneath the inner lip of the flower sits the central column where the stamens are located. Almost every species of Rafflesia follows this basic anatomical pattern. Each one has it own distinct details but generally follows this pattern.

All Rafflesia are a red color with white or yellow spots all over. They look like a cartoon version of a flower. Maybe something you see in a Super Mario Brothers video game. The red hue varies by species and one is such a pale pink it almost looks white. The spots also vary is shape from round dots like a polka-dot pattern to round edged rectangles to blotches that have no discernible shape.

All Rafflesia that we currently know of are found in Southeast Asia. This is one of the most plant-rich areas on the planet and Rafflesia are found only here. As I stated before there are 42 species of this amazing plant and since the beginning of the 21 century the species count has doubled from the number described between 1821 and 1984. Thirteen species were described in 1997.

Now I’m not done with the amazing facts about Rafflesia. These flowers are invisible for most of its life cycle, because the main part of the plant lives hidden within another plant. Rafflesia are considered parasitic.

The Oxford Languages Dictionary defines parasite as an organism that lives in or on an organism of another species and benefits by deriving nutrients at the other’s expense. Rafflesia are some of the most amazing parasites on Earth, as far as I’m concerned. We’ll delve more into this topic in a future episode, but the Rafflesia chose vines in the genus Tetrastigma as their host plants.

Island living is the life for Rafflesia. Most of them are found on small island throughout Southeast Asia. Some of them are found on only one island and no where else.

Taxonomy is still disputed about these flowers so classifying them can be a challenge. Beyond classification, we know little about these plants. Why they chose the hosts that they choose, which species are found where, when they will bloom, and some much more. Scientists are still studying these amazing flowers, but time is running out. Many of these flowers habitats are disappearing at a terrifying rate. There may be rafflesia disappearing before scientists even discover them.

We will talk about all these topics in the first half of this series of Unbelievable unknown plants. I’m excited about this one listeners! I picked a great plant to start off with because my first favorite thing about rafflesia is rafflesia.

If you're enjoying this podcast please recommend me to friends and family and take a moment to give me a rating on whatever platform your listening. It will help me reach more listeners and give the animals I talk about an even better chance at change.

So join me next week for another episode about Rafflesia.

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This has been an episode of Ten Things I like About with Kiersten and Company. Original music written and performed by Katherine Camp, piano extraordinaire.