Plant ID forum→At loss on this one

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Name: Gina
Florida (Zone 9a)
Tropical plant collector 35 years
Region: Florida Tropicals Aroids
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Gina1960
Aug 3, 2021 7:56 AM CST
I just got this plant from my local very cool Ecuadorean nursery. It was listed as 'Copstus sanguineus'. At first, I thought that there had simply misspelled COSTUS and that this was the Costus sanguineus ginger (I have one). But on looking at the plant, I realized its not a ginger. The blooms in the photos they showed are basilar, blue/purple, 3 petals, with filamentous edges. They also had it listed as a member of the family Marantaceae.

So I started looking...I cannot find ANY genus 'COPSTUS'. In Marantas, or anywhere else. And I looked at a tom of Marantaceae photos from many different true geniuses and could not find a match

So my second thought was that perhaps COPSTUS is a newly described genus. Or, a very OLD genus name that is no longer used. But either should show up in a search.

Does anyone know what this is? Its not in bloom, but if you Google it the only entry that comes up is the place I got it from


Thumb of 2021-08-03/Gina1960/6168aa


Thumb of 2021-08-03/Gina1960/e06251

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Name: Tiffany purpleinopp
Opp, AL 🌵🌷⚘🌹🌻 (Zone 8b)
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purpleinopp
Aug 3, 2021 9:18 AM CST
Are you able to add a pic of the stems?
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Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

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plantladylin
Aug 3, 2021 12:55 PM CST
I've been googling and found something with a similar looking bloom in the Commelinaceae family but the leaves don't match. Geogenanthus ciliatus from Ecuador: https://www.flickr.com/photos/...
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Name: Dillard Haley
Augusta Georgia (Zone 8a)
Garden Ideas: Master Level Avid Green Pages Reviewer Celebrating Gardening: 2015
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farmerdill
Aug 3, 2021 1:28 PM CST
Maybe a misspelling? Costus http://www.gingersrus.com/Data...
Name: Gina
Florida (Zone 9a)
Tropical plant collector 35 years
Region: Florida Tropicals Aroids
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Gina1960
Aug 3, 2021 1:31 PM CST
plantladylin said:I've been googling and found something with a similar looking bloom in the Commelinaceae family but the leaves don't match. Geogenanthus ciliatus from Ecuador: https://www.flickr.com/photos/...


Funny you should say this Lin! I sent a query to Dr. Alistair Hay, former curator of the Royal Botanical Gardens, and he said it is definitely a member of the Commelinaceae but did not know which one. So he put he in touch with an expert on that family. I hope to have an ID soon!
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Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge Garden Procrastinator
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plantladylin
Aug 3, 2021 1:45 PM CST
I love those leaves and my first thought was possibly something in the Gesneriad family but then I came across Commelinaceae that looked similar. Keep me posted, I'm really curious!
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


Name: Tiffany purpleinopp
Opp, AL 🌵🌷⚘🌹🌻 (Zone 8b)
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purpleinopp
Aug 3, 2021 1:54 PM CST
Me too, would love to see the stems. Something in Tinantia or Aneilema seems promising.
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Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge Garden Procrastinator
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plantladylin
Aug 3, 2021 2:48 PM CST
I looked through a lot of Tinantia photos but got sidetracked with adding what info to the database I could find for T. erecta and I saw a few pic's when googling of Aneilema but none with purple flowers that looked like Eucagenera's bloom photo. I also don't see a resemblance of the leaves of Gina's plant to those in Eucagenera's photos of the plant they list as "Copstus"/Copstus sanguineus. Blinking https://www.ecuagenera.com/Cop...
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


Name: Tiffany purpleinopp
Opp, AL 🌵🌷⚘🌹🌻 (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Tropicals
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purpleinopp
Aug 3, 2021 2:52 PM CST
LOL, Lin! I was on the same site at one point too!
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☕👓 The only way to succeed is to try.
Name: Gina
Florida (Zone 9a)
Tropical plant collector 35 years
Region: Florida Tropicals Aroids
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Gina1960
Aug 3, 2021 4:39 PM CST
plantladylin said:I looked through a lot of Tinantia photos but got sidetracked with adding what info to the database I could find for T. erecta and I saw a few pic's when googling of Aneilema but none with purple flowers that looked like Eucagenera's bloom photo. I also don't see a resemblance of the leaves of Gina's plant to those in Eucagenera's photos of the plant they list as "Copstus"/Copstus sanguineus. Blinking https://www.ecuagenera.com/Cop...


That isn't the same plant. Look on the website for EcuageraUSA not Ecuador. I got the one labeled 'mini'
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Name: Gina
Florida (Zone 9a)
Tropical plant collector 35 years
Region: Florida Tropicals Aroids
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Gina1960
Aug 3, 2021 4:42 PM CST
The flowers look like Cyanotis. But none of the Cyanotis leaves match.
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Name: Gina
Florida (Zone 9a)
Tropical plant collector 35 years
Region: Florida Tropicals Aroids
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Gina1960
Aug 3, 2021 4:49 PM CST
I think I found the correct genus...I think its a Geogenanthus. Ecuagenera has one on their site called 'sp. TAISHA' which is not the one I have...this one must be a different one
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Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge Garden Procrastinator
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plantladylin
Aug 3, 2021 5:26 PM CST
I see two listings at Ecuagenera, one they have listed as Geogenanthus sp. Taisha and they have another listing for a Rodospatha sp. Taisha - neither with photos. Geogenanthus is in genus Commelinaceae and I could not find any plant with the spelling Rodospatha so I think Eucagenera must have trouble in translation. There is an Aroid plant spelled Rhodospatha. Blinking

According to the Catalogue of Life, there are 3 species of Geogenanthus:
G. ciliatus
G. poeppigii
G. rhizanthus

I googled for photos of those three species but found nothing similar to the plant in your photo. Confused
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


Name: Gina
Florida (Zone 9a)
Tropical plant collector 35 years
Region: Florida Tropicals Aroids
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Gina1960
Aug 3, 2021 7:21 PM CST
Probably another case of mislabeling. The expert said when I get a bloom to send him a photo. Until then, I guess its an unknown LOL
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Name: Gina
Florida (Zone 9a)
Tropical plant collector 35 years
Region: Florida Tropicals Aroids
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Gina1960
Aug 3, 2021 7:24 PM CST
Yeah Rhodospatha is an aroid, and it comes from Ecuador and Peru and that area...so it makes sense they might have some of those. I have never actually seen a live Rhodospatha. I don't think they are all that common in the US trade
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Name: Tiffany purpleinopp
Opp, AL 🌵🌷⚘🌹🌻 (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Tropicals
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purpleinopp
Aug 3, 2021 8:00 PM CST
It's cute, whatever it is. I can see what it appealed to you.
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The best time to plant a tree is 20 years ago. The 2nd best time is now.
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Central Florida (Zone 10a)
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Wildbloomers
Aug 3, 2021 10:55 PM CST
I contacted Ecuagenera and told them that I could not find any online record of this genus even as a synonym and that its flowers didn't look like any of the genera in the Marantaceae family and could they direct me to the publication of the genus Copstus. This is their reply.
Thumb of 2021-08-04/Wildbloomers/506e71
With any luck a description will be published and you'll be the first to own a delightful new genus or one of our amateur sleuths will track it down in the Commelinaceae and you'll have a new species that we all envy. Just as an aside when I first saw the pictures it reminded me of 'Blue Ginger' (dichorisandra) accept for the flowers at the wrong spot. Other than the confusion over what it might be it's a great find.
Be kind, we all struggle sometimes.
Name: Sue
Ontario, Canada (Zone 4b)
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sooby
Aug 4, 2021 3:58 AM CST
That doesn't make much sense to me, how could they be already selling a plant so unusual it has not even been formally described yet, assuming that's what they mean by "registered". Unless perhaps it is a hybrid they've created between two different genera.
Name: Gina
Florida (Zone 9a)
Tropical plant collector 35 years
Region: Florida Tropicals Aroids
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Gina1960
Aug 4, 2021 6:17 AM CST
@sooby, Ecuagenera sells many many undescribed species and hybrids. Generally, the will label them 'aff' (meaning 'has an affinity to) of 'like', or give them a number as in Gymnopus 1, Angamarcanum 2, etc. They grow most of their plants on large growing operations that are actually in the edges of the jungle, and there are many plants that have simply not been described yet. Dr. Thomas Croat and many other botanists have been there, Dr. Croat most recently in 2019, where he documented and collected several species of aroids to bring back for scientific description. They also do hybridize plants, and grow many from seed. When you buy from them, part of the allure is that you may be getting a new, undescribed species
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Name: Sue
Ontario, Canada (Zone 4b)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Aug 4, 2021 6:28 AM CST
Gina1960 said: When you buy from them, part of the allure is that you may be getting a new, undescribed species


Presumably, then, if the genus and specific epithet they have sold it under is not accepted, you have to figure out what it is some time later?

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