Tuesday, July 08, 2008

Eulophia graminea orchids of Asia found in Florida

A slight, delicate orchid with a penchant for travel is popping up in Miami-Dade County in disturbed and abandoned lots as well as in manicured and mulched garden beds. It is unbidden, not a native, and seems to be finding its way to new areas hither and yon.
Tracking down its identity has been a venture worthy of Inspector Clouseau, and finding the pollinator continues to be a scientific Tropic Hunt based on some cool clues and little-known facts. Much about it still mystifies.
Its one-inch flowers are mostly green, although the lip is white and pink. The leaves occasionally appear after the flower stalk. It grows in the ground, and when small, it has a roundish bulb that resembles a houseplant called the pregnant onion.
Because it's being spotted in locations miles apart, questions are buzzing: Why is this plant becoming comfortable in South Florida?
''It's an exciting botanical mystery. Where did it come from? And is it going to be a problem?'' said Suzanne Koptur, an ecologist at Florida International University. ``It's a very tough, strong orchid that seems to pop up from very small seeds that find what they need in that cypress mulch.''
Will it be like the African monk orchid, Oeceoclades maculata, which once made the list of invasive plants compiled by the Florida Exotic Pest Plant Council? That orchid has moved into all seven counties south of Lake Okeechobee, although it has been removed from the FEPPC's list of bad plants. Or will it be a harmless lounge-about like the lawn orchid Zeuxine strateumatica?
The monk orchid might displace native seedlings of tropical hardwoods, rare ferns, wildflowers of shady hammocks ''and even things like the wild coco, another native orchid, Eulophia alta ,'' Koptur said. Or, the monk orchid might be totally harmless. Experts disagree.
The new Eulophia orchid was first noticed last year by one of Koptur's neighbors, Harvey Bernstein, who found it growing in the mulch beds around his succulent collection. Bernstein is a plant curator at Fairchild Tropical Botanic Garden and more likely to spot an unusual specimen than most people.
When he didn't recognize the plant, he took it to Koptur, but she didn't recognize it, either.
It worked its way through several orchid growers until, finally, Bob Pemberton, a research associate with Fairchild, solved the name-that-orchid mystery.
The little orchid is Eulophia graminea. It hails from Southeast Asia, Burma and subtropical islands of the Pacific. It has become naturalized in northern Australia, and now, as if by magic, it is in the Redland, Miami Dade College's North Campus, Little River, South Miami and even in a parking lot on Virginia Key.
Until you get the hang of spotting them, young plants are slight enough to remain overlooked. The first rule of science: Be a good observer.
In Miami's Palm Grove neighborhood, just west of Belle Meade, orchid fancier Don Wallstedt found many eulophias growing in rocky soil in two empty lots.
''I saw these little flowers and knew it was an orchid but didn't know what kind,'' he said. ``I looked in Wild Orchids of Florida, which has every orchid that's ever been seen in Florida, and knew I had something unique.''
With the identity secured, the orchid sleuths turned to the next question: How did it get here?
There are Internet dealers. Pemberton found several of the plants for sale on eBay, as well as a Thai source offering the bulbs and even a source in Scotland offering plants. So it could have escaped from someone's local collection and made a beeline for the nearest mulch pile.
Its dust-like seeds may have been carried on the wind.

URL : http://www.miamiherald.com/457/story/594330.html

Enjoy,
Steve Peralta
1888Orchids.com

18 comments:

Anonymous said...

I just returned froma 5 weekvacation and noticed a "new" plant in my garden. Iinitially thought my house sitter placed it there, but now believe it may be a Eulophia graminea. This is in Broward County east of US 1.

Heatheriavh said...

I just returned froma 5 weekvacation and noticed a "new" plant in my garden. Iinitially thought my house sitter placed it there, but now believe it may be a Eulophia graminea. This is in Broward County east of US 1.

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Anonymous said...

New here. My friend was complaining about bulbs growing wild in his yard. After researching turns out to be these orchids. He has so many growing in his lawn. I dug up a couple and planted in a pot not knowing what kind of orchid they were. Located near Robert is Here in the Redlands. Growing wild.

Melissa said...

I bought one bulb on Ebay last year. I just repotted it today because it's rotting.(Too much soil in the mix i'm thinking).... And 6 hrs. later I just found 5 huge bulbs with flowers growing out of a rotting wood boat 50 feet away!! I pulled them out and potted them up with orchid mix and spaghnum. I live in Marathon,Fl...the Keys

Melissa said...

Found them 6/21/15

Anonymous said...

These Eulophia graminea are popping up all over our front yard (Boca Raton). I think they came w/ the mulch we put down a few months ago.

Anonymous said...

Found them all over my mulched flower beds. Mulched beds late spring. Live east of US 1 in BOCA Raton

Lin said...

just found them in my mulched flower bed. searched online and now I know they are EULOPHIA GRAMINEA. I live in Parkland.

Unknown said...

just found one in my front yard, just north of liberty city, in northwest miami! found it while weeding & then got excited thinking it might be some cool native orchid - turns out it's not native - should i pull it? or leave it?

Anonymous said...

I live in West Palm Beach east of 95 and found one growing in the mulch near my succulent garden. I researched and found it to be Eulophia Graminea.

Unknown said...

Found what I thought was an onion-I had planted onions in the garden at some point in the past- but was puzzled when it got larger and did not conform to onion standards. The bulb was in my pineapple and perennial herb, box garden. It got larger, about a 7-8" diameter and then a bunch of smaller "friends" popped up around it. Finally did some research and have concluded it is Eulophia Graminea. I can only assume it hitchhiked in with the No Float cypress mulch that I bought at the Home Depot as it is the only mulch I use in my garden and yard. I dug them up to move them out of the garden to another area (figure I can dispose of them later after further observation) and found several other bulbs that I have apparently been mowing over as they were also in a cypress-mulched, lawn/perimeter area. These things are tough-not a good sign if they become invasive-best to rendition them to the landfill IMHO.

Unknown said...

BTW-Im in zipcode 33467, zone 10B

Anonymous said...

Found flowering on Loop Rd., off rt 41, March 29th, 2017
It was growing on tree, about 20 inches off the ground.
Very dry.

Unknown said...

Hi, just wanted to know that I live in Port St. Lucie Florida and I have them all over my garden. I just found out what they were April 2019. Just wanted to share. Apparently they are making their way north in Florida.

Anonymous said...

very invasive, please destroy them all!