Mystery plant (Lenophyllum texanum - serious pest)

For the discussion of topics related to the conservation, cultivation, propagation and exhibition of cacti & other succulents.
Forum rules
For the discussion of topics related to the conservation, cultivation, propagation and exhibition of cacti & other succulents only.

Please respect all forum members opinions and if you can't make a civil reply, don't reply!
User avatar
ralphrmartin
BCSS Member
Posts: 4696
Joined: 11 Jan 2007
Branch: None
Country: United Kingdom
Role within the BCSS: Member
Location: Pwllheli
Contact:

Mystery plant (Lenophyllum texanum - serious pest)

Post by ralphrmartin » Thu Jun 17, 2021 5:53 pm

I found this growing all by itself in the bottom of one of my trays, which mainly has Crassulaceae in it and a few cacti. Having grown on a bit, it now appears like nothing I have in that tray.

Can anyone ID it, or even make a suggestion? I suppose it could be a hybrid of some sort.

Perhaps I'll have a clearer idea when it flowers.
IMG_20210616_110123.jpg
Last edited by ralphrmartin on Fri Jun 18, 2021 7:47 pm, edited 1 time in total.
Ralph Martin
https://www.rrm.me.uk/Cacti/cacti.html
Members visiting the Llyn Peninsula are welcome to visit my collection.

Swaps and sales at https://www.rrm.me.uk/Cacti/forsale.php

My Field Number Database is at http://www.fieldnos.bcss.org.uk
User avatar
MikeT
BCSS Member
Posts: 1762
Joined: 11 Jan 2007
Branch: SHEFFIELD
Country: UK
Role within the BCSS: Branch Treasurer
Location: Sheffield

Re: Mystery plant

Post by MikeT » Thu Jun 17, 2021 6:42 pm

Lenophyllum?
If it is, easy to introduce as a single leaf hiding in a pot of something else.
Mike T

Sheffield Branch
BCSS member26525
edds
BCSS Member
Posts: 1428
Joined: 09 Dec 2019
Branch: None
Country: United Kingdom
Role within the BCSS: Member

Re: Mystery plant

Post by edds » Thu Jun 17, 2021 6:44 pm

It almost has elements of Lenophyllum, but not quite guttatum.

Sorry Mike you posted that as I was typing!
Ed

BCSS member 53038
David Neville
BCSS Zone Rep
Posts: 138
Joined: 11 Jan 2007
Branch: SOUTHAMPTON
Country: UK
Role within the BCSS: Branch Secretary

Re: Mystery plant

Post by David Neville » Thu Jun 17, 2021 8:01 pm

Yes, no idea of the correct name, but this THING is as bad as Oxalis, and definitely worse than Bryophyllum sp in the glasshouse, and I would recommend urgent removal and eradication. I have found it to be frost hardy in rural Hampshire for at least the last 10 years! DESTROY !!!!
David Neville
Secretary of Southampton & District Branch. BCSS member since 1977.
User avatar
Stuart
BCSS Member
Posts: 1415
Joined: 11 Jan 2007
Branch: BRIGHTON, HOVE & District
Country: England

Re: Mystery plant

Post by Stuart » Thu Jun 17, 2021 9:37 pm

Yes, thoroughly agree with David, it grows on aluminium staging, concrete flooring, anywhere a leaf drops. It's just about indestructible, unaffected by glyphosate sprayed under the staging. Pull a plant out without too much care and it sheds leaves everywhere, the leaves blend in well with top dressing and take some removal if growing at the base of a spiny cactus. I've seen nurseries covered in it! As David said - exterminate.

Stuart
User avatar
MikeT
BCSS Member
Posts: 1762
Joined: 11 Jan 2007
Branch: SHEFFIELD
Country: UK
Role within the BCSS: Branch Treasurer
Location: Sheffield

Re: Mystery plant

Post by MikeT » Fri Jun 18, 2021 7:39 am

I had Lenophyllum texanum at one time. Under the staging it's a straggly, scruffy looking plant. In full sun, it can make quite an attractive, compact, silver coloured specimen.

The International Crassulaceae Network comments about texanum
Note :
In the greenhouse this plant can become very invasive, and nurseries consider it a pest. Leaves and bracts detach and root easily and produce multitudes of new plantlets.


Despte my positive comment about how it can make an attractive plant, I eventually took exactly the approach suggested by Stuart and David. This involved quite a lot of effort, but I did succeed in eradicating it. That was in a 6' x 8' greenhouse. Multiply the effort involved by whatever size greenhouse it's been allowed to spread around.
Last edited by MikeT on Fri Jun 18, 2021 10:44 am, edited 1 time in total.
Mike T

Sheffield Branch
BCSS member26525
User avatar
Pattock
BCSS Member
Posts: 530
Joined: 07 Nov 2020
Branch: MANCHESTER
Country: United Kingdom
Role within the BCSS: Member

Re: Mystery plant

Post by Pattock » Fri Jun 18, 2021 9:14 am

MikeT wrote:
Fri Jun 18, 2021 7:39 am
This involved quite a lot of effort, but I did succeed in eradicating it.
I do appreciate it when "eradicate" is used in line with its etymology, derived from "root out" in Latin.
Asclepiomaniac. Armchair ethnobotanist.
Occasional, eclectic blogger:
http://pattheplants.blogspot.com/
User avatar
ralphrmartin
BCSS Member
Posts: 4696
Joined: 11 Jan 2007
Branch: None
Country: United Kingdom
Role within the BCSS: Member
Location: Pwllheli
Contact:

Re: Mystery plant

Post by ralphrmartin » Fri Jun 18, 2021 7:24 pm

MikeT wrote:
Thu Jun 17, 2021 6:42 pm
Lenophyllum?
Yes, I was reminded of that. I have L. guttatum and L. reflexum, and find neither specially easy to grow.

Perhaps it did come in from elsewhere, but I repot plants as I acquire them, so it is unlikely to have come in unnoticed except as a seed. If so - why would it be in the bottom of the tray? I think its more likely a hybrid of a couple of things I already have, and a ripe seed dropped into the tray.

Edited: forget the above, and read on...
Last edited by ralphrmartin on Fri Jun 18, 2021 7:49 pm, edited 1 time in total.
Ralph Martin
https://www.rrm.me.uk/Cacti/cacti.html
Members visiting the Llyn Peninsula are welcome to visit my collection.

Swaps and sales at https://www.rrm.me.uk/Cacti/forsale.php

My Field Number Database is at http://www.fieldnos.bcss.org.uk
User avatar
ralphrmartin
BCSS Member
Posts: 4696
Joined: 11 Jan 2007
Branch: None
Country: United Kingdom
Role within the BCSS: Member
Location: Pwllheli
Contact:

Re: Mystery plant

Post by ralphrmartin » Fri Jun 18, 2021 7:25 pm

David Neville wrote:
Thu Jun 17, 2021 8:01 pm
Yes, no idea of the correct name, but this THING is as bad as Oxalis, and definitely worse than Bryophyllum sp in the glasshouse, and I would recommend urgent removal and eradication. I have found it to be frost hardy in rural Hampshire for at least the last 10 years! DESTROY !!!!
Gulp. Quarantined, before it can flower. It is in bud...
Ralph Martin
https://www.rrm.me.uk/Cacti/cacti.html
Members visiting the Llyn Peninsula are welcome to visit my collection.

Swaps and sales at https://www.rrm.me.uk/Cacti/forsale.php

My Field Number Database is at http://www.fieldnos.bcss.org.uk
User avatar
ralphrmartin
BCSS Member
Posts: 4696
Joined: 11 Jan 2007
Branch: None
Country: United Kingdom
Role within the BCSS: Member
Location: Pwllheli
Contact:

Re: Mystery plant

Post by ralphrmartin » Fri Jun 18, 2021 7:27 pm

Yes, seems to be Lenophyllum texanum.

Its problem is that the leaves fall of at the slightest touch.
I think I got them all when removing it. :shock:

Thanks for the warning, everyone.
Ralph Martin
https://www.rrm.me.uk/Cacti/cacti.html
Members visiting the Llyn Peninsula are welcome to visit my collection.

Swaps and sales at https://www.rrm.me.uk/Cacti/forsale.php

My Field Number Database is at http://www.fieldnos.bcss.org.uk
Post Reply