Plant ID forum: Also Perennial in my neighborhood

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Surprisingly GREEN Pittsburgh (Zone 6a)
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crittergarden
Aug 9, 2014 2:02 PM CST

Thumb of 2014-08-09/crittergarden/8757fc

Same neighbor has this plant from next door seeding itself on her sidewalk
It's needle-y, but soft. And it's only about 6" tall - great groundcover.


Thumb of 2014-08-09/crittergarden/911944

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Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
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KentPfeiffer
Aug 9, 2014 2:18 PM CST

Moderator

It's a spurge of some sort. Might be:

Cypress Spurge (Euphorbia cyparissias)

If so, you should know that it's generally considered to be invasive in North America and is classified as a noxious weed in at least one state (Colorado).
Surprisingly GREEN Pittsburgh (Zone 6a)
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crittergarden
Aug 9, 2014 2:25 PM CST
Interesting.

I have had euphorbia myrsinites, Euphorbia dulcis 'Chameleon', and Euphorbia polychroma 'Bonfire', all of which came to me from other gardeners and DO seed around, but not in an uncontrollable way.

I'm really interested to see which one this one might be.

SHOW ME YOUR CRITTERS! I have a critter page over at Cubits. http://cubits.org/crittergarden/thread/view/73275/
Surprisingly GREEN Pittsburgh (Zone 6a)
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Dog Lover Birds Plant and/or Seed Trader Bulbs Echinacea Irises
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crittergarden
Aug 9, 2014 2:26 PM CST
I might mention it is not only soft, it is almost feather soft.
SHOW ME YOUR CRITTERS! I have a critter page over at Cubits. http://cubits.org/crittergarden/thread/view/73275/
Surprisingly GREEN Pittsburgh (Zone 6a)
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crittergarden
Aug 9, 2014 2:30 PM CST
This is not it: http://www.visoflora.com/photos-nature/photo-euphorbia-cypar...

I didn't see any "bracts" (not sure that's the right word - "collars" would be a layman's word for them) around the flowers. But to be sure, I'd have to walk up there and look again.

And note that those pics were taken today.
My 3 spurges bloom in spring.
SHOW ME YOUR CRITTERS! I have a critter page over at Cubits. http://cubits.org/crittergarden/thread/view/73275/
Name: Lori
Calgary, Alberta, Canada
Plant Identifier
growitall
Aug 9, 2014 7:50 PM CST
crittergarden said:Interesting.

I have had euphorbia myrsinites, Euphorbia dulcis 'Chameleon', and Euphorbia polychroma 'Bonfire', all of which came to me from other gardeners and DO seed around, but not in an uncontrollable way.

I'm really interested to see which one this one might be.


It is what Kent said, unquestionably - Euphorbia cyparissias. It is none of the ones you mention.

The source of its (Euphorbia cyparissias, that is) invasiveness is thin, thready rhizomes that are very difficult to control, since they're fragile. It also seeds very successfully, with seeds being cast some distance from the parent plant (as in many other Euphorbia).

Surprisingly GREEN Pittsburgh (Zone 6a)
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crittergarden
Aug 10, 2014 4:53 AM CST
I guess there may be some little "collars" in my second pic. - hard to see though.

cyparissias would be blooming now?
SHOW ME YOUR CRITTERS! I have a critter page over at Cubits. http://cubits.org/crittergarden/thread/view/73275/
Name: Lori
Calgary, Alberta, Canada
Plant Identifier
growitall
Aug 10, 2014 9:55 AM CST
It normally blooms in spring but plants can re-bloom, needless to say. Alternatively, it may be this year's seedings that bloomed recently. I think you'd be hard-pressed to find any Euphorbia species that lacks the little "collars". Why don't you show a close-up of the flowers? Perhaps they are actually the seeds, which would explain why the "collars" are lacking.

Everything about it fits in terms of appearance and your description, including how it's filled that bed.
Surprisingly GREEN Pittsburgh (Zone 6a)
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crittergarden
Aug 10, 2014 10:17 AM CST
OK.

I was concerned I was "trespassing" with my camera yesterday, although I don't think she would mind, really.

The FIRST picture was from the yard next door to her, and of a well established clump, with buds just opening. That's where her seedlings are coming from.

I'd have to go back (which I will) to check on the "collars".
SHOW ME YOUR CRITTERS! I have a critter page over at Cubits. http://cubits.org/crittergarden/thread/view/73275/
Surprisingly GREEN Pittsburgh (Zone 6a)
Rabbit Keeper Bee Lover Cat Lover Lover of wildlife (Black bear badge) Butterflies Hummingbirder
Dog Lover Birds Plant and/or Seed Trader Bulbs Echinacea Irises
Image
crittergarden
Aug 14, 2014 10:57 AM CST
I didn't have the camera with me Tuesday, but I looked close at the flowers they DID have little collars.
SHOW ME YOUR CRITTERS! I have a critter page over at Cubits. http://cubits.org/crittergarden/thread/view/73275/

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