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cool season perennial grassy weed in NJ

1.2K views 2 replies 2 participants last post by  TheyCallMeChris  
#1 ·
This plant has driven me down a giant rabbit hole and is making me insane. Please help. I recently learned some of the proper grass plant ID features and still am unable to identify this nuisance plant. I'm not 100% sure that it's not just some type of awful turfgrass, but I find it offensive and I want it all dead. At some point I was fairly convinced it was rye, then Triv after reading a thread on here from 2020? However I am no longer convinced since I potted a few up to allow them to grow out some seed heads. Here are the attributes I am seeing:

Leaves:
-Dark green in color (not a bad thing)
-glossy/waxy underside of leaves
-veins down the length of the leaf blade and I believe it constitutes a visible midrib unless that is just the folded center sort of form of the leaf and not considered a midrib. It's not a broad midrib like KBG, but there's a clear line down the center from where it was folded
-folded vernation (crease persists but a cross sectional slice was taken with fresh razor to confirm.
-keeled/boat-tail tips
-larger leaves off tillers can be upto 4-4.5mm in width at the stem reaching 4-4.5" in length with 3-4" spacing between leaves
-tough leaves and stalks fray no matter how sharp rotary mower blade is, requires reel mowing to look less terrible/obvious
-no visible hairs.

Seed head: spike or sort of quack grass like? That may just be spike.

-perennial
-tillers? have thick terrible feeling stalks when growing upright.
-in spring the stalks were visibly reddened on the upper sides with extensively lateral growth.
-believed to be bunch type. no rhizome spread found after searching somewhat extensively, but possible stoloniferous spread.

-membranous ligule, I believe it is considered short.

-auricle: I'm unsure but definitely not very-clasping? If you put a gun to my head I would have to go with Absent.

-Grows bulging nodes along the seed spikes like little node elbows. Not sure if that's important or helpful.



Please help me LawnForum, you're my only hope (for sanity)
 
#2 ·
I'm sure, that this is PRG. Everything matches, only the auricles represent an uncertainty. In a german book I read (translated): "Two sickle-shaped leaf auricles encircling the stalk, or these inconspicuous to absent." So it's also possible that PRG doesn't show auricles. It might depend on the variety, or it might be the wild form of PRG.
 
#3 ·
2L8 said:
I'm sure, that this is PRG. Everything matches, only the auricles represent an uncertainty. In a german book I read (translated): "Two sickle-shaped leaf auricles encircling the stalk, or these inconspicuous to absent." So it's also possible that PRG doesn't show auricles. It might depend on the variety, or it might be the wild form of PRG.
I was convinced it was rye but then I was told by someone maybe on Reddit something along the lines of "there's no way that's rye" plus I can't understand why people would plant this bristly stalky terrible grass! Many others suggested an alternate darker variety of poa Trivialis but I've seen a normal triv plant and it didn't look like this. I think you may be correct and this brings me some peace. Thank you