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This is a follow-up to the question posed by @vreinkymov in this post, about whether the roots look different for an infected plant compared to the roots of a non-infected plant:

https://www.inaturalist.org/observations/146921131

They don't appear any different. But I was surprised at how small the root system was compared to the above ground portion. That was perhaps due to extremely wet soil from 15 inches of rain so far this season.

The plants are numbered. #1 and #2 are infected. #3 and #4 are not, as far as I can see. Each photo after the first has only a single plant in it, identified by its number in the first photo.

Also, it appears that a plant can have some infected leaves and some non-infected leaves, as seen in plant #2.

These plants were all growing together, and I dug them all up with one hand-trowel scoop.

There are more infected plants in my yard now after mowing and another rain. So far I've found no infected plants in the as-yet-unmowed portion of my property, but that is consistent with chance since most of my property has been mowed. There are now something like five or six infected small areas widely scattered on my two acres.

Voucher tchester#1289.

I unfortunately didn't take any pix in the field, so these pix are all of my voucher.

Measurements from my voucher:

ann

st: 3.0 dm, including infl

lvs: cauline, 10 cm x 3 mm, flat.

infl: 7.5 cm, ~erect panicle, 3 branches at lowest node, single branches above, with a terminal spikelet.

spikelet 11-18 mm, florets 3

lower glume 7.0 mm, tapered acute tip
upper glume 11.5 mm, including 1.0 mm awn from extension of mid-vein, awn from ~truncate tip

lemma body 12.5 mm, tip 2 toothed plus awn from middle, teeth 1.5-3.0 mm, awn of 12.0 mm, curved away from the teeth and then abruptly bent once to become erect. Some of the awns are twisted near their base!

Can anyone confirm this? Petals don't seem as splayed as they're supposed to be in C. crocea, but that seems like a variable feature. CalFlora definitely shows records from San Simeon State Park. Height was perhaps 15-30 cm off the ground.