I was dismayed to see how many plants of this non-native species were here this year.
I found this species only in this one spot. The last two pix show how much smaller the corolla is for these plants than that of C. intermedia.
Ponderosa Nature Trail, San Bernardino National Forest, San Bernardino Mountains, San Bernardino County, California
Note that the awn hairs become "gradually and evenly shorter" from the lemma tip toward the first bend in the awn (var. pubescens) and are not of "mixed lengths" throughout (var. californica).
Confirmed by prior rare plant survey data and from botanical specialist during survey
One of the two wettest spots along the road system at the top of Baldy Mountain.
Observations:
Rhizomed perennial.
Stem 31 cm tall, 1.5 mm wide.
Infl 10 x 3 mm, with ~31 fl bracts. Infl bract (single one at bottom of infl) 1.8 mm, membranous.
Fl scales dark brown, 3.0 to 3.5 mm long x 1.0 mm wide, not wrinkled, not recurved. Scales in lower half of spikelet acute tipped.
Anthers 2, 2.0 mm, mucronate.
~6 bristles surrounding ovary, from 1.6 to 4.0 mm long.
Ovary with a "cap".
Stigmas 3.
This keys to E. parishii in the Jepson Manual key, on the shape of the flower bract tips, and the lack of them being transversely wrinkled and recurved.
These plants fit the Jepson Manual description except that the stem with is not "0.2 to 1.0 mm", which is less serious than the disagreements with E. montevidensis.
See also the nearby plants from the other wettest areas
The view of the entire plants shows typical C.m. jonesii for all but the most prominent plant in the foreground. Usually, C.m. jonesii has no branches from the base. I suspect the central stem of that plant got damaged, so it produced roughly equal new stems from the base, each of which individually looks like typical C.m. jonesii, with branches only in the upper half of the stem.
Variegated leaves