kfdoyle's Identifications

Very large population of 900-1000 stems found in a recently logged area. C cumulata were found in the saturated portion of the area, the drier portions had C adusta.

A concentrated population of about 600 stems was found in a 30' x 12' area of sphagnum moss, Scirpus cyperinus, Rubus hispidus, red maple, birch and tamarack. First time I've seen tamarack with this sedge.

Other clumps were growing with cinnamon fern, Carex debilis, Rubus hispidus, Scirpus cyperinus, Juncus tenuis, and red maple.

7-20-2024 update:
Found 1000 more sedges, in a 150' x 250' area, growing in a logged off area a quarter mile to the east.

Associated species include Scirpus cyperinus, Juncus tenuis, C debilis, C intumescens, Rhynchospora capitellata, Rubus hispidus, red maple, huckleberry, sphagnum moss, and, for the first time, leatherleaf.

Area was logged off very recently. Two clumps were found. One clump appeared to have just recently sprouted was found in a very wet area. It looked like other new sedges were sprouting as well. The other clump was found along a logging road and was very mature.

Associated species with the first clump were C. brunnescens and Persicaria amphibia.

Associated species with the second one were C. debilis, Juncus tenuis, and red maple. Smartweed and burnweed were also present.

I believe the population of C cumulata will explode next year.

Found population of 300 in a recently logged area.

About 60 were found along the disturbed entrance. Associated species included Scirpus cyperinus, Rubus hispidus, C debilis, huckleberry, bracken fern, Rhynchospora capitellata, Lysimachia quadrifolia, and red maple.

240 were found in wet area with sphagnum moss, leatherleaf, Juncus effusus, and Scirpus cyperinus.

It appears that jack pine was harvested and maybe some white pine and red maple.

Picture 6 shows a sedge with one of the longest bracts I've seen on C cumulata!

Area was logged a few years ago. Two clumps were found on a level area on a south facing slope.
Soil sandy, dry to mesic moisture. Open cover.
Associated species included Rubus idaeus, bracken fern, Carex pen, Dichan sp, white pine.

Area was logged early last year. I looked here later that year and didn't find any. This year scattered clumps were found. Most were along a skidder track.
Because of recent rains, the whole area was very wet, with standing water in some places. One clump was in ponded depression.
Soil sandy, mostly open cover. A few large white pines were left standing.
Associated species included Carex adusta, which was the dominant herbaceous species. Also found were Carex debilis, Scirpus cyperinus, Dichanthelium sp, Acer rubrum, white pine, Carex lurida, and Juncus effusus.
There is an ATV trail that runs through the cutoff area but there was no evidence that ATVs were going off the trail.

Area was logged recently. It gently slopes to the south. Most were found along a skidder trail along the lower elevations.
Open cover.
Associated species include Carex intumescens, Rubus hispidus, red maple, white pine, C. adusta, C. brunnescens, Scirpus cyperinus, C. scoparia, Cinnamon fern, C debilis

Known sub pop. 38 total (includes 12 in flower).

North group:
Main cluster with 10 (including 3 in flower).
2 additional non-flowering clumps towards SSW a meter plus.
1 flowering NNE 2.25m from center north (1.25 from edge) along with 3 non flowering within 0.75 m to west

1 non flowering east of main cluster ~1.25m

14 total in this grouping (4 in F)

Center group: 5 (including 2 in flower)
2 nf clumps additional towards west and southwest by 0.7m.
1 nf west of group 1.2m.

7 total in this center grouping (2 in F).

Single 1 between the south and middle grouping (previously covered by brush two years back) in bud

South group:

• 12 (including 5 in flower) in a 1.75m E/W by <1 m N/S area.
• 3 additional NF to north. 1.3m with m spread east to west.

• 1 flowering existing towards ENW 1.5m.
  16 total in this south grouping (6 in F).

8 flowering (3F at pt 231)
1 NF by pt 230
Above were in the known area from last year.

SILTER, MONFIS, ZIZAUR, SILINT, liatris sp. , PRUVUL, big blustem, RUDHIR, DESCAN, PEDCAN, aster spp. , gl goldenrod, ASTOLA, gentian sp. , LESCAP, COMUMB, KRIBIF, panicum sp. spiderwort, FRAVIR, v m mint, galium sp. SOLCAN, Cuscuta sp. , ALLCAN.
DOCMEA
POPTRE, FRAALN. 5% under 1m.

CIRARV (in areas), yarrow, ASPOFF

NEW area of 3 in flower at the now southern end of population where two trees had been girdled that previously caused heavy shade.
The western edge of the population has increased several meters to the west with a new location of 1 flowering individual located adjacent to a previously girdled cherry tree (which would have been heavy shade prior to two years ago).

12 total in flower and one non-flowering clump or 2024. (Only 1 flowering observed two years ago prior to brush clearing.)

2023 info for this population found here:
https://www.inaturalist.org/observations/187561701
In the growing season of 2023, vegetation was still recovering from previous shade (not as dense) making the non-flowering clumps at that time easier to locate. Higher vegetation density exists now in 2024 making locating non-flowering clumps more difficult.

Population of about 500 fruiting stems found in low spot in a mostly upland area that had been logged recently. A smaller population was found about 135 ft to the SW in another low spot. Only 14 fruiting stems were found there, but it appeared that some juveniles were present.

Besides being logged, furrows had been cut every ten feet, probably in preparation for it being replanted.

Soil sandy, standing water in the furrows. The two spots with standing water were the only places where I found the sedge.

Associated species were Rubus hispidus, cinnamon fern, and Lysimachia quadrifolia. On the higher areas, more upland plants were seen such as Carex pensylvanica and black oak.

This is the most concentrated population of C. cumulata that I have ever seen.

Two widely spaced clumps were found in a recently logged area. One clump had 8 fruiting stems and 10 other stems. The other had 5 fruiting stems and 10 others. The logged area was becoming overgrown again but the clumps were found in two low areas that were more open. The first clump was in a very wet area with cinnamon fern, Rubus hispidus, Scirpus cyperinus, sphagnum moss, Lysimachia quadrifolia, red maple, white pine, and club-spur orchid! First time I've seen that orchid with the sedge.

The second clump was found in a less wet location with blueberry, bracken fern, Carex intumescens, red maple, black oak, and white pine.

Two other clumps with a total of 13 fruiting stems were found in an open area along the road leading to the logged area. Associated species were Rubus hispidus, Juncus tenuis, bracken fern, Carex scoparia, and C pensylvanica.

Area was recently logged. Various clumps were found totaling about 200 fruiting stems. There are probably many more throughout the area.
Some were found in a mesic/wet-mesic area with Calamagrostis canadensis, Rubus hispidus, Lysimachia quadrifolia, Danthonia spicata, red maple back oak, and Frangula alnus. I think this is the first time I've seen this invasive with C cumulata.
Others were found along a drainage swale with C debilis, cinnamon fern, Spiraea tomentosa, red maple, black oak, and Frangula alnus. There were also large white pines throughout the logged area.