|Sweetgale - Bluejoint|
|Myrica gale - Calamagrostis canadensis|
|n = 2|
|II.C.2.j Sweetgale Graminoid Bog|
|Ecosystem: Tidal / Relict Drainageway|
This type has been well described for Alaska, and is found in Chugach National Forest (DeVelice, et. al., 1999).
Sweetgale (Myrica gale) - Bluejoint grass (Calamagrostis canadensis) is a variable type on the Kenai Lowlands. Two of the (Carex ramenskii) lawn; landward, white spruce (Picea glauca) and water horsetail (Equisetum fluviatile) dominate.
Two additional sweetgale / bluejoint stands were encountered near Nikiski in disturbed areas. The fifth plot is along a drying Relict Glacial Drainageway at the northern edge of the large Relict Glacial Lakebed complex north of the Kenai airport. That complex may be drying due to climate change, drainage associated with the airport, or a combination of each. All five sites are associated with some form of disturbance.
The sixth site is located near Anchor Point in an unusual landscape position on a large peatland complex between two streams and below a small forested terrace riser.
Where wet, on the marine terrace, thick sweetgale, about 1 meter tall, is more or less uniformly mixed with a moderately open stand of bluejoint. Few other plants are present, but marsh fivefinger (Comarum palustre) as well as small amounts of dwarf birch (Betula nana At the drier site north of the Kenai Airport, the sweetgale is more sparsely distributed, and of lower stature.
Table 1. Summary of plant frequency and average cover for plants occurring
in the two marine terrace plots .
|Wetland Indicator Status|
|Betula nana||0.8||4.6||FAC||FAC, OBL
|Vaccinium uliginosum||0.5||3.7||FAC||FACU+, FACW|
|Calamagrostis canadensis||1.0||35.8||FAC||FAC, OBL
|np- not present on the wetland indicator status list|
|1 Plant with known morphological adaptation for occurrence in wetlands (USACE, 1987)|
|2 Plant with known physiological adaptation for occurrence in wetlands (USACE, 1987)|
|Contact: Mike Gracz Kenai Watershed Forum PO Box 15301 Fritz Creek, AK 99603 907-235-2218||
Alaska Natural Heritage Program
and Natural Resource Institute
707 A Street, Suite 101
Anchorage, Alaska 99501
04 May 2007 09:50