– Argentina egedii
|n = 1|
|III.A.3.h. Halophytic Grass Wet Meadow|
Cicumpolar reedgrass - Pacific silverweed has not been described for Alaska, although it fits well into Viereck, et. al.’s (1992) “Halophytic Grass Wet Meadow” class.
The single circumpolar reedgrass (Calamagrostis deschampsioides) – pacific silverweed (Argentina egedii) site visited, and perhaps the only one on the lowlands, occurs along Bridge Access Road in Kenai, at the edge of tidal influence, at the mouth of the Kenai River.
Circumpolar reedgrass, along with Lyngbye’s sedge (Carex lyngbyei) overtops an open pacific silverweed groundcover. Arctic daisy (Dendranthema arcticum), beach lovage (Ligusticum scoticum), largeflower speargrass, (Poa eminens) and seaside arrowgrass (Triglochin maritimum) along with a few other herbs, are scattered throughout the site.
The water table was 15 centimeters below the surface. A 26 cm thick buried organic layer lies below tidally
deposited silt. The western Kenai
during the 1964 earthquake and then probably rebounded some (Combellick,
1997), so this type may
be seral. Only the highest tides of
the year, and storm surges, flood the area. The pH was measured at nearly
neutral (6.4). This is a
Table 1. Summary of plant frequency and average cover for plants occurring
in more than 50% of plots .
|Wetland Indicator Status|
|Moehringia lateriflora||1.0||0.5||FAC||UPL, FAC
|Galium trifidum||1.0||0.5||FACU||FACU, FAC
|np- not present on the wetland indicator status list.|
|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 09:37