Appendix F Detailed Cover Type Tables - USDA Rural Development

Bemidji – Grand Rapids
Biological Assessment and Evaluation
due to human and beaver activity and development, excessive browse by deer, cattle or insects and
competition from invasive shrub species (Rhamnus cathartica, R. frangula, Lonicera morowii and others,
and Berberis thunbergii) (Brzeskiewicz, 2000).
4.2.5.17 Spatulate‐leaved Sundew (Drosera intermedia)
Spatulate‐leaved sundew is listed as DRM Sensitive.
Potential effects for this species are described in the following Guilds: Bogs and Fens.
Species Description
Spatulate‐leaved sundew is a perennial insectivorous plant with a basal rosette of spatula‐shaped leaves
with an upper surface covered with gland‐tipped hairs. The 2‐4 mm wide leaves sit atop a 2‐5 cm
smooth petiole. The white flower has 3‐4 mm long sepals and petals 4‐5 mm long sitting atop a 20 cm
tall stem (Chadde, 2002).
Species Habitat
This species occurs in the wettest parts of bogs and on sandy shores subject to periodic inundation
(Voss, 1985). Lakela (1965) cites the species as occurring in floating bogs, on edges of mucky hummocks
in northeastern Minnesota.
Species Distribution and Occurrences within the Study Area
D. intermedia ranges across the North American continent from
Nunavut in Canada south to Texas, east to Florida and north to the
Canadian Atlantic Provinces. The species is known from one county in
Idaho.
USDA Plants Database at:
http://plants.usda.gov/java/county?state_name=Minnesota&statefip
s=27&symbol=DRIN3
Drosera intermedia is only listed by the DRM, so point data from DNR
and CNF are not available.
Risk Factors
Principle threats to this species are alteration of hydrology due to human or beaver activities and
succession to dense shrub or tree cover.
4.2.5.18 Goldie’s fern (Dryopteris goldiana)
Goldie’s fern is listed as DNR Special Concern, CNF RFSS and DRM Threatened.
Potential effects for this species are described in the following Guilds: Lowland Hardwood Forests and
Northern Hardwood Forests.
Species Description
This large, clumped fern with creeping rhizomes has leaves that grow to 1 meter long with blades 30 to
60 cm long and 20‐40 cm wide. Distinguished by large, broad backward tilting, golden‐green leaves,
backward tilting blades and shallowly toothed pinnules (Tryon, 1993 and Cobb, 1963).
Species Habitat
Range wide, Goldie’s fern inhabits dense, moist woods, especially ravines, limey seeps, on peninsulas of
large water bodies or at the edge of swamps (Montgomery and Wagner, 1993). Minnesota represents
July 2010 Species and Associated Habitat Page 4‐60