20080868 Ver 2_2015 Veg Data_20160708

Appendix G-1. Duck Well 1 B Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance values
Arundinaria gigantea
12.6(6.89-18.31)
6.7(4.62-8.78)
1
1.43
Smilax rotundifolia
0.55(-1.73-2.83)
0.4(-0.6-1.41)
0.2
0.13
Quercus sp. seedling
0.03(n/a)
0.1(n/a)
0.1
0.04
Woodwardiaareolata
13.9(1.75-26.05)
3.1(1.32-4.88)
0.6
1
Carexintumescens
0.15(-0.1-0.4)
0.3(-0.21-0.81)
0.2
0.11
Ilex opaca
0.03(n/a)
0.1(n/a)
0.1
0.05
Glyceria striata
1.0(n/a)
0.2(n/a)
0.1
0.09
Sauurus cernus
0.15(n/a)
0.4(n/a)
0.1
0.08
Leucothoeracemosa
0.1(n/a)
0.1(n/a)
0.1
0.05
Appendix G-2. Duck Well 1B Shrubs 2015.
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
Appendix G-3. Duck Well 2A Herbs 2015.
Scientific name
Average percent cover (95%
Average number of stems
Frequency of
Importance value'
Scientific name
confidence interval)
(95% confidence interval)
occurrence
Importance value'
Arundinaria gigantea
13.9(1.11-26.69)
7.4(2.62-12.94)
1
2.57
Magnolia virginiana
0.5(n/a)
0.1(n/a)
0.1
0.12
Acerrubrum
2.0(n/a)
0.1(n/a)
0.1
0.21
Persea palustris
0.1(n/a)
0.1(n/a)
0.1
0.1
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
Appendix G-3. Duck Well 2A Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value'
Toxicodendron radicans
0.78(-0.26-1.81)
2.60(0.15-5.05)
0.5
0.35
Lonicera japonica
0.18(0.05-0.3)
0.40(-0.61-1.41)
0.2
0.09
Acerrubrum
0.60(-0.53-1.73)
1.30(0.34-2.26)
0.5
0.25
Berchemia scandens
0.10(n/a)
0.10(n/a)
0.1
0.04
Saururus cemuus
5.00(-4.00-14.00)
1.50(-0.39-3.39)
0.3
0.42
Cratageus marshalli
0.05(n/a)
0.10(n/a)
0.1
0.03
Woodwardia areolata
5.90(-1.09-12.90)
1.70(0.22-3.18)
0.5
0.52
Arundinaria gigantea
7.40(-0.16-14.96)
3.60(0.36-6.84)
0.4
0.71
Mitchella repens
0.10(n/a)
0.30(n/a)
0.1
0.05
Carex intumescens
0.15(-0.10-0.40)
0.30(-0.21-0.81)
0.2
0.08
Arisaema triphyllum
0.15(-0.10-0.40)
0.20(0.02-0.20)
0.3
0.1
Liquidambar styraciflua
0.10(n/a)
0.10(n/a)
0.1
0.04
Quercus michauxii
0.18(-0.10-0.45)
0.30(0.30-0.30)
0.3
0.1
Lyonia lucida
0.50(n/a)
0.50(n/a)
0.1
0.09
Liriodendron tulipfera
0.03(n/a)
0.10(n/a)
0.1
0.03
Quercus nigra
0.10(n/a)
0.10(n/a)
0.1
0.03
Campsis radicans
0.05(n/a)
0.10(n/a)
0.1
0.03
Galium tinctorium
0.05(n/a)
0.10(n/a)
0.1
0.03
Appendix G-4. Duck Well 2A Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value'
Decumaria barbara
0.20(n/a)
0.10(n/a)
0.1
0.28
Callicarpa americana
0.50(n/a)
0.10(n/a)
0.1
0.36
Vitis rotundifolia
0.10(n/a)
0.10(n/a)
0.1
0.26
Acerrubrum
1.00(n/a)
0.10(n/a)
0.1
0.48
Fraxinus pennsylvanica
1.00(n/a)
0.10(n/a)
0.1
0.48
Berchemia scandens
0.50(n/a)
0.20(n/a)
0.1
0.47
Magnolia virginiana
0.50(n/a)
0.10(n/a)
0.1
0.36
Liquidambar styraciflua
0.30(n/a)
0.10(n/a)
0.1
0.31
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-14

Appendix G-5. Duck Well 3A Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance values
Microstegium viminium
2.60(0.58-4.62)
1.80(-2.25-5.85)
0.2
0.31
Juncussp.
0.80(n/a)
0.20(n/a)
0.1
0.08
Woodwardia areolata
1.60(-1.29-4.49)
0.90(0.18-1.62)
0.3
0.22
Triadendum walteri
0.01(n/a)
0.10(n/a)
0.1
0.03
Pinus seedling
0.11(-0.34-0.57)
0.60(-1.42-2.62)
0.2
0.10
Dichanthelium comatum
0.25(-0.06-0.56)
0.40(0.40-0.40)
0.4
0.15
Arundinariagigantea
2.30(1.80-2.81)
1.10(-0.42-2.62)
0.2
0.24
Viola sororia
1.91(-2.00-5.82)
1.10(-0.37-2.57)
0.4
0.28
Eleocharis tortilis
4.40(0.46-8.34)
1.10(-0.70-2.90)
0.3
0.37
Lycopusvirginicus
3.01(-12.11-18.13)
1.10(-2.44-4.64)
0.2
0.27
Smilax glauca
0.13(-0.25-0.50)
0.90(-0.62-2.42)
0.2
0.12
Pinus taeda
0.18(-0.10-0.45)
2.20(-1.47-5.87)
0.3
0.25
Carex intumescens
3.18(-3.72-10.07)
1.40(-1.49-4.29)
0.4
0.36
Parthenocissus quinquefolia
0.08(0.08-0.08)
0.30(0.30-0.30)
0.3
0.10
Gelsemium sempervirens
0.10(n/a)
0.10(n/a)
0.1
0.04
Glyceria striata
0.70(n/a)
0.30(n/a)
0.1
0.08
Appendix G-6. Duck Well 3A Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value'
Arundinaria gigantea
6.30(-5.50-18.10)
5.10(-1.72-13.00)
0.4
1.31
Liquidambar styraciflua
10.30(-2.43-23.03)
1.00(0.28-1.83)
0.5
0.99
Persea palustris
0.50(n/a)
0.10(n/a)
0.1
0.10
Campsis radicans
0.30(-0.21-0.81)
0.20(0.20-0.20)
0.2
0.16
Morella cerifera
0.30(n/a)
0.10(n/a)
0.1
0.09
Vitis rotundifolia
0.10(n/a)
0.10n/a)
0.1
0.08
Smilax rotundifolia
0.10(n/a)
0.10(n/a)
0.1
0.08
Symplocus tinctoria
0.30(n/a)
0.10(n/a)
0.1
0.09
Cyrllla racemiflora
0.40(n/a)
0.10(n/a)
0.1
0.09
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-15

Appendix G-7. Duck Well 4B Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance values
Triadenum walteri
0.90(n/a)
0.40(n/a)
0.1
0.10
Bohmeria cylindrica
0.25(0.04-0.46)
0.60(-0.12-1.43)
0.3
0.12
Microstegium vimineum
10.63(-29.44-50.69)
21.10(-59.3-114.22)
0.3
1.56
Glyceria striata
0.10(n/a)
0.20(n/a)
0.1
0.04
Eleochris tortillis
0.80(-0.21-1.81)
0.40(-0.61-1.57)
0.2
0.12
Smilax bona-nox
0.03(n/a)
0.10(n/a)
0.1
0.03
Saurus cernus
0.10(n/a)
0.10(n/a)
0.1
0.04
Berchemia scandens
0.08(-0.05-0.20)
0.30(-0.21-0.89)
0.2
0.07
Liriodendron tulipfera
0.15(-0.16-0.46)
0.40(-0.01-0.88)
0.3
0.10
Carex intumescens
0.73(-0.35-1.80)
1.10(0.17-2.18)
0.5
0.22
Parthenocissus quinquefolia
0.03(n/a)
0.10(n/a)
0.1
0.03
Dichantheliumsp.
0.10(n/a)
0.20(n/a)
0.1
0.04
Mitchella repens
0.03(n/a)
0.10(n/a)
0.1
0.03
Campsis radicans
0.15(n/a)
0.20(n/a)
0.1
0.04
Ilex opaca
0.05(n/a)
0.10(n/a)
0.1
0.03
Crataegus marshalli
0.33(0.06-0.59)
0.80(-0.21-1.97)
0.4
0.15
Persea palustris
0.20(0.20-0.20)
0.20(0.20-0.20)
0.2
0.07
Carpinus caroliniana
0.03(n/a)
0.10(n/a)
0.1
0.03
Lonicera japonica
0.10(n/a)
0.30(n/a)
0.1
0.04
Pinus taeda
0.03(n/a)
0.10(n/a)
0.1
0.03
Vitis rotundifolia
0.10(n/a)
0.20(n/a)
0.1
0.04
Liquidambar styraciflua
0.03(n/a)
0.10(n/a)
0.1
0.03
Toxicodendron radicans
0.03(n/a)
0.10(n/a)
0.1
0.03
ADoendix G-8. Duck Well 4B Shrubs 2015.
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-16
Average percent cover (95%
Average number of stems
Frequency of
Scientific name
confidence interval)
(95% confidence interval)
occurrence
Importance value
Berchemia scandens
0.40(0.40-0.40)
0.40(0.40-0.40)
0.4
1.90
Vitis rotundifolia
0.30(-0.21-0.81)
0.20(0.20-0.20)
0.2
1.10
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-16

Appendix G-9. DC11 Well 2B Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance values
Microstegium vimineum
5.60(-2.34-13.54)
4.30(-0.57-9.17)
0.5
1.02
Toxicodendron radicans
1.50(-1.33-4.33)
1.90(0.52-3.28)
0.5
0.45
Quercus nigra
0.10(n/a)
0.10(n/a)
0.1
0.05
Smilax rotundifolia
0.10(n/a)
0.10(n/a)
0.1
0.05
Saurrus cernus
0.23(0.05-0.40)
0.70(-0.39-1.79)
0.3
0.18
Bignonia capreolata
0.05(n/a)
0.10(n/a)
0.1
0.05
Woodwardia aerolata
0.90(-0.62-2.42)
0.80(-1.22-2.82)
0.2
0.21
Vitis rotundifolia
0.3(n/a)
0.10(n/a)
0.1
0.04
Lonicera japonica
0.15(-0.10-0.40)
0.50(-0.01-1.01)
0.2
0.12
Ligustrum sinense
0.35(-0.20-0.90)
3.20(-3.60-10.00)
0.3
0.38
Athyriumfilix-femina
1.05(-0.81-2.91)
0.60(-0.12-1.32)
0.3
0.24
Fraxinuspennsylvancia
0.10(0.1-0.1)
0.20(0.20-0.20)
0.2
0.09
Carex intumescens
0.60(n/a)
0.20(n/a)
0.1
0.10
Appendix G-10. DC11 Well 2B Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value
Toxicodendron radicans
1.80(-0.78-4.38)
0.30(0.30-0.30)
0.3
0.47
Vitis rotundifolia
1.00(n/a)
0.10(n/a)
0.1
0.19
Smilax rotundifolia
0.20(0.20-0.20)
0.40(-0.61-1.57)
0.2
0.33
Decumaria barbara
0.20(0.20-0.20)
0.30(-0.21-0.89)
0.2
0.28
Persea palustris
3.20(-3.25-9.65)
0.60(-0.12-1.43)
0.3
0.72
Ligustrum sinense
5.20(-9.13-19.53)
0.30(0.30-0.30)
0.3
0.73
Ilex opaca
1.50(n/a)
0.20(n/a)
0.1
0.27
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
Appendix G-11. DC19 Well 2A Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value
Fraxinus pennsylvanica
1.50(n/a)
0.10(n/a)
0.1
0.21
Woodwardia aerolata
1.45(-1.63-4.53)
0.60(0.19-1.01)
0.4
0.43
Bohmeria cylindrica
0.18(0.05-0.30)
0.20(0.20-0.20)
0.2
0.14
Gelsemium sempervirens
0.05(n/a)
0.10(n/a)
0.1
0.07
Microstegium vimineum
4.00(-9.47-17.47)
2.40(-2.61-7.41)
0.3
0.94
Quercus laurifolia
0.10(n/a)
0.10(n/a)
0.1
0.07
Bignonia capreolata
0.10(n/a)
0.10(n/a)
0.1
0.07
Lonicera japonica
0.10(n/a)
0.20(n/a)
0.1
0.09
Saururus cernuus
0.20(n/a)
0.40(n/a)
0.1
0.14
Smilax rotundifolia
1.10(-3.45-5.65)
0.40(-0.61-1.41)
0.2
0.27
Dioscorea villosa
0.10(n/a)
0.10(n/a)
0.1
0.07
Acerrubrum
0.50(n/a)
0.10(n/a)
0.1
0.11
Carex comosa
0.50(n/a)
0.20(n/a)
0.1
0.13
Itea virginica
0.70(-1.83-3.23)
0.60(-0.41-1.61)
0.2
0.26
Appendix G-12. DC19 Well 2A Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value
Persea palustris
1.70(-4.88-8.28)
0.20(0.20-0.20)
0.2
0.27
Ligustrum sinense
0.60(-1.42-2.62)
0.20(0.20-0.20)
0.2
0.21
Vitis rotundifolia
0.70(-0.95-2.35)
0.30(0.30-0.30)
0.3
0.30
Quercus nigra
1.00(n/a)
0.20(n/a)
0.1
0.17
Arundinaria gigantea
2.50(n/a)
1.80(n/a)
0.1
0.68
Ulnus americana
2.50(-0.03-5.03)
0.30(-0.21-0.81)
0.2
0.35
Carpinus caroliniana
2.50(-5.09-10.09)
0.20(0.20-0.20)
0.2
0.32
Quercus alba
1.50(n/a)
0.10(n/a)
0.1
0.18
Acerrubrum
2.50(n/a)
0.10(n/a)
0.1
0.24
Smilax rotundifolia
1.00(n/a)
0.30(n/a)
0.1
0.20
Berchemia scandens
0.10(n/a)
0.10(n/a)
0.1
0.09
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-17

Appendix G-13. Long Creek Well 2B Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance values
Eleocharis tortilis
0.40(n/a)
3.10(n/a)
0.1
0.06
Microstegium vimenium
0.10(n/a)
0.20(n/a)
0.1
0.05
Dichanthelium sp.
0.55(9-0.35-1.45)
1.00(-0.49-2.49)
0.3
0.18
Arundinaria gigantea
4.00(-3.99-11.99)
2.00(-0.74-4.74)
0.4
0.49
Pluchea odorata
1.15(-2.67-4.97)
0.90(-0.53-2.33)
0.3
0.21
Bacopa monerd
0.20(n/a)
0.60(n/a)
0.1
0.08
Glyceria striata
0.20(n/a)
0.10(n/a)
0.1
0.05
Acerrubrum
0.05(n/a)
0.20(n/a)
0.1
0.04
Liquidambar styraciflua
0.05(n/a)
0.10(n/a)
0.1
0.04
Gelsemium sempervirens
0.10(n/a)
0.20(n/a)
0.1
0.05
Woodwardia aerolata
0.80(n/a)
0.20(n/a)
0.1
0.09
Persea palustris
0.05(n/a)
0.10(n/a)
0.1
0.04
Morella cerifera
0.18(0.07-0.28)
0.60(-0.64-1.84)
0.3
0.14
Carex debilis
0.25(0.00-0.50)
0.80(-2.24-3.84)
0.2
0.12
Smilax bona-nox
0.05(n/a)
0.20(n/a)
0.1
0.04
Bohmeria cylindrica
0.10(n/a)
0.10(n/a)
0.1
0.04
Toxicodendron radicans
5.01(-20.23-30.25)
0.30(-0.21-0.81)
0.2
0.38
Hydrocotyle verticillata
3.04(-9.28-15.35)
8.40(-23.82-40.62)
0.3
0.79
Vitis rotundifolia
0.05(n/a)
0.10(n/a)
0.1
0.04
Quercus sp. seedling
0.03(n/a)
0.10(n/a)
0.1
0.04
Appendix G-14. Lonq Creek Well 2B Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value
Morella cerifera
22.80(6.84-38.76)
2.90(-13.06-18.86)
0.8
1.45
Arundinaria gigantea
0.60(-0.12-1.32)
0.50(-0.22-1.22)
0.3
0.20
Liquidambarstyraciflua
0.80(-0.21-1.81)
0.20(-0.81-1.21)
0.2
0.12
Smilax bona-nox
0.30(0.30-0.30)
0.30(0.30-0.30)
0.3
0.16
Baccharis halimifolia
1.70(0.24-3.16)
0.80(-0.66-2.26)
0.6
0.39
Vacciniumcorymbosum
0.30(-0.21-0.81)
0.20(-0.31-0.71)
0.2
0.11
Persea palustris
1.60(1.60-1.60)
0.40(0.40-0.40)
0.2
0.18
Vitis rotundifolia
0.20(0.20-0.20)
0.20(0.20-0.20)
0.2
0.11
Ilex glabra
0.30(n/a)
0.20(n/a)
0.1
0.08
Acerrubrum
4.00(n/a)
0.30(n/a)
0.1
0.21
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-18

Appendix G-15. Porter Creek Well 5 Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance values
Arundinaria gigantea
0.30(n/a)
1.50(n/a)
0.1
0.44
Smilax rotundifolia
0.90(-0.17-1.97)
0.70(0.02-1.38)
0.4
0.63
Ilex opaca
0.30(n/a)
0.10(n/a)
0.1
0.16
Lonicera japonica
0.18(0.05-0.30)
0.30(-0.21-0.81)
0.2
0.24
Carex intumescens
1.00(n/a)
0.20(n/a)
0.1
0.34
Bignonia capreolata
1.58(-4.47-7.62)
1.80(-3.79-7.39)
0.3
0.93
Toxicodendron radicans
0.05(n/a)
0.10(n/a)
0.1
0.10
Mitchella repens
0.10(n/a)
0.30(n/a)
0.1
0.15
Appendix G-16. Porter Creek Well 5 Shrubs 2015.
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
Auoendix G-17. Porter Creek Well 9A Herbs 2015.
Scientific name
Average percent cover (95%
Average number of stems
Frequency of
Importance value'
Scientific name
confidence interval)
(95% confidence interval)
occurrence
Importance value'
Arundinaria gigantea
1.60(-5.48-8.68)
1.10(-3.45-6.37)
0.2
0.98
Carpinus caroliniana
7.00(4.93-9.07)
1.20(-2.52-5.51)
0.3
1.80
Bignonia capreolata
0.10(n/a)
0.10(n/a)
1 0.1
1 0.22
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
Auoendix G-17. Porter Creek Well 9A Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value'
Saururus cernuus
26.10(1.23-50.97)
11.10(0.75-21.45)
0.6
1.60
Campsis radicans
0.40(n/a)
0.20(n/a)
0.1
0.07
Lycopus virginiana
0.40(n/a)
0.20(n/a)
0.1
0.07
Carex intumescens
1.50(n/a)
0.10(n/a)
0.1
0.09
Ludwigia palustris
9.50(n/a)
1.50(n/a)
0.1
0.37
Persicaria arifolia/Polygonum arifolium
0.50(n/a)
0.20(n/a)
0.1
0.07
Microstegium vimineum
0.50(n/a)
1.20(n/a)
0.1
0.13
Galium tinctorium
0.05(n/a)
0.20(n/a)
0.1
0.06
Toxicodendron radicans
0.30(-0.34-0.94)
0.40(-0.01-0.81)
0.3
0.17
Polygonum punctatum
0.60(n/a)
0.40(n/a)
0.1
0.09
Smilax rotundifolia
0.10(n/a)
0.10(n/a)
0.1
0.06
Eclipta prostrata
0.40(n/a)
0.20(n/a)
0.1
0.07
Boehmeria cyclindrica
0.05(n/a)
0.10(n/a)
0.1
0.06
Fraxinus pennsylvanica
2.00(n/a)
0.10(n/a)
0.1
0.10
Appendix G-18. Porter Creek Well 9A Shrubs 2015.
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-19
Average percent cover (95%
Average number of stems
Frequency of
Scientific name
confidence interval)
(95% confidence interval)
occurrence
Importance value'
Diospyros virginiana
7.30(2.13-12.47)
1.20(0.19-2.37)
0.4
1.87
Toxicodendron radicans
6.40(-21.93-34.73)
0.20(0.2-0.2)
0.2
0.85
Fraxinus pennsylvanica
1.00(n/a)
0.10(n/a)
0.1
0.28
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-19

Appendix G-19. Tooley Creek Well 1 Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance values
Liquidambar styraciflua
0.10(n/a)
0.10(n/a)
0.1
0.04
Smilax bona-nox
0.60(-1.42-2.62)
0.90(-2.94-4.14)
0.2
0.14
Arundinaria gigantea
17.5(9.50-25.50)
8.90(11.46-23.54)
0.5
1.25
Microstegium vimineum
2.40(-0.08-4.88)
2.00(0.33-4.47)
0.3
0.30
Juncus
0.50(n/a)
0.50(n/a)
0.1
0.08
Vitis rotundifolia
0.50(n/a)
0.20(n/a)
0.1
0.06
Persea palustris
0.80(n/a)
0.20(n/a)
0.1
0.07
Lonicera japonica
0.10(n/a)
0.10(n/a)
0.1
0.04
Mania scandens
2.10(-1.82-6.02)
0.70(1.42-2.78)
0.4
0.24
Pluchea odorata
5.55(-2.11-13.21)
2.20(3.37-7.73)
0.5
0.48
Eupatorium capilifolium
0.08(n/a)
0.30(n/a)
0.1
0.05
Sabal minor
0.40(n/a)
0.10(n/a)
0.1
0.05
Polygonum punctatum
0.10(n/a)
0.10(n/a)
0.1
0.04
Toxicodendron radicans
0.05(n/a)
0.10(n/a)
0.1
0.04
Baccharis halimifolia
2.00(n/a)
0.10(n/a)
0.1
0.10
Appendix G-20. Tooley Creek Well 1 Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value'
Arundinaria gigantea
22.50(-1.52-46.52)
17.50(-1.48-39.48)
0.6
1.75
Quercus laurifolia
0.80(n/a)
0.20(n/a)
0.1
0.07
Q. nigra
0.30(n/a)
0.10(n/a)
0.1
0.05
Q.lyrata
0.40(n/a)
0.10(n/a)
0.1
0.05
Persea palustris
0.50(n/a)
0.10(n/a)
0.1
0.06
Smilax bona nox
0.40(-0.61-1.41)
0.20(0.20-0.20)
0.2
0.10
Vitis rotundifolia
0.50(0.14-0.86)
0.50(0.14-0.91)
0.6
0.26
Smilax rotundifolia
0.20(0.2-0.2)
0.20(0.20-0.20)
0.2
0.09
Ilex opaca
1.00(n/a)
0.10(n/a)
0.1
0.07
Parthenocissus quinquefolia
0.10(n/a)
0.10(n/a)
0.1
0.04
Baccharis halimifolia
7.50(0.42-14.58)
1.10(0.26-2.07)
0.5
0.46
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
Appendix G-21. Tooley Creek Well 3 Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value'
Pluchea odorata
16.50(9.88-23.12)
13.80(8.71-24.29)
0.8
1.36
Bolboschoenus robustus
7.40(-0.7-15.5)
4.80(2.92-11.88)
0.6
0.65
Polygonum punctatum
11.40(-16.06-38.86)
1.20(9.97-12.83)
0.4
0.50
Baccharis halimifolia
0.50(n/a)
0.10(n/a)
0.1
0.06
Mikania scandens
0.50(-0.01-1.01)
0.20(0.5-0.5)
0.2
0.10
Sabal minor
1.00(n/a)
0.20(n/a)
0.1
0.07
Morella cerifera
0.05(n/a)
0.10(n/a)
0.1
0.05
Eupatorium capillifolium
0.20(n/a)
0.60(n/a)
0.1
0.07
Phragmites australis
2.00(n/a)
1.00(n/a)
0.1
0.14
Appendix G-22. Toolev Creek Well 3 Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value'
Vitis rotundifolia
1.10(-0.08-2.28)
0.5(0.5-0.5)
0.5
0.55
Arundinaria gigantea
2.00(n/a)
1.50(n/a)
0.1
0.58
Berchemia scandens
0.30(n/a)
0.10(n/a)
0.1
0.11
Baccharis halimifolia
3.00(n/a)
0.40(n/a)
0.1
0.33
Sabal minor
12.50(0.68-24.32)
1.00(0.08-2.07)
0.4
1.19
Morella cerifera
0.50(n/a)
0.10(n/a)
0.1
0.12
Persea palustris
0.30(n/a)
0.10(n/a)
0.1
0.11
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-20

Appendix G-23. Toolev Creek Well 4 Herbs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance values
Pluchea odorata
2.10(-0.54-4.74)
1.70(-0.47-4.67)
0.4
0.39
Echincloa walterii
6.70(3.52-9.88)
2.30(4.42-8.98)
0.6
0.75
Cyperus odoratus
1.10(-3.45-5.65)
0.60(-0.92-3.12)
0.2
0.17
Mania scandens
1.05(-1.99-4.09)
0.50(0.69-1.41)
0.4
0.22
Hydrocotyle verticillata
0.05(n/a)
0.50(n/a)
0.1
0.08
Morella cerifera
1.20(-2.52-4.92)
0.50(0.37-2.03)
0.3
0.20
Eupatorium capillifolium
1.10(-2.82-5.02)
1.40(-3.44-5.64)
0.3
0.28
Smilax rotundifolia
0.50(-0.24-1.34)
1.00(-1.15-2.25)
0.4
0.24
Digitaria sanguinalis
0.30(n/a)
0.20(n/a)
0.1
0.06
Arundinaria gigantea
0.75(-1.43-2.93)
0.70(-0.90-2.40)
0.3
0.19
Quercus phellos
0.15(n/a)
0.10(n/a)
0.1
0.05
Rubus flagellaris
0.05(n/a)
0.10(n/a)
0.1
0.04
Microstegium vimineum
3.50(n/a)
1.00(n/a)
0.1
0.31
Polygonus punctatum
0.05(n/a)
0.10(n/a)
0.1
0.04
Appendix G-24. Toolev Creek Well 4 Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value
Morella cerifera
16.10(-3.23-35.43)
1.60(-0.25-3.74)
0.6
0.79
Baccharis halimifolia
2.10(0.21-3.99)
0.50(0.09-0.98)
0.3
0.20
Arundinaria gigantea
9.70(2.85-16.55)
9.80(3.03-17.64)
0.6
1.19
Quercus phellos
1.20(-2.85-5.25)
0.20(0.20-0.20)
0.2
0.12
0.laurifolia
0.10(n/a)
0.10(n/a)
0.1
0.04
Q. nigra
1.20(0.19-2.21)
0.50(-0.01-1.09)
0.2
0.14
Smilax rotundifolia
1.00(0.08-1.92)
0.60(0.19-1.08)
0.4
0.21
Berchemia scandens
1.30(-2.23-4.83)
0.30(0.30-0.30)
0.3
0.16
Liquidambarstyraciflua
1.80(-4.27-7.87)
0.30(-0.21-0.89)
0.2
0.14
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
Appendix G-25. Tooley Creek Well 6 Herbs 2015.
Appendix G-26. Toolev Creek Well 6 Shrubs 2015.
Scientific name
Average percent cover (95%
Average number of stems
Frequency of
Importance value'
Scientific name
confidence interval)
(95% confidence interval)
occurrence
Importance value
Microstegium vimenium
47.00(18.79-75.21)
106.60(-28.02-122.02)
0.8
2.42
Smilax bona-nox
0.05(n/a)
0.10(n/a)
0.1
0.07
Gelsemium sempervirens
0.10(n/a)
0.10(n/a)
0.1
0.07
Arundinaria gigantea
5.00(-1.20-11.20)
0.70(4.64-5.36)
0.4
0.37
Cicuta maculata
0.10(n/a)
0.10(n/a)
0.1
0.07
Appendix G-26. Toolev Creek Well 6 Shrubs 2015.
Scientific name
Average percent cover (95%
confidence interval)
Average number of stems
(95% confidence interval)
Frequency of
occurrence
Importance value'
Arundinaria gigantea
24.50(8.20-40.80)
15.20(8.98-22.40)
1
1.88
Berchemia scandens
9.50(4.04-14.96)
0.30(0.30-0.30)
0.3
0.36
Baccharis halimifolia
3.00(-7.12-13.12)
0.30(-0.21-0.89)
0.2
0.17
Quercus laurifolia
1.50(n/a)
0.10(n/a)
0.1
0.08
Smilax rotundifolia
1.50(-0.65-3.65)
0.30(0.30-0.30)
0.3
0.18
Q.lyrata
0.30(n/a)
0.10(n/a)
0.1
0.06
Vaccinium corymbosum
0.10(n/a)
0.10(n/a)
0.1
0.05
Q. phellos
0.50(n/a)
0.10(n/a)
0.1
0.06
Callicarpa americana
5.00(n/a)
0.10(n/a)
0.1
0.16
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-21