Maine Field Guide to Invasive Aquatic Plants - Brant Lake Milfoil ...

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I N V A S I V E P L A N T S MAINE'S ELEVEN MOST UNWANTED INVASIVE AQUATIC PLANTS This section covers eleven invasive species that are listed by law as posing a threat to Maine waters. Following the description of each plant is a list of possible look alike plants that may be confused with the invader. 18 Maine Volunteer Lake Monitoring Program
Variable water-milfoil I N VA S I V E A Q U AT I C P L A N T S
Page 1 and 2: Maine Field Guide to Invasive Aquat
Page 3 and 4: Maine Field Guide to Invasive Aquat
Page 5 and 6: FANWORT AND INVASIVE MILFOIL LOOK A
Page 7 and 8: A m a j o r g i f t o f s u p p o r
Page 9 and 10: A C K N O W L E D G E M E N T S Mai
Page 11 and 12: With over 6000 lakes and ponds, and
Page 13 and 14: CAUTION: Even after one has ruled o
Page 15 and 16: Littoral Zone Major Plant Communiti
Page 17 and 18: plant structure In order to identif
Page 19 and 20: Stem and Leaf Structures stipule bu
Page 21 and 22: The four plants depicted below are
Page 23 and 24: 1 Floating Leaf Plants 1. Floating
Page 25 and 26: 3 S u b m e r s e d P l a n t s w i
Page 27: Invasive Plant Patrol On-Lake Train
Page 31 and 32: floating roots not anchored to sedi
Page 33 and 34: floating rosette of leaves submerse
Page 35 and 36: floating leaves Floating leaves oft
Page 37 and 38: Origin and US Range: Fanwort is nat
Page 39 and 40: Origin and US Range: Eurasian water
Page 41 and 42: Origin and US Range: Variable water
Page 43 and 44: Annual Cycle: The invasive milfoil
Page 45 and 46: Origin and US Range: Parrot feather
Page 47 and 48: Origin and US Range: Brazilian wate
Page 49 and 50: submersed stem fruits flowers leave
Page 51 and 52: Curly-leaf pondweed S U B M E R S E
Page 53 and 54: Origin and Range: European naiad is
Page 55 and 56: Origin and Range: Hydrilla is nativ
Page 57 and 58: Relative comparison of leaf-size Di
Page 59 and 60: Fragrant waterlily NATIVE LOOK ALIK
Page 61 and 62: US Range: Both of Maine’s native
Page 63 and 64: habit near base of stem flower frui
Page 65 and 66: Annual Cycle: Mare’s tail is a pe
Page 67 and 68: US Range: Both claspingleaf pondwee
Page 69 and 70: Annual cycle: Large-leaf pondweed i
Page 71 and 72: Annual Cycle: Red pondweed is an aq
Page 73 and 74: to occur in Maine. Annual Cycle: Va
Page 75 and 76: US Range: White-stem pondweed is na
Page 77 and 78: emergent flower stalk winter bud FA
Page 79 and 80:
flowers Large purple bladderwort wi
Page 81 and 82:
US Range: Both species are native t
Page 83 and 84:
P. palustris P. pectinata Annual Cy
Page 85 and 86:
Value to the Aquatic Community: The
Page 87 and 88:
US Range: Both water crowfoots are
Page 89 and 90:
Description: All five leafy native
Page 91 and 92:
GR0UP 1 ALTERNATE-FLOWERED WATER-MI
Page 93 and 94:
WHORLED WATER-MILFOIL COMB WATER-MI
Page 95 and 96:
LOW WATER-MILFOIL Myriophyllum humi
Page 97 and 98:
REPRODUCTIVE STRUCTURES AND OTHER D
Page 99 and 100:
Note: A subspecies, Nymphea odorata
Page 101 and 102:
Annual Cycle: Spatterdock over-wint
Page 103 and 104:
Annual Cycle: Little floating heart
Page 105 and 106:
Annual Cycle: Watershield is an aqu
Page 107 and 108:
Range: Northern snail-seed pondweed
Page 109 and 110:
Slender Pondweed Species Comparison
Page 111 and 112:
Origin and Range: Both species are
Page 113 and 114:
leaf branching habit leaf base Slen
Page 115 and 116:
oogonium calcium carbonate barbs E
Page 117 and 118:
such as the Maine DEP) assess the e
Page 119 and 120:
quick, efficient way to determine w
Page 121 and 122:
the water. Very clear lakes may sup
Page 123 and 124:
12. If you are noting dominant nati
Page 125 and 126:
OTHER INVADERS ON MAINE’S RADAR S
Page 127 and 128:
Chinese Mystery Snail (Cipangopalud
Page 129 and 130:
Unauthorized introductions of invas
Page 131 and 132:
aquatic ecosystem. This may in turn
Page 133 and 134:
ut its diminutive size and peoples'
Page 135 and 136:
plant may produce up to 2.5 million
Page 137 and 138:
Didymo is a freshwater diatom that
Page 139 and 140:
A n O u n c e o f P r e v e n t i o
Page 141 and 142:
European) Common Reed (Phragmites a
Page 143 and 144:
Page 28: Page 29: Page 30: Page 31:
Page 145 and 146:
Page 82: Page 83: Page 84: Page 85:
Page 147 and 148:
O t h e r U s e f u l R e s o u r c
Page 149 and 150:
Emergent - Plants have leaves that
Page 151 and 152:
Sub-opposite - Leaves almost opposi
Page 153 and 154:
northern bladderwort . . . . . . .
Page 155 and 156:
Najas gracillima . . . . . . . . .
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Maine Field Guide to Invasive Aquatic Plants - Brant Lake Milfoil ...

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