Early Detection

EARLY DETECTION SPECIES BY STATE

SPECIES	ME	NH	VT	MA	RI	CT
TREE
Paulownia tomentosa	0	0	0	?	?	+

SHRUBS
Lonicera maackii	0	0	0	+	0	+
Rubus phoenicolasias	0	0	0	+	+	+

HERBACEOUS PLANTS
Butomus umbellatus	1	0	+	0	0	1
Cardamine impatiens	1	2	0	1	0	+
Cirsium palustre	0	H	0	H	0	0
Cynanchum rossicum	1	1	0	+	2	+
Froelichia gracilis	0	1	3	+	0	+
Glaucium flavum	0	0	0	+	+	H
Heracleum mantagazzianum	3	+	0	+	?	+
Impatiens gladulifera	+	0	?	+	0	H
Lepidium latifolium	0	0	0	+	0	+
Polygonum perfoliatum	0	0	0	0	1	2
Ranunuculus ficaria	1	1	0	+	1	+
Senecio jacobaea	1	0	0	3	0	0

WOODY VINES
Lonicera japonica	1	?	?	+	+	+
Pueraria montana subsp. lobata	0	0	0	2	0	2

GRAMINOID PLANTS
Arthraxon hispidus	0	0	0	H	0	1
Carex kobomugi	0	0	0	H	1	0
Glyceria maxima	0	0	0	1	0	?
Microstegium vimineum	0	0	0	3	0	+

AQUATIC PLANTS
Cabomba caroliniana	0	+	0	+	+	+
Callitriche stagnalis	?	1	?	?	?	?
Egeria densa	0	2	0	+	1	2
Eichhornia crassipes (naturalized)	0	0	0	0	0	?
Glossostigma diandrum	0	0	0	0	1	3
Hydrilla verticillata	1	0	0	1	0	3
Hydrocharis morsus-ranae	0	0	+	0	0	0
Myriophyllum aquaticum	0	0	0	1	1	2
Myriophyllum heterophyllum	+	+	0	+	+	+
Myriophyllum spicatum	0	3	+	+	?	+
Najas minor	0	1	+	+	0	+
Nymphoides peltata	0	0	+	1	1	H
Pistia stratiotes (naturalized)	0	0	0	0	0	0
Potamogeton crispus	1	1	+	+	+	+
Salvinia molesta complex (naturalized)	0	0	0	0	0	0
Trapa natans	0	1	+	+	0	+

0 = No known occurrences, 1 = 1 occurrence, 2 = 2 occurrences, 3 = 3 occurrences, + = 4 or more occurrences, H = historic occurrences about which the current status is unclear and the reports are more than 25 years old, ? = number of occurrences unclear or unsubstantiated