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Adventive
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Exotic
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Extinct
\n
Extirpated
\n
Extralimital
\n
G1 (Highly globally rare)
\n
G1G2 (Highly globally rare)
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G2 (Globally rare)
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G2G3 (Globally rare)
\n
G3 (Globally rare/local)
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G3G4 (Globally vulnerable)
\n
G4
\n
G4G5
\n
G5
\n
Garrett only
\n
GH (No known extant occurrences)
\n
GU (Global status uncertain)
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Hybrid
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In need of conservation
\n
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\n
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S1 (Highly state rare)
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S1B (Highly state rare breeder)
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S1M (State rare migrant)
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S1N (State rare non-breeder)
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S1S2 (Highly state rare)
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S1S2B (State rare breeder)
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S2 (State rare)
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S2B (State rare breeder)
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S2B (State rare breeder)
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S2S3 (State rare)
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S2S3B (State rare breeder)
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S3 (Watch list)
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S3B (State watchlist breeder)
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S3S4
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S3S4B (State watchlist breeder)
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S4SE
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SH (Historical)
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SHB (State historical breeder)
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SR (State rare)
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Status Uncertain
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SUB (Status uncertain breeder)
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SXB (State extirpated breeder)
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SXM (State extirpated migrant)
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Western MD only
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Worcester only
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Photos
Common Name
Genus
Species
Records  
Category
Family
Order
Class
Kingdom
1
Eastern Hog-nosed Snake
Heterodon
platirhinos
293
Reptiles
Colubridae
Squamata
Reptilia
Animalia
1
Pincushion Moss
Leucobryum
glaucum
66
Mosses
Leucobryaceae
Dicranales
Bryopsida
Plantae
1
Green Arrow Arum
Peltandra
virginica
260
Arum Family
Araceae
Arales
Magnoliopsida
Plantae
1
Narrow-leaved Silkgrass
Pityopsis
graminifolia
var.
latifolia
40
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
2
Upland Boneset
Eupatorium
sessilifolium
var.
sessilifolium
46
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
3
Anise-scented Goldenrod
Solidago
odora
var.
odora
91
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
4
Robin's Plantain
Erigeron
pulchellus
var.
pulchellus
58
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
5
Southern Horseweed
Conyza
canadensis
var.
pusilla
3
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
6
Racemose Goldenrod
Solidago
racemosa
25
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
7
Downy Goldenrod
Solidago
puberula
var.
puberula
41
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
8
Late Purple Aster
Symphyotrichum
patens
43
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
9
Elm-leaved Goldenrod
Solidago
ulmifolia
var.
ulmifolia
27
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
10
Godfrey's Thoroughwort
Eupatorium
godfreyanum
13
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
11
Atlantic Goldenrod
Solidago
arguta
37
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
1
Mayapple
Podophyllum
peltatum
1538
Barberry Family
Berberidaceae
Ranunculales
Magnoliopsida
Plantae
1
Wax Myrtle
Morella
cerifera
322
Bayberry Family
Myricaceae
Myricales
Magnoliopsida
Plantae
1
American Bellflower
Campanula
americana
84
Bellflower Family
Campanulaceae
Asterales
Magnoliopsida
Plantae
1
Gray Alder
Alnus
incana
var.
rugosa
14
Birch Family
Betulaceae
Fagales
Magnoliopsida
Plantae
2
Hophornbeam
Ostrya
virginiana
95
Birch Family
Betulaceae
Fagales
Magnoliopsida
Plantae
1
Wild Ginger
Asarum
canadense
509
Birthwort Family
Aristolochiaceae
Piperales
Magnoliopsida
Plantae
1
American Bladdernut
Staphylea
trifolia
237
Bladdernut Family
Staphyleaceae
Sapindales
Magnoliopsida
Plantae
1
Narrow-leaved Cow-wheat
Melampyrum
lineare
142
Broom-rape Family
Orobanchaceae
Lamiales
Magnoliopsida
Plantae
1
Sessile Trillium
Trillium
sessile
283
Bunchflower Family
Melanthiaceae
Liliales
Magnoliopsida
Plantae
1
Black Baneberry
Actaea
racemosa
200
Buttercup Family
Ranunculaceae
Ranunculales
Magnoliopsida
Plantae
2
Rock Buttercup
Ranunculus
micranthus
25
Buttercup Family
Ranunculaceae
Ranunculales
Magnoliopsida
Plantae
3
Red Columbine
Aquilegia
canadensis
var.
canadensis
282
Buttercup Family
Ranunculaceae
Ranunculales
Magnoliopsida
Plantae
1
Pricklypear species
Opuntia
sp.
108
Cactus Family
Cactaceae
Caryophyllales
Magnoliopsida
Plantae
1
Harbinger of Spring
Erigenia
bulbosa
166
Carrot Family
Apiaceae
Apiales
Magnoliopsida
Plantae
2
Maryland Sanicle
Sanicula
marilandica
22
Carrot Family
Apiaceae
Apiales
Magnoliopsida
Plantae
1
Pawpaw
Asimina
triloba
949
Custard-apple Family
Annonaceae
Magnoliales
Magnoliopsida
Plantae
1
Slippery Elm
Ulmus
rubra
130
Elm Family
Ulmaceae
Urticales
Magnoliopsida
Plantae
1
American Ginseng
Panax
quinquefolius
28
Ginseng Family
Araliaceae
Apiales
Magnoliopsida
Plantae
1
Frost Grape
Vitis
vulpina
111
Grape Family
Vitaceae
Vitales
Magnoliopsida
Plantae
2
Graybark Grape
Vitis
cinerea
var.
floridana
29
Grape Family
Vitaceae
Vitales
Magnoliopsida
Plantae
1
Wavy-leaved Basketgrass
Oplismenus
undulatifolius
197
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
2
Wavy Hairgrass
Avenella
flexuosa
37
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
3
Narrowleaf Rosettegrass
Dichanthelium
angustifolium
13
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
4
Eastern Bottlebrush Grass
Elymus
hystrix
192
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
5
Prairie Wedgescale
Sphenopholis
obtusata
26
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
6
Twoflower Melicgrass
Melica
mutica
29
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
7
Oldpasture Bluegrass
Poa
saltuensis
7
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
8
Marsh Bristlegrass
Setaria
parviflora
60
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
9
Heller's Rosette Grass
Dichanthelium
oligosanthes
var.
oligosanthes
32
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
10
Southern Shorthusk
Brachyelytrum
erectum
31
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
11
Poverty Oatgrass
Danthonia
spicata
144
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
12
Openflower Rosette Grass
Dichanthelium
laxiflorum
34
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
13
Tapered Rosette Grass
Dichanthelium
acuminatum
94
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
14
Squirreltail Fescue
Vulpia
sciurea
7
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
15
Riverbank Wildrye
Elymus
riparius
14
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
16
Hairy Woodland Brome
Bromus
pubescens
34
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
17
Hairy Wildrye
Elymus
villosus
28
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
1
Pinesap
Monotropa
hypopitys
217
Heath Family
Ericaceae
Ericales
Magnoliopsida
Plantae
1
Dwarf Hackberry
Celtis
tenuifolia
10
Hemp Family
Cannabaceae
Urticales
Magnoliopsida
Plantae
1
American Holly
Ilex
opaca
2014
Holly Family
Aquifoliaceae
Celastrales
Magnoliopsida
Plantae
1
Common Spicebush
Lindera
benzoin
770
Laurel Family
Lauraceae
Laureles
Magnoliopsida
Plantae
2
Sassafras
Sassafras
albidum
1397
Laurel Family
Lauraceae
Laureles
Magnoliopsida
Plantae
1
Swamp Loosestrife
Decodon
verticillatus
198
Loosestrife Family
Lythraceae
Myrtales
Magnoliopsida
Plantae
1
Shining Bedstraw
Galium
concinnum
26
Madder Family
Rubiaceae
Rubiales
Magnoliopsida
Plantae
2
Common Buttonbush
Cephalanthus
occidentalis
602
Madder Family
Rubiaceae
Rubiales
Magnoliopsida
Plantae
1
Cucumber Tree
Magnolia
acuminata
58
Magnolia Family
Magnoliaceae
Magnoliales
Magnoliopsida
Plantae
2
Tulip Poplar
Liriodendron
tulipifera
1696
Magnolia Family
Magnoliaceae
Magnoliales
Magnoliopsida
Plantae
1
American Basswood
Tilia
americana
115
Mallow Family
Malvaceae
Malvales
Magnoliopsida
Plantae
2
Crimson-eyed Rosemallow
Hibiscus
moscheutos
520
Mallow Family
Malvaceae
Malvales
Magnoliopsida
Plantae
1
Swamp Milkweed (incarnata)
Asclepias
incarnata
ssp.
incarnata
2
Milkweed Family
Apocynaceae
Gentianales
Magnoliopsida
Plantae
1
American False Pennyroyal
Hedeoma
pulegioides
72
Mint Family
Lamiaceae
Lamiales
Magnoliopsida
Plantae
1
Common Moonseed
Menispermum
canadense
247
Moonseed Family
Menispermaceae
Ranunculales
Magnoliopsida
Plantae
1
Blackhaw
Viburnum
prunifolium
452
Moschatel Family
Adoxaceae
Dipsacales
Magnoliopsida
Plantae
1
Red Mulberry
Morus
rubra
73
Mulberry Family
Moraceae
Urticales
Magnoliopsida
Plantae
1
Smooth Rockcress
Boechera
laevigata
180
Mustard Family
Brassicaceae
Brassicales
Magnoliopsida
Plantae
1
Chinkapin Oak
Quercus
muehlenbergii
27
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
2
Basket Oak
Quercus
michauxii
140
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
3
Post Oak
Quercus
stellata
331
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
4
Northern Red Oak
Quercus
rubra
242
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
5
Shumard Oak
Quercus
shumardii
22
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
6
Cherrybark Oak
Quercus
pagoda
34
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
7
American Beech
Fagus
grandifolia
970
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
1
White Ash
Fraxinus
americana
111
Olive Family
Oleaceae
Scrophulariales
Magnoliopsida
Plantae
1
Showy Orchid
Galearis
spectabilis
438
Orchids
Orchidaceae
Orchidales
Magnoliopsida
Plantae
1
Incised Fumewort
Corydalis
incisa
68
Poppy Family
Papaveraceae
Papaverales
Magnoliopsida
Plantae
2
Dutchman's Breeches
Dicentra
cucullaria
651
Poppy Family
Papaveraceae
Papaverales
Magnoliopsida
Plantae
1
Clammy Groundcherry
Physalis
heterophylla
53
Potato Family
Solanaceae
Solanales
Magnoliopsida
Plantae
1
Canadian Frostweed
Crocanthemum
canadense
51
Rock-rose Family
Cistaceae
Violales
Magnoliopsida
Plantae
1
Two-leaved Miterwort
Mitella
diphylla
181
Saxifrage Family
Saxifragaceae
Rosales
Magnoliopsida
Plantae
2
Heart-leaved Foamflower
Tiarella
cordifolia
71
Saxifrage Family
Saxifragaceae
Rosales
Magnoliopsida
Plantae
1
White Bear Sedge
Carex
albursina
26
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
2
James's Sedge
Carex
jamesii
37
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
3
Bur-reed Sedge
Carex
sparganioides
31
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
4
Muhlenberg's Sedge (muhlenbergii)
Carex
muehlenbergii
var.
muehlenbergii
8
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
5
Hitchcock's Sedge
Carex
hitchcockiana
20
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
6
Flat-spike Sedge
Carex
planispicata
16
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
7
Broad-leaved Sedge
Carex
platyphylla
63
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
8
Hirsute Sedge
Carex
complanata
124
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
9
Torrey's Bulrush
Schoenoplectus
torreyi
8
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
1
Virginia Spiderwort
Tradescantia
virginiana
132
Spiderwort Family
Commelinaceae
Commelinales
Magnoliopsida
Plantae
1
Fraser's St. Johnswort
Hypericum
fraseri
2
St. Johnswort Family
Hypericaceae
Theales
Magnoliopsida
Plantae
1
Woodland Stonecrop
Sedum
ternatum
179
Stonecrop Family
Crassulaceae
Rosales
Magnoliopsida
Plantae
1
Sweet Gum
Liquidambar
styraciflua
1820
Sweet Gum Family
Altingiaceae
Hamamelidales
Magnoliopsida
Plantae
1
American Frog's-bit
Limnobium
spongia
34
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
1
Shagbark Hickory
Carya
ovata
81
Walnut Family
Juglandaceae
Juglandales
Magnoliopsida
Plantae
2
Red Hickory
Carya
ovalis
10
Walnut Family
Juglandaceae
Juglandales
Magnoliopsida
Plantae
3
Bitternut Hickory
Carya
cordiformis
116
Walnut Family
Juglandaceae
Juglandales
Magnoliopsida
Plantae
4
Pignut Hickory
Carya
glabra
104
Walnut Family
Juglandaceae
Juglandales
Magnoliopsida
Plantae
1
Eastern Red Cedar
Juniperus
virginiana
var.
virginiana
888
Cypress Family
Cupressaceae
Pinales
Pinopsida
Plantae
1
Virginia Pine
Pinus
virginiana
729
Pine Family
Pinaceae
Pinales
Pinopsida
Plantae
2
Table Mountain Pine
Pinus
pungens
26
Pine Family
Pinaceae
Pinales
Pinopsida
Plantae
1
Royal Fern
Osmunda
regalis
var.
spectabilis
561
Ferns
Osmundaceae
Osmundales
Polypodiopsida
Plantae
2
Glade Fern
Diplaziopsis
pycnocarpa
51
Ferns
Diplaziopsidaceae
Polypodiales
Polypodiopsida
Plantae
3
Bog Fern
Thelypteris
simulata
32
Ferns
Thelypteridaceae
Polypodiales
Polypodiopsida
Plantae
4
Interrupted Fern
Claytosmunda
claytoniana
205
Ferns
Osmundaceae
Osmundales
Polypodiopsida
Plantae
5
Carolina Mosquitofern
Azolla
caroliniana
106
Ferns
Salviniaceae
Salviniales
Polypodiopsida
Plantae
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