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Adventive
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Coastal Plain only
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Endangered (Federal)
\n
Endangered (MD)
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Excluded
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Exotic
\n
Extinct
\n
Extirpated
\n
Extralimital
\n
G1 (Highly globally rare)
\n
G1G2 (Highly globally rare)
\n
G2 (Globally rare)
\n
G2G3 (Globally rare)
\n
G3 (Globally rare/local)
\n
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
Invasive
\n
Nativity Uncertain
\n
Non-native
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Reviewable (MD/DCRC)
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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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Threatened (Federal)
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Threatened (MD)
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Undescribed
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Vulnerable
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Waif
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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
Smooth Blue Aster
Symphyotrichum
laeve
11
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
2
Serpentine Aster
Symphyotrichum
depauperatum
14
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
3
Canadian Horseweed
Conyza
canadensis
var.
canadensis
408
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
4
Small's Ragwort
Packera
anonyma
76
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
5
Balsam Ragwort
Packera
paupercula
43
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
6
American Yarrow
Achillea
borealis
738
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
7
Rough Cocklebur
Xanthium
strumarium
305
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
8
Lesser Snakeroot
Ageratina
aromatica
39
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
9
Annual Ragweed
Ambrosia
artemisiifolia
576
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
10
Gray Goldenrod
Solidago
nemoralis
ssp.
nemoralis
87
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
11
Hairy White Oldfield Aster
Symphyotrichum
pilosum
111
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
12
Willow-leaved Lettuce
Lactuca
saligna
7
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
1
Pale-spiked Lobelia
Lobelia
spicata
105
Bellflower Family
Campanulaceae
Asterales
Magnoliopsida
Plantae
1
Purple Gerardia
Agalinis
purpurea
162
Broom-rape Family
Orobanchaceae
Lamiales
Magnoliopsida
Plantae
1
Pleat-leaved Knotweed
Polygonum
tenue
40
Buckwheat Family
Polygonaceae
Caryophyllales
Magnoliopsida
Plantae
1
Narrow-leaved Evening Primrose
Oenothera
fruticosa
124
Evening Primrose Family
Onagraceae
Myrtales
Magnoliopsida
Plantae
1
Quill Fameflower
Phemeranthus
teretifolius
89
Fameflower Family
Talinaceae
Caryophyllales
Magnoliopsida
Plantae
1
Stiff Yellow Flax
Linum
medium
var.
texanum
56
Flax Family
Linaceae
Linales
Magnoliopsida
Plantae
1
Virginia Creeper
Parthenocissus
quinquefolia
1197
Grape Family
Vitaceae
Vitales
Magnoliopsida
Plantae
1
Wiry Panicgrass
Panicum
flexile
6
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
2
Philadelphia Panicgrass
Panicum
philadelphicum
28
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
3
Creeping Bentgrass
Agrostis
stolonifera
27
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
4
Poverty Oatgrass
Danthonia
spicata
148
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
5
Starved Panicgrass
Dichanthelium
depauperatum
56
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
6
Little Bluestem
Schizachyrium
scoparium
var.
scoparium
79
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
7
Prairie Wedgescale
Sphenopholis
obtusata
26
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
8
Smooth Crabgrass
Digitaria
ischaemum
58
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
9
Bosc's Panicgrass
Dichanthelium
boscii
90
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
10
Slimleaf Panicgrass
Dichanthelium
linearifolium
32
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
11
Poverty Dropseed
Sporobolus
vaginiflorus
var.
vaginiflorus
21
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
12
Churchmouse Threeawn
Aristida
dichotoma
27
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
13
Purple Lovegrass
Eragrostis
spectabilis
112
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
14
Round-fruited Panicgrass
Dichanthelium
sphaerocarpon
72
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
15
Indiangrass
Sorghastrum
nutans
133
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
16
Arrow-feather Threeawn
Aristida
purpurascens
34
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
17
Prairie Dropseed
Sporobolus
heterolepis
4
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
18
Fowl Mannagrass
Glyceria
striata
81
Grasses
Poaceae
Poales
Magnoliopsida
Plantae
1
Glaucous Greenbrier
Smilax
glauca
650
Greenbrier Family
Smilacaceae
Liliales
Magnoliopsida
Plantae
2
Common Greenbrier
Smilax
rotundifolia
966
Greenbrier Family
Smilacaceae
Liliales
Magnoliopsida
Plantae
1
Early Lowbush Blueberry
Vaccinium
pallidum
152
Heath Family
Ericaceae
Ericales
Magnoliopsida
Plantae
2
Deerberry
Vaccinium
stamineum
385
Heath Family
Ericaceae
Ericales
Magnoliopsida
Plantae
1
Japanese Honeysuckle
Lonicera
japonica
1148
Honeysuckle Family
Caprifoliaceae
Dipsacales
Magnoliopsida
Plantae
1
Needletip Blue-eyed Grass
Sisyrinchium
mucronatum
30
Iris Family
Iridaceae
Liliales
Magnoliopsida
Plantae
1
Sassafras
Sassafras
albidum
1403
Laurel Family
Lauraceae
Laureles
Magnoliopsida
Plantae
1
Azure Bluets
Houstonia
caerulea
710
Madder Family
Rubiaceae
Rubiales
Magnoliopsida
Plantae
1
Red Maple
Acer
rubrum
1265
Maple Family
Sapindaceae
Sapindales
Magnoliopsida
Plantae
1
Green Milkweed
Asclepias
viridiflora
145
Milkweed Family
Apocynaceae
Gentianales
Magnoliopsida
Plantae
2
Whorled Milkweed
Asclepias
verticillata
113
Milkweed Family
Apocynaceae
Gentianales
Magnoliopsida
Plantae
1
Whorled Milkwort
Polygala
verticillata
30
Milkwort Family
Polygalaceae
Polygalales
Magnoliopsida
Plantae
1
Appalachian Mountain-mint
Pycnanthemum
flexuosum
3
Mint Family
Lamiaceae
Lamiales
Magnoliopsida
Plantae
2
Spotted Beebalm
Monarda
punctata
313
Mint Family
Lamiaceae
Lamiales
Magnoliopsida
Plantae
1
Lyrate Rockcress
Arabidopsis
lyrata
ssp.
lyrata
257
Mustard Family
Brassicaceae
Brassicales
Magnoliopsida
Plantae
1
Post Oak
Quercus
stellata
331
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
2
Blackjack Oak
Quercus
marilandica
153
Oak Family
Fagaceae
Fagales
Magnoliopsida
Plantae
1
Moss Phlox
Phlox
subulata
219
Phlox Family
Polemoniaceae
Solanales
Magnoliopsida
Plantae
1
Field Chickweed
Cerastium
arvense
53
Pink Family
Caryophyllaceae
Caryophyllales
Magnoliopsida
Plantae
2
Large Field Chickweed
Cerastium
velutinum
114
Pink Family
Caryophyllaceae
Caryophyllales
Magnoliopsida
Plantae
1
Bloodroot
Sanguinaria
canadensis
1378
Poppy Family
Papaveraceae
Papaverales
Magnoliopsida
Plantae
1
Black Cherry
Prunus
serotina
806
Rose Family
Rosaceae
Rosales
Magnoliopsida
Plantae
2
Northern Dewberry
Rubus
flagellaris
191
Rose Family
Rosaceae
Rosales
Magnoliopsida
Plantae
3
Dwarf Cinquefoil
Potentilla
canadensis
var.
canadensis
251
Rose Family
Rosaceae
Rosales
Magnoliopsida
Plantae
1
Poverty Rush
Juncus
tenuis
182
Rush Family
Juncaceae
Poales
Magnoliopsida
Plantae
2
Lopsided Rush
Juncus
secundus
39
Rush Family
Juncaceae
Poales
Magnoliopsida
Plantae
1
Early Saxifrage
Micranthes
virginiensis
489
Saxifrage Family
Saxifragaceae
Rosales
Magnoliopsida
Plantae
1
Black-fruit Spikerush
Eleocharis
melanocarpa
17
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
2
Slender Fimbry
Fimbristylis
autumnalis
59
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
3
Parasol Sedge
Carex
umbellata
35
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
4
Few-flowered Nutrush
Scleria
pauciflora
43
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
5
Dense-tufted Hairsedge
Bulbostylis
capillaris
59
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
6
Forked Fimbry
Fimbristylis
annua
17
Sedge Family
Cyperaceae
Poales
Magnoliopsida
Plantae
1
Orangegrass
Hypericum
gentianoides
122
St. Johnswort Family
Hypericaceae
Theales
Magnoliopsida
Plantae
1
Winged Sumac
Rhus
copallinum
var.
copallinum
752
Sumac Family
Anacardiaceae
Sapindales
Magnoliopsida
Plantae
1
Arrow-leaved Violet
Viola
sagittata
131
Violet Family
Violaceae
Violales
Magnoliopsida
Plantae
1
Common Yellow Woodsorrel
Oxalis
stricta
160
Wood-sorrel Family
Oxalidaceae
Geraniales
Magnoliopsida
Plantae
1
Eastern Red Cedar
Juniperus
virginiana
var.
virginiana
892
Cypress Family
Cupressaceae
Pinales
Pinopsida
Plantae
1
Virginia Pine
Pinus
virginiana
734
Pine Family
Pinaceae
Pinales
Pinopsida
Plantae
1
Christmas Fern
Polystichum
acrostichoides
1768
Ferns
Dryopteridaceae
Polypodiales
Polypodiopsida
Plantae
2
Brackenfern
Pteridium
aquilinum
304
Ferns
Dennstaedtiaceae
Polypodiales
Polypodiopsida
Plantae
3
Ebony Spleenwort
Asplenium
platyneuron
879
Ferns
Aspleniaceae
Polypodiales
Polypodiopsida
Plantae
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