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Plants of Pittsburgh, Pennsylvania

The plants most often spotted near Pittsburgh, ranked by recent research-grade observations.

59,523
recent observations
50
species listed
50
plants

Naturalists have logged 59,523 research-grade observations across the 50 most-recorded species near Pittsburgh. The most frequently seen is the White Snakeroot, with 2,466 recorded sightings.

Most-observed plants near Pittsburgh

White Snakeroot
Ageratina altissima
2,466 observations
Garlic Mustard
Alliaria petiolata
2,392 observations
Mayapple
Podophyllum peltatum
2,065 observations
Dame's Rocket
Hesperis matronalis
2,041 observations · iNaturalist
Ground-ivy
Glechoma hederacea
1,892 observations · iNaturalist
Amur Honeysuckle
Lonicera maackii
1,645 observations
American Pokeweed
Phytolacca americana
1,640 observations
Virginia Springbeauty
Claytonia virginica
1,612 observations
Common Mugwort
Artemisia vulgaris
1,534 observations · iNaturalist
Wingstem
Verbesina alternifolia
1,463 observations
Eastern Poison Ivy
Toxicodendron radicans
1,456 observations
Cut-leaved Toothwort
Cardamine concatenata
1,435 observations
Red Deadnettle
Lamium purpureum
1,428 observations · iNaturalist
Multiflora Rose
Rosa multiflora
1,428 observations
Common Milkweed
Asclepias syriaca
1,335 observations
Christmas Fern
Polystichum acrostichoides
1,306 observations
Large White Trillium
Trillium grandiflorum
1,225 observations
Eastern Skunk Cabbage
Symplocarpus foetidus
1,205 observations
Creeping Thistle
Cirsium arvense
1,148 observations
Woodland Stonecrop
Sedum ternatum
1,093 observations
Virginia Bluebells
Mertensia virginica
1,077 observations
Japanese Barberry
Berberis thunbergii
1,061 observations · iNaturalist
Box Elder
Acer negundo
1,057 observations
Sensitive Fern
Onoclea sensibilis
1,055 observations
Purple Crownvetch
Securigera varia
1,054 observations · iNaturalist
Colt's-foot
Tussilago farfara
1,047 observations · iNaturalist
Japanese Knotweed
Reynoutria japonica
1,036 observations
Chicory
Cichorium intybus
1,033 observations
Bittersweet Nightshade
Solanum dulcamara
1,014 observations
Azure Bluet
Houstonia caerulea
969 observations · iNaturalist
Wild Carrot
Daucus carota
949 observations
Bloodroot
Sanguinaria canadensis
928 observations
American Burnweed
Erechtites hieraciifolius
924 observations · iNaturalist
Yellow Trout Lily
Erythronium americanum
911 observations
Common Jewelweed
Impatiens capensis
899 observations
Blue Phlox
Phlox divaricata
889 observations
American Sycamore
Platanus occidentalis
870 observations
Great Mullein
Verbascum thapsus
870 observations
Wild Teasel
Dipsacus fullonum
853 observations
Northern Spicebush
Lindera benzoin
849 observations
American Jumpseed
Persicaria virginiana
849 observations · iNaturalist
American Cancer-root
Conopholis americana
848 observations
Poison Hemlock
Conium maculatum
845 observations
Tree-of-heaven
Ailanthus altissima
845 observations
White Clover
Trifolium repens
839 observations
Carpet Bugle
Ajuga reptans
835 observations · iNaturalist
Wild Geranium
Geranium maculatum
829 observations
Jack-in-the-Pulpit
Arisaema triphyllum
827 observations
Eastern Redbud
Cercis canadensis
826 observations
Philadelphia Fleabane
Erigeron philadelphicus
826 observations · iNaturalist

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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