Piermont, Rockland County, NY
1,017 acres

Located just north of Tallman Mountain State Park and south of the Tappan Zee Bridge (from where Piermont Pier can be seen).


Located at the southern edge of the Village of Piermont 4 miles south of Nyack in Rockland County. The site occupies two miles of shoreline south of the mile long Erie Pier and includes the mouth of Sparkill Creek and extensive tidal shallows. Tappan Zee bridge; 9W south; turn left onto Crescent Street, left onto Ash Street; sharp right downhill on Hudson Terrace/Tate Avenue; keep working downhill to Main Street Piermont; turn left onto Paradise Avenue and park across from the ball field. Walk from here east to the end of Piermont Pier. The site lies at the southern edge of the Village of Piermont, four miles south of Nyack. The Piermont Marsh is located on the west shore of the Tappan Zee in the Town of Orangetown in Rockland County. The site occupies two miles of shoreline south of the mile-long Erie Pier, and includes the mouth of Sparkill Creek and extensive tidal shallows. The Sparkill Creek drains 11.1 square miles of watershed. Sparkill Gap, the valley of Sparkill Creek, just west of the north end of the Piermont Marsh, is the only sea level break in the Palisades Ridge.


Bogertown. This small early 19th century community of ten houses assumed the name of its prominent colonial Dutch residents, the Bogert family. The creek here was known as the Slote (Dutch for ditch). Around 1740 the creek was deepened and rerouted. It became known as the Spar Kill and the landing was called Tappan Landing.

In 1824 there was a 500 foot pier on the Hudson. Paradise Avenue was cut through the salt marsh to accommodate steam vessels.

Nearby, on Paradise Avenue, at #38 is the John Sneden, Jr. home of about 1800. He was the grandson of the famed Dobbs-Sneden ferrywoman Molly Sneden and son of the patriot John Sneden. He married Phebe Gesner, daughter of a prominent Nyack shipbuilding family. Their sixth son "Boss" William S. Sneden acquired the house around 1861 and operated a nearby shipyard on the Slote (Sparkill Creek).

The one mile long Erie Pier was built in 1841 as the eastern terminus of the Erie Railroad which ran down from Dunkirk, NY on the shore of Lake Erie. Passengers and freight switched from train to boat bound for New York City. Many ferries and day-liners came here.

In 1859 the northern Railroad of New Jersey was completed to its junction with the Erie Railroad at Piermont.

In 1861 the pier was abandoned after Jersey City became the eastern terminus of the Erie Railroad.

In 1862 half the population of Piermont moved away.

At one time this was a terminus of the "underground railroad." Former slaves established Skunk Hollow which at one time had 75 blacks trying to eke out a living from farming the rocky soil. Later the former slaves sold their land and moved out of the area. (Binnewies, 2001:18)

The property was at one time owned by the Nature Conservancy. They transferred it to the NYSDEC. In 1982 the National Oceanic and Atmospheric Administration's Office of Coastal Zone Management formally designated Piermont Marsh as part of a Federal Hudson River Estuarine Sanctuary to be administered by NYSDEC in cooperation with PIPC. The pier is owned by the village.

Dr. Patrick L. Cooney

Acer negundo (box elder)
Acer platanoides (Norway maple)
Acer rubrum (red maple)
Acer saccharinum (silver maple)
Ailanthus altissima (tree-of-heaven)
Catalpa speciosa (northern catalpa)
Celtis occidentalis (hackberry)
Fraxinus americana (white ash)
Morus alba (white mulberry)
Pinus strobus (white pine)
Populus deltoides (cottonwood)
Prunus avium (cherry)?
Prunus serotina (black cherry)
Pyrus malus (apple tree)
Pyrus sp. (crab apple)
Robinia pseudoacacia (black locust) 6/08/97
Salix alba hybrid (weeping willow)
Salix nigra (black willow)
Sassafras albidum (sassafras)

Amorpha fruticosa (false indigo) 6/08/97 waning
Berberis thunbergii (Japanese barberry)
Cornus amomum (swamp dogwood) 9/12/96
Cornus racemosa (gray-stemmed dogwood)
Ligustrum sp. (privet)
Lonicera morrowii (Morrow's honeysuckle) 6/08/97
Myrica pensylvanica (bayberry)
Rhamnus cathartica? (common buckthorn?) 6/08/97
Rhus glabra (smooth sumac)
Rhus typhina (staghorn sumac)
Rosa multiflora (multiflora rose) 6/08/97
Rubus phoenicolasius (wineberry)
Rubus sp. (blackberry)
Salix discolor (pussy willow)

Ampelopsis brevipedunculata (porcelain berry)
Calystegia sepium (hedge bindweed)
Celastrus orbiculatus (Asiatic bittersweet) 6/08/97
Cuscuta sp. (dodder) 9/12/96
Hedera helix (English ivy)
Lonicera japonica (Japanese honeysuckle) 8/21/99 8/27/01 9/12/96 9/25/95
Menispermum canadense (Canada moonseed)
Parthenocissus quinquefolia (Virginia creeper)
Solanum dulcamara (bittersweet nightshade) 8/27/01
Toxicodendron radicans (poison ivy) 6/08/97
Vincetoxicum nigrum (black swallowwort)
Vitis aestivalis (summer grape)

Acalypha rhomboidea (three-seeded mercury)
Alliaria petiolata (garlic mustard) 6/08/97
Amaranthus blitum (amaranthus) 8/21/99
Amaranthus cannabinus (salt marsh amaranthus) 8/21/99 8/27/01 9/12/96
Amaranthus hybridus (amaranthus) 8/21/99 9/12/96 9/25/95
Ambrosia artemisiifolia (common ragweed) 8/21/99 near; 8/27/01 9/12/96
Ambrosia trifida (giant ragweed) 8/27/01 9/12/96
Apocynum androsaemifolium (spreading dogbane)
Arctium sp. (burdock) 8/27/01
Artemisia vulgaris (common mugwort) 9/12/96 9/25/95
Asclepias sp. (milkweed) 6/08/97 soon
Asclepias syriaca (common milkweed)
Aster novae-angliae (New England aster) 9/25/95
Aster sp. (a small white aster) 9/12/96 9/25/95
Aster subulatus (small salt marsh aster) 9/12/96
Atriplex hastata (orache)
Atriplex patula (halberd-leaved orache) 9/12/96 9/25/95
Avens macrophylla (large-leaved avens) 9/12/96
Barbarea vulgaris (common wintercress) 6/08/97
Bidens frondosa (beggar ticks) 9/12/96 9/25/95
Bidens vulgata (tall beggar ticks) 9/25/95
Calystegia sepium (hedge bindweed) 8/21/99
Cerastium vulgatum (mouse-ear chickweed)
Chenopodium album (pigweed)
Chenopodium ambrosioides (Mexican tea) 8/21/99 9/12/96 9/25/95
Cichorium intybus (chicory) 8/21/99 8/27/01 9/12/96 9/25/95
Cirsium arvense (Canada thistle)
Cirsium vulgaris (bull thistle) 9/25/95
Cirsium discolor (field thistle) 9/12/96
Cirsium pumilum (pasture thistle)
Commelina communis (Asiatic day flower) 8/21/99 8/27/01 9/12/96 9/25/95
Conyza canadensis (horseweed) 8/27/01
Daucus carota (Queen Anne's lace) 8/21/99 8/27/01 9/12/96 9/25/95
Dianthus armeria (Deptford pink) 8/27/01 9/12/96
Eclipta prostrata (yerba-de-tajo) 8/21/99
Erechtites hieraciifolia (pilewort) 9/12/96
Erigeron annuus (daisy fleabane) 9/12/96
Eupatorium rugosum (white snakeroot) 9/12/96 9/25/95
Eupatorium album (white boneset) 8/27/01
Euphorbia cyparissias (cypress spurge) 6/08/97 waning
Euphorbia maculata (spotted spurge) 8/21/99
Euphorbia nutans (upright spurge) 8/27/01
Euthamia graminifolia (grass-leaved goldenrod) 9/12/96 9/25/95
Galium sp. (bedstraw) 9/12/96
Glechoma hederacea (gill-over-the-ground) 6/08/97
Hibiscus moscheutos (swamp rose mallow) 8/21/99
Hypericum perforatum (common St. Johnswort) 8/27/01 9/12/96
Impatiens capensis (orange jewelweed) 8/27/01 9/12/96 9/25/95
Iris (yellow flag) 6/08/97
Lactuca serriola (wild lettuce) 9/12/96 9/25/95
Lepidium campestre (field peppergrass) 6/08/97
Lepidium virginicum (poor man's pepper)
Lespedeza sp. (bush clover)
Linaria vulgaris (butter-and-eggs) 8/21/99 9/12/96 9/25/95
Lotus corniculatus (birdfoot trefoil) 8/27/01
Lycopus americanus (American water horehound)
Lythrum salicaria (purple loosestrife) 8/21/99 8/27/01 9/12/96 9/25/95
Matricaria matricarioides (pineapple weed) 6/08/97
Medicago lupulina (black medick) 6/08/97 8/27/01
Medicago sativa (alfalfa)
Melilotus alba (white sweet clover) 8/27/01
Melilotus officinalis (yellow sweet clover) 6/08/97
Mirabilis nyctaginea (heart-leaved umbrellawort)
Oenothera biennis (common evening primrose) 8/21/99 8/27/01 9/12/96 9/25/95
Oxalis stricta (yellow wood sorrel) 8/27/01 9/12/96 9/25/95
Pastinaca sativa (wild parsnip) 6/08/97 soon
Phytolacca americana (pokeweed) 8/21/99
Plantago lanceolata (English plantain) 6/08/97 9/12/96 9/25/95
Plantago major (common plantain)8/21/99
Pluchea odorata (salt marsh fleabane) 8/21/99 8/27/01 9/12/96
Polygonum arenastrum (dooryard knotweed) 8/27/01 9/12/96
Polygonum cespitosum (cespitose smartweed) 8/21/99 9/12/96 9/25/95
Polygonum cuspidatum (Japanese smartweed) 8/27/01
Polygonum hydropiperoides (false water pepper) 9/12/96 9/25/95
Polygonum lapathifolium (nodding smartweed) 8/21/99
Polygonum pensylvanicum (pink knotweed) 8/21/99 8/27/01 9/12/96 9/25/95
Polygonum scandens (climbing false hempweed)
Polygonum virginianum (jumpseed)
Portulaca oleracea (purslane) 8/27/01 9/12/96
Potentilla norvegica (rough cinquefoil) 9/25/95
Potentilla recta (rough cinquefoil)
Rumex acetosella (field sorrel)
Rumex crispus (curled dock)
Rumex obtusifolius (broad-leaved dock)
Sagittaria subulata (arrowhead)
Saponaria officinale (bouncing bet) 8/21/99 8/27/01 9/12/96
Senecio vulgaris (common groundsel) 6/08/97
Silene alba (white campion) 6/08/97
Silene vulgaris (bladder campion) 6/08/97 8/21/99 9/12/96
Solanum carolinense (horse nettle)
Solanum nigrum (black nightshade) 8/21/99 9/12/96 9/25/95
Solanum dulcamara (bittersweet nightshade) 8/21/99
Solidago canadensis var. scabra (goldenrod) 8/21/99 near
Solidago gigantea (tall goldenrod 9/12/96 9/25/95
Solidago juncea (early goldenrod) 8/21/99 8/27/01
Solidago odora (sweet goldenrod) 8/21/99 near
Solidago sempervirens (seaside goldenrod) 9/12/96 9/25/95
Sonchus arvensis (field sow thistle) 6/08/97 9/12/96 9/25/95
Sonchus oleraceus (common sow thistle) 8/21/99 8/27/01 9/12/96
Taraxacum officinale (dandelion) 6/08/97 8/27/01 9/12/96 9/25/95
Trichostema dichotoma (blue curls) 8/27/01
Trifolium pratense (red clover) 6/08/97 8/27/01 9/12/96 9/25/95
Trifolium repens (white clover) 6/08/97 8/24/01 9/12/96 9/25/95
Typha latifolia (broad-leaved cattail)
Vallisneria americana (water celery)
Verbascum thapsus (common mullein)
Verbena urticifolia (white vervain) 8/27/01
Vincetoxicum nigrum (black swallowwort) 6/08/97 9/12/96
Xanthium strumarium (clotbur)
water parsnip
Zizia aurea ? (golden alexanders)?

Rushes and Sedges:
Carex lurida (sedge)
Carex sp. (sack sedge)
Carex vulpinoidea (sedge)
Cyperus esculentus (umbrella sedge)
Cyperus filicinus (umbrella sedge) 8/21/99 near
Cyperus strigosus (false nutsedge) 8/21/99 near
Eleocharis acicularis (spike rush) the tiny species covering the mud in the tidal flat area
Juncus tenuis (path rush)

Agrostis sp. (stinkgrass) 9/12/96
Bromus tectorum (downy chess brome grass)
Dactylis glomerata (orchard grass) 6/08/97
Digitaria ischaemum (hairy crab grass)
Digitaria sanguinalis (smooth crab grass)
Echinochloa crus-galli (barnyard grass)
Echinochloa muricata var. muricata (barnyard grass)
Eleusine indica (goose grass)
Elymus sp. (wild rye grass)
Eragrostis cilianensis (stink grass)
Eragrostis spectabilis (purple love grass)
Lolium perenne var. perenne (perennial ryegrass)
Muhlenbergia schreberi (nimblewill grass)
Panicum dichotomiflorum (fall panic grass)
Panicum sp. (panic grass) 8/21/99
Panicum virgatum (switch grass) 8/21/99
Phragmites australis (giant reed grass)
Poa annua (annual bluegrass)
Poa compressa (Canada bluegrass)
Poa pratensis (Kentucky bluegrass)
Setaria faberi (nodding foxtail grass) 8/21/99
Setaria glauca (yellow foxtail grass) 8/21/99
Setaria viridis (green foxtail grass)
Spartina alterniflora (salt marsh cordgrass) 8/21/99
Spartina patens (salt marsh hay cordgrass)
Tridens flavus (purpletop grass)
Zizania aquatica (wild rice grass)

Ferns and Fern Allies:
Onoclea sensibilis (sensitive fern)

Piermont Marshes, Rockland County, NY 6/25/54

Spartina cynosuroides
Spartina patens
Spartina alterniflora
Cyperus odoratus
Scirpus acutus
Iva frutescens
Pluchea camphorata
Eclipta alba
J. Harry Lehr; attendance was 10

Piermont Marsh
August 18, 1958

High tidal water confined the activities of the group throughout the day. In the morning, exploration was made of the marsh edge in Tallman Park, while the afternoon was spent on the Piermont pier, which is land-filled, and extends almost a mile into the Hudson River. Two additions were made to the flora of Rockland County which the leader is compiling. They were Polygonum lapathifolium (dock leaved smartweed) and Setaria faberi (nodding foxtail grass). Attendance 8, leader J. Harry Lehr.

Piermont Marshes, Piermont

Samolus parviflorus

Polygonum lapathifolium

Setaria faberi

J. Harry Lehr 8/21/60

Piermont Marsh
August 19, 1984

After getting an overview from Tallman Mountain, we canoed down the Sparkill Creek and entered the marsh from the north. Along the shore of the Sparkill we saw a gradual change from high species diversity to low species diversity as we approached the Hudson River and encountered large stands of
Spartina alterniflora
Lilaeopsis chinensis
Myriophyllum spicatum
Potamogeton perfoliatus
Potamogeton pectinatus
Potamogeton crispus
Elodea nuttallii
were submerged in the creek.

The marsh is dominated by Phragmites australis but has some open meadows dominated by Spartina patens and Scirpus americanus (olneyi) among others. Scattered plants of Hibiscus were growing in the meadows. Zizania aquatica and Scirpus cylindricus were infrequent among Phragmites near the creek and ditch edges. We were able to locate most of the species previously reported from this marsh (Sagittaria subulata, Diplachne maritima, and Polygonum glaucum were not located) in the small portion that we botanized. A list of 62 species occurring in this marsh is available from the leaders.

Leaders: A. E. Schuyler and Naomi Dicker.

PIERMONT PIER, ROCKLAND COUNTY, N.Y. Aug. 21, 1999. On a very overcast day amid intermittent drizzle, a small group of Torrey Botanical Society enthusiasts braved the threat of rain to botanize along Piermont Pier. Fortunately we got in two hours of botany before it a pouring rain started at which time the group called it quits.

Blooming along the pier road was Amaranthus blitum (amaranthus), A. cannabinus (salt marsh water-hemp), and A. hybridus (pigweed), the near fruiting Ambrosia artemisiifolia (common ragweed), Calystegia sepium (hedge bindweed), Chenopodium ambrosioides (Mexican-tea), Cichorium intybus (chicory), Commelina communis (Asiatic dayflower), Daucus carota (Queen Anne's lace), Eclipta prostrata (yerba-de-tajo), flower buds of Eupatorium serotinum (late flowering joe-pye-weed), Euphorbia maculata (spotted spurge), Linaria vulgaris (butter-and-eggs), Lonicera japonica (Japanese honeysuckle) Lythrum salicaria (purple loosestrife), Oenothera biennis (common evening primrose), Phytolacca americana (pokeweed), Plantago major (common plantain), Pluchea odorata (salt marsh fleabane), Polygonum cespitosum (cespitose smartweed), P. lapathifolium (nodding smartweed) and P. pensylvanicum (Pennsylvania smartweed), Saponaria officinalis (bouncing bet), Silene vulgaris (bladder campion), Solanum dulcamara (bittersweet nightshade) and S. nigrum (black nightshade), the near flowering Solidago canadensis var. scabra (goldenrod), the flowering S. juncea (early goldenrod), the near flowering Solidago odora (sweet goldenrod), and Sonchus oleraceus (common sow thistle).

Non-blooming species included Acalypha rhomboidea (three-seeded mercury), Acer negundo (box elder) and A. saccharinum (silver maple), Amorpha fruticosa (false indigo), Celtis occidentalis (hackberry), Pastinaca sativa (wild parsnip), Salix discolor (pussy willow), Scirpus pungens (common three-square bulrush), and Xanthium strumarium var. canadense (cocklebur).

In the salt marsh area were Atriplex hastata (orache) and the blooming Hibiscus moscheutos var. moscheutos (swamp rose-mallow).

Total attendance was 7. The trip leader was Dr. Patrick Cooney. Thanks to Dr. William Standaert and Joseph Labriola for help with plant identification and to Dr. Standaert for the plant list.