Field Trips



Field trips are one of the most important activities of the Society and participation is the best way to increase one’s knowledge of local plants.  Most of the trips are for general study and monitoring of the flora and ecology of an area. Other trips are led by individuals who specialize in certain groups of plants and their trips are planned accordingly. While most trips emphasize plant study, other aspects of natural history are not neglected. Trip participants are always free to ask questions about anything of interest they see. The leader or other members of the group can often supply an answer.

The location may be any place of botanic interest which is usually within 50 miles of New York City.  We are not a hiking club and walking distances are usually not great. Those who come on the field trips are urged to participate in the Society’s other activities as well.  The phone numbers and e-mail addresses (when available) of each leader are given at the end of each trip description.  Trips generally go rain or shine; if in doubt, contact the leader.  Some trips are reachable only by automobile. Those in need of rides and those who are offering rides should post and check for messages on the Torrey Botanical Society Facebook and Twitter sites.  Bus and train schedules listed in trip descriptions are subject to change; those who use public transportation are advised to check updated schedules in advance.  Interested guests and non-members are always welcome on field trips.

Field trip leaders are asked to send full vegetation lists and notes on any new or unusual plants or vegetation types to the Field Chair:

Email: Uli Lorimer
Subject line: “Torrey fieldtrip notes”

These lists, when submitted, will be made available through our website.

I would like to thank all trip leaders for their time and effort in supporting the Torrey field programs.

Happy trails!

Uli Lorimer


The Torrey Botanical Society has scheduled 11 trips for the 2015 field season, including joint trips with the Philadelphia Botanical Club, the Botanical Society of America’s Northeastern Section, the Olive Natural Heritage Society, and Wallkill Land Trust. Also listed are three regional Bioblitzs. Stay tuned, as we will update the list throughout the year.


Saturday, May 9th. Joppenbergh Mountain, Rosendale, Ulster Co., NY

Joint Trip with the Olive Natural Heritage Society and Wallkill Land Trust. Mountain is a dolomitic limestone ridge and hopefully we will be seeing a lot of calciphiles, such as Asplenium rhizophyllum, which has historically been sighted here. If we have time we may be visiting Williams Lake, a nearby site. Bring sturdy foot ware, insect repellent, lunch and beverage. By car: Take NY State Thruway to exit 18 (New Paltz exit). Take left off ramp onto Rte 299 W. Take Rte 299 for 0.3 mi. to N. Putt Corners Rd. Make right onto N. Putt Rd. Take N. Putt Road for approximately 1.4 mi to Shivertown Road. Make left on Shivertown Road. Take Shivertown Road to tee. Make right onto Rte 32 N. Take Rte 32 N approx. 5.9 mi to Rte 213 (Main St., Rosendale). After the bridge make two quick lefts (at Stewarts Shop) onto Rte 213. Take Rte 213 0.4 mi to Rosendale Theatre. Make right onto Hardenburgh Lane (just past theatre). Trailhead is at back of parking lot. By bus: Take Adirondack Trailways Bus to Rosendale (approx. 2 hours). You will need to walk (0.8 mi.) to the trailhead from the bus station. Walk N on Rte 32 over bridge. Just after bridge make two quick lefts onto Main Street. Just past Rosendale Theatre (on your right) turn right on Hardenburgh Lane. Trailhead is at back of parking lot behind theatre. Joppenbergh Be prepared for some wet grounds. Meet at 10:00 am at the trailhead parking behind the Rosendale Theatre in Rosendale. Trip leader: Paul Harwood, 917-502-8010,


Sunday, May 24th. Weir Farm National Historic Site, Wilton, CT

Joint field trip with the Connecticut Botanical Society. The Weir Farm National Historic Site is over 100 acres of fields, hilly woodlands and a lake. The hills are covered with mountain laurel and other native flora. Take Merritt Pkwy to Exit 40 then North on Rt. 7. Continue approximately 11 miles to Rte. 102 traffic light. Turn left onto 102.Take second left onto Old Branchville Rd, turn left at first stop sign onto Nod Hill Rd. Follow 1 mile to top of hill, Parking is on left at 735 Nod Hill Rd. Meet at 10:00 am. Trip leader: Carol Levine, 203-322-2051,


Saturday, May 30th. Bronx Park, Bronx, NY

Corydalis incisa, or incised fumewort, is an East Asian member of the Fumariaceae family recently discovered growing wild on the floodplain of the Bronx River in Bronx and Westchester Counties, New York. This is the first and, so far, only known wild population in North America. The species is fast-growing, highly fertile and reproduces asexually by tubers and sexually by seed explosively ejected from the fruit. The seeds are then carried by floodwaters and possibly also by foraging insects and animals, attracted by the small oily structures (elaiasomes) attached to the seeds.

The Bronx River, New York City’s only freshwater river, flows twenty-four miles through Westchester and Bronx Counties. Incised fumewort currently occupies hundreds of acres along both banks of the River and is especially dense in the Bronx River Forest, just north of The New York Botanical Garden. Join NYBG botanist Daniel Atha for a tour of the Corydalis incisa population on the Bronx River. Meet at 10:00 am at the Botanical Garden Metro North Station. Trip leader: Daniel Atha, 718-514-3922,


Saturday, June 6th. The Ramble and Lake, Central Park, NY

We will explore the woodland and wetland flora and see how restoration efforts have re-vegetated a woodland that was in severe decline. We will also see how these areas are protected in a park that hosts over 40 million visits a year. Wear sturdy walking shoes. It is preferable to bring food and drink as the concessions are expensive and often crowded on weekends. By subway: B and C lines leave you at 79th and CPW, #1 line leaves you on 79th and Broadway (walk 3 avenues east). Meet at 10:00 AM at 79th Street and Central Park West, directly across from the Roosevelt Statue of the Museum of Natural History. Trip leader: Dr. Regina Alvarez, 917-842-5478,


Friday & Saturday, June 12th & 13th. Bioblitz, Watchung Reservation, Union Co., NJ

Visit the Union County, NJ Bioblitz website to learn more about this exciting weekend of surveying the flora and fauna of the Watchung Reservation. On the website, you can get more information about walk-in activities for everyone or register to participate as an expert.


Sunday, June 21st. Cedar Swamps and Associated Pinelands Habitats, Manumuskin and Muskee Creeks, Cumberland Co., NJ

Joint field trip with the Philadelphia Botanical Club. This trip will explore the Pine Barrens areas of the Manumuskin and Muskee Creek watersheds. The focus will be the exploration remote Atlantic white cedar (Chamaecyparis thyoides) swamps in both watersheds, some of which contain record-size specimens (over 10’ in circumference). We will also visit some open bogs. Rare species we will be looking for include Arethusa bulbosa, Chionanthus virginicus, Phoradendron leucarpum, Quercus michauxii, and Schizaea pusilla. We may also visit an historical furnace site to search for Liparis liliifolia, Ophioglossum pusillum, and Platanthera lacera. Local explorer Al Shumate will likely be on hand to assist with navigation. Contract trip leaders for meet up location and time. Trip leaders: Gerry Moore and Uli Lorimer


Sunday, July 12th. Oakwood Beach, Staten Island, NY

Oakwood Beach was one of the most devastated neighborhoods after Hurricane Sandy hit, but the unique native flora that existed throughout this Phragmites dominated landscape survived. We will explore the hummocks that have a stronghold in this area and examine these secret spots of richness and diversity. Locally imperiled species such as Quercus prinoides and Sanguisorba canadensis, along with the state-threatened Iris prismatica are nestled among fields of Phragmites. Come prepared to bushwack through some wet grounds (rubber boots recommended), fend off mosquitos, and protect your legs from thorns. Bring plenty of water, sunscreen, and lunch. By car from NYC: Take the Verrazano bridge and keep to the right of the tolls to exit at 15S, follow signs for Lily Pond Avenue S/Father Capodanno Boulevard and merge onto Lily Pond Ave. Lily Pond Ave turns slightly right and becomes Father Capodanno Blvd. After 2.4 miles, turn right onto Lincoln Ave. Turn left on Hylan Blvd and then turn left on New Dorp Ln. Turn right onto Mill Rd. and then turn left onto Kissam Ave and follow to the end. By bus from the St. George Ferry Terminal: Take the S76 bus to Mill Rd./Guyon Ave stop (40-50min bus ride). Walk 0.2 miles northeast to Kissam Ave and follow to the dead end. Meet at 10:00 AM at the dead end of Kissam Ave off of Mill Rd. in Staten Island, NY. Please RSVP to the trip leader: Heather Liljengren, 203-610-4981,


Saturday & Sunday, July 24th & 25th. Bioblitz, Hillside Environmental Education Park (HEEP) University of Connecticut, Storrs, CT

Visit the University of Connecticut Bioblitz website to learn more about this exciting weekend of surveying the flora and fauna of the Hillside Environmental Education Park. This is a kid friendly event that will include a lot of educational activities as well as the traditional taxonomic work that occurs on Bioblitzes. You can sign-up on the website to participate or contact the Bioblitz organizers.


Saturday & Sunday, August 22nd & 23rd. Intermittent Ponds, Atlantic, Cape May and Cumberland Cos., NJ.

Joint trip with the Philadelphia Botanical Club. This two-day trip continues our efforts to explore ponds that have not been extensively surveyed due to difficult access or their not appearing as ponds (or even wetlands) on the USGS topographic maps (7.5 minute quadrangles), a primary reference for earlier botanists. Rare species we will be looking for include: Boltonia asteroides, Coreopsis rosea, Cuscuta corylii, Dichanthelium wrightianum, Eleocharis melanocarpa, E. quadrangulata, Hypericum adpressum H. denticulatum, H. gymnanthum, Lobelia canbyi, Ludwigia linearis, Muhlenbergia torreyana, Nymphoides cordata, Panicum hemitomon, Pasaplum dissectum, Quercus lyrata, Rhexia aristosa, Rhynchospora filifolia, R. inundata, R. nitens, R. scirpoides, Rotala ramosior, Sagittaria teres, Schoenoplectus smithii, Sclerolepis uniflora, Utricularia purpurea, U. radiata, U. resupinata, Xyris fimbriata, and Xyris jupicai. This trip requires registration. Contact the trip leaders to register and for meeting place and time. Trip leaders: Gerry Moore, and Uli Lorimer,


Friday & Saturday, August 28th & 29thBioBlitz, Delaware Water Gap National Recreation Area

Pocono Environmental Education Center will be hosting a BioBlitz in conjunction with the National Park Service. This 24-hour species survey will take place at a total of 14 sites located within the Delaware Water Gap National Recreation Area. Teams of experts and volunteers will be surveying the sites and documenting their findings in an effort to create a “snapshot” in time of the Park’s biodiversity. In addition to the site surveys, PEEC will host educational outreach programs on site during the BioBlitz. Come out and join them for a day of fun spent exploring what kinds of plants and animals are located on their campus. These activities will begin at 8:00 am on Saturday, August 29th and run until 5:00 pm that evening. They will have a schedule of events posted closer to the start of the BioBlitz. If you are interested in participating, or would like more information about the event, contact Derek Scott at 570-828-2310 ext 234 or To register for the Bioblitz, complete the Bioblitz Registration Form and email it to


Saturday, September 5th. The New York Botanical Garden, Bronx, NY

With twenty species in the northeastern United States, the genus Persicaria (smartweeds) ranks among the largest genera of flowering plants in the region, just behind milkweeds and sunflowers. Many are native wetland species whose seeds are an important food source for waterfowl. Others such as the East Asian mile-a-minute vine can inflict great ecological and economic harm. On this field trip, Daniel Atha will point out the native and naturalized species growing on the Garden grounds, indicating unique characters for identification. Meet at 10:00 am at the Botanical Garden Metro North Train Station. Trip leader: Daniel Atha, 718-514-3922,


Sunday, September 13th. Flora Neglecta, Cross Bay and Woodhaven Blvds., Queens, NY

Joint field trip with the Long Island Botanical Society. We will be making a variety of stops off of Cross Bay and Woodhaven Blvds. in Queens to look at overlooked weeds. Our Flora Neglecta will include some tiny plants growing in sidewalk cracks, graminoids, genera that contain similar looking species for which we will make comparisons (ie. Digitaria, Galinsoga and Oxalis) and a few local weeds not often encountered. We will also make a quick stop in a greenhouse to look at some of the unusual weeds growing inside along the walls, some of which are not known from our area. Contract trip leader for meet-up location. Trip leader: Michael Feder,


Saturday, October 3rd. Lichen Walk, Central Park, New York, NY

Lichens are symbiotic organisms formed by fungi and algae, and in many ways are like the corrals of the land. They are very sensitive to air pollution, and were almost extirpated from New York City. However, over 20 species were recently documented from Central Park. Come to learn about these remarkable symbioses and how to identify many of the common species in New York City. Bring a hand lens for the best possible lichen-viewing, and wear clothing appropriate for the weather. The field trip will last about two hours. Meet at 10:00 am at the southeast corner of Central Park West and 77th Street. Trip leader: Jessica Allen,