RIVERSIDE PARK
Manhattan, NY
June 2, 1990

The walk started at 72nd Street and ended at 113th Street. About equal emphasis given to the study of native plants, adventives, and horticultural specimens. A few noteworthy planted trees and shrubs were Yellowwood (Cladrastis lutea), Katsura Tree (Cercidiphyllum japonicum), Chokeberry (Aronia sp.), Chinese Witch Hazel (Hamamelis mollis), European Hornbeam (Carpinus betulus), Beauty Bush (Kolkwitzia amabilis), Japanese Snowbell (Styrax japonica), Fragrant Sumac (Rhus aromatica), and several species of Viburnums, Lindens, and Oaks.

The community garden at 92nd Street was in fine bloom, and trip participants noted many familiar genera, including Aquilegia, Primula, Mazus, Salvia, Stachys, Linum, Rosa, Iris, Allium, and Lychnis.

Some native and naturalized herbaceous species observed during the trip, that have not been listed for previous urban botany walks in Manhattan, included Wild Barley (Hordeum leporinum), Orchard Grass (Dactylis glomerata), Deertongue Grass (Dichanthelium clandestinum), Downy Brome (Bromus tectorum), Clearweed (Pilea pumila), Corn Speedwell (Veronica arvensis), Poison Ivy (Toxicodendron radicans), Japanese Hops (Humulus japonicus), Winter Cress (Barbarea vulgaris), Multiflora Rose (Rosa multiflora), Black Locust (Robinia pseudoacacia), Honey Locust (Gleditsia triacanthos), Great Ragweed (Ambrosia trifida), and Common Mallow (Malva neglecta). Native ferns included Sensitive fern (Onoclea sensibilis) found growing in sever places, and Hay-scented Fern (Dennstaedtia punctilobula), Ebony Spleenwort (Asplenium platyneuron), Spinulose Woodfern (Dryopteris spinulosa) and Fragile Fern (Cystopteris fragilis) growing from crevices in the retaining wall that borders the park.

Trip attendance was 18, and included member so the TBC and the New York City Audubon Society. The leaders were Naomi Dicker and Joyce Hyon.