Among rare species found in the Jayne Park Marsh include Water Willow, also found at Dufferin islands, the Hairy Hedge nettle and the Clearweed
, which is a species listed on the New York State Rare plant Status List of the New York State Dept.
Only a few species, however, have consistently been found in nearly all seeps examined, including Agrostis gigantea (red top), Aster lateriflorus (side-flowering aster), Carex lurida (lurid sedge), Equisetum arvense (common horsetail), Eupatorium perfoliatum (perfoliate bone set), Glyceria striata (fowl manna grass), Impatiens capensis, Leersia virginica (white grass), Mimulus ringens (sessile monkey flower), Lobelia siphilitica (great blue lobelia), and Pilea pumila (clearweed
Also useful for introduction in clearweed
grown stagnant waters for malaria vector control.
Even shade-tolerant sugar maple seedlings are inhibited by honeysuckle, and native annuals such as jewelweed and clearweed
Intermingled in the understory are the following frequently encountered vines and herbs: Acmella oppositifolia (oppositeleaf spotfiower), Boehmeria cylindrica (smalispike false nettle), Brunnichia ovata (American buckwheatvine), Justicia ovata (looseflower waterwillow), Leersia lenticularis (catchfly grass), Leersia oryzoides (rice cutgrass), Lycopus rubellus (taperleaf waterhorehound), Mikania scandens (climbing hempvine), Pilea pumila (Canadian clearweed
), Pluchea camp horata (cam phor pluchea), Saururus cernuus (lizards tail), Triadenum walteri (greater marsh St.
Pinus pine Poaceae grass family Polygala verticillata L.
(#) Pika fontana (Lunell) Rydb.; Bog or lesser clearweed
; Northern meadow; Rare; C = 5; BSUH 17298.
17: The second-to-last wave of late-summer wildflowers, clearweed
, virgin's bower, white boneset, field thistle and Japanese knotweed, come into bloom.
The irrigated forest had dense ground cover (Mastrota et al., 1989), consisting mainly of clearweed
(Pilea pumila), garlic mustard (Alliaria petiolata), pokeweed (Phytolacca americana) and white snakeroot (Eupatorium rugosum) .
Gray; Canadian Clearweed
; Floodplain woods; Abundant; C = 2; BSUH 17354.
Prickly mallow, field thistle, clearweed
, willow herb and Japanese knotweed blossom in the woods and alleys.
The first week of August brings white snakeroot, boneset, clearweed