Flora of the Allegany State Park Region 83 



Roripa palustris (L.) Bess., Radicula palustris, Gray's 

 Man. Marsh Cress 

 In wet or marshy, usually alluvial soil, along the 

 lower stream courses and bottomlands of the Alle- 

 gheny and T.unungwant valleys. Infrequent. 

 Nasturtium Nasturtium-aquaticum (L.) Karst., 

 Radicula Nasturtium-aquatica. Water Cress 

 In quiet waters and brooks. Rare. Stetson pond 

 near Randolph. 

 Armoracia rusticana Gaertn., Radicula Armoracia, 

 Gray's Man. Horse-radish 

 In rich soil. Occasional in cultivation and rarely 

 established in low grounds of the Allegheny valley. 

 Barbarea vulgaris R. Br. Winter Cress, Yellow 

 Rocket, Spring Mustard 

 In moist cultivated soil, roadsides and fields, 

 occasional in the park area and more abundant in 

 the surrounding valleys. 

 Dentaria diphylla Michx. Crinkleroot, Toothwort, 

 Pepperroot 

 Rich woodlands and ravines in moist humus, or 

 in alluvial soil along streams. Frequent. 

 Dentaria laciniata Muhl. Toothwort, Crinkleroot 



Moist rich woodlands and ravines, and less fre- 

 quent on the alluvial bottomlands. Common. 

 Cardamine bulbosa (Schreb.) BSP. Spring Cress 



In wet or moist alluvial soil of woodlands and 

 thickets in the Allegheny valley. Rare. 

 Cardamine pennsylvanica Muhl. Woodland Cress 



In moist or wet places along streams and springy 

 or wet places in open woodlands. Common. 



