94 The American Flower Garden 



*PENTSTEMON (Pentstemon l&vigatus, var. Digitalis). White. May to 

 July; 4 to 5 feet. Any well-drained soil in open places. Easily 

 naturalised, and sometimes becomes a weed in meadows. Tubular 

 flowers in lax panicles. (For GARDEN PENTSTEMON, see HERBAC- 

 EOUS PLANTS, p. 217.) 



PHLOX, WILD BLUE (Phlox divaricatd). Gray-blue. April to June; 

 i J feet. Along edges of moist woods. Valuable for its colour at its 

 season. Short pyramids of flowers, faintly fragrant. 



*PICKEREL WEED (Pontederia cordata). Blue. June to October; 2 to 

 4 feet. Wet and swampy lands. Flowers in dense spikes borne 

 above the foliage. Best strong-growing plant on stream and pond 

 borders. 



PRICKLY PEAR (Opuntla vulgaris). See HERBACEOUS PLANTS, p. 227. 



*QuEEN OF THE PRAIRIE (Ulmaria rubrd). Pink. June, July; 2 to 

 8 feet. Large panicles, slightly fragrant. Moist grounds and open 

 meadows. Excellent for wild effects on large areas. 



RATTLESNAKE PLANTAIN (Goodyera pubescent). White. August; i foot. 

 Leaves mottled with white. Flowers in a terminal spike. Easiest 

 woods orchid to naturalise in ordinary loam, mixed with pine 

 needles and twigs. Native in damp woods. 



ROSE, PRAIRIE (Rosa setigera). Pink flowers, fading whitish. June, 

 July; 6 feet or more. Best climber. For shrubby effects on dry 

 ground R. lucida, 6 feet, with red stems and fruits showy all winter. 

 On moist ground, R. Carolina,* 8 feet. 



*SKUNK CABBAGE (Symplocarpus fatidus). Bright, yellow green, bold 

 foliage in earliest spring; i foot. Moist dells. Very effective. 



SNAKEROOT. See WHITE SNAKEROOT. 



*SNEEZEWEED (Helenium autumnale). Bright yellow. August to 

 October; i to 2 feet. Best large yellow, daisy-like flower for 

 summer and fall. For swamps and wet meadows. Will also 

 grow in open border. Var. superbum, 4 feet, with flowers 3 

 inches across. 



*SOLOMON'S SEAL (Polygonatum biflorum). White flowers in arching 

 sprays, with the leaves. June; I foot. Black berries in fall. Moist 



shade or rich soil in the open. , FALSE (Smilacina racemosd). 



White, i to 2 feet. Flowers in terminal, foam-like sprays. Moist 

 shade, preferably well drained. 



