372 



ARBORETUM INDEX 



Red-hot poker plant, torch lily.. 82 



Tritoma 

 Reed, plumed ravenna 87 



Erianthus ravennae 

 Retinospera or Japan cedar . . 77, 95 

 Rheumatism root 97 



Jeffersonia diphylla 

 Rhododendron 87 



Rhododendron 

 Rhubarb 97, 99 



Rheum 

 Ribbon grass 87 



Phalaris picta 

 Ricinus, palma christi, castor oil 



bean 95 



Rock cress 88 



Arabis 

 Rose 78, 94 



Rosa 



Rosa rugosa 87 



Rose tree 94 



Rosemary willow 85 



Rosmarinifolia 

 Rosin-weed, compass plant 98 



Silphium terebinthinaceum 

 Rue 96 



Ruta 



Sage... 97 



Salz'ia 

 St. Bruno's lily 88 



Anthericum 

 St. John's wort 98 



Hypericum 

 St. Peter's wort 98 



Ascyrum 

 Sarsaparilla, wild 97 



Aralia nudicantis 

 Sassafras 84, 97 



Sassafras officinale 

 Saxifrage 95 



Saxifraga 

 Scarlet lightning 97 



Lychnis calcedonica 

 Scilla 88 



S cilia 

 Scotch broom 89 



Cytisus scoparius 

 Self-heal 97 



Prunella vulgaris 

 Senna, wild 97 



Cassia marylandica 

 Sensitive plant 89 



Mimosa pudica 

 Shad bush 97 



Amelanchier canadensis 

 Sheepberry 97 



Viburnum lentago 

 Silk tree 102 



Albiszia julibrissin 

 Silver fir, Eraser's 95 



Abies fraseri 

 Silver poplar 80 



Populus alba 



Silver thorns 102 



Elaeagnus longipes 

 Sitfast 98 



Ranunculus repcns 

 Skull cap or mad dog skull cap 98 



Scutellaria 

 Skunk cabbage 81, 97 



Symplocarpus 

 Smartweed 97 



Polygonum pennsylvanicum 



Smocks and tresses 98 



Snakeroot, white 97 



Eupatorium ageratoides 

 Sneezeweed 88 



Helenium 

 Sneezewort, pearl 88 



Ac hill ea p tar mica 

 Snowball, Japanese 87, 103 



Viburnum plicatum 

 Snowberry 81 



Symphoricarpus racemosus 

 Snowdrop 81 



Galanthus 

 Snow-in-Summer 88 



Cerastium tomentosum 



Sophora japonica 85 



Sorrel, sheep, plant of the cen- 

 turies, autumn color in 

 summer 97 



Rumex acetosella 

 Spanish bayonet 81 



Yucca 

 Spearmint 97 



Mentha spicata 

 Spice bush 97 



Lindera 

 Spiderwort, blue 97 



Tradescan tia virginiana 

 Spikenard 97 



Aralia racemosa 

 Spindle tree, wide-stemmed 101 



Euonymous alatus 

 Spirea (meadow sweet) Quaker 



lady 57, 78 



Spirea 



Spirea, blue 88 



Spring beauty 96 



Claytonia 

 Spruce, Colorado blue 95 



Picea kosteriana 

 Spruce, Norway 86 



Picea excelsa 

 Spruce, white or cat 95 



Picea alba 

 Spurge 88 



Euphorbia 

 Squaw-root 98 



Canopholis americana 

 Squirrel corn 97 



Dicentra canadensis 

 Star grass 97 



Hypoxia 



