118 BRECK'S BOOK OF FLOWERS. 



D. speciosum. Showy Dragon's-Head. Pink flowers, in 

 July and August; three feet high; a native of Siberia. 



D. Sibiricum. Siberian Dragon's-Head. One foot high, 

 from Siberia, with light-blue flowers, in July and August. 



EPILOBIUM. 



Willow Herb. 



Epilobium, from Greek words, signifying a flower grow- 

 ing upon a pod. E. augtistifolium, and other species, are val- 

 uable in shrubberies as thriving under the drip of trees, and 

 succeed everywhere, even in the smoke of cities, and in parks. 

 It is a good plant to adorn pieces of water, being hardy, and 

 of rapid increase, and very showy when in flower. 



The species E. spicatum and . coloratum are indigenous, 

 and may be found growing in great luxuriancy on newly- 

 cleared land, among the raspberry bushes, and in other locali- 

 ties. It produces dense spikes of purplish red flowers, three or 

 four feet high, in July and August. It is often thought to be 

 a species of Phlox, by persons unacquainted with botany, as at 

 a short distance it has some resemblance to some of that family ; 

 but, upon examination, it will be found to be very different. It 

 is easily propagated by cuttings of its long, straggling roots. 

 It is found growing in rather a light soil. 



ERYTHRONIUM. 



Dog's-tooth Violet. 



E. Americanum, Yellow-flowered Dog's-tooth Violet, 

 is a beautiful native plant, found in moist woods and thickets. 

 Its roots are bulbous, running deep into the ground ; they cannot 

 be removed in safety in the spring ; in July, they may be 

 carefully dug up and planted in a shady place in the garden. 

 Flowers yellow in May ; three inches high. 



