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. Sibericum. 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. augustifolium, 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 E. 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. 



