FLORA OF WASHINGTON AND VICINITY. 85 



Galium concinnum, Torr. & Gray. Bedstuaw 

 First half of June. 



t Galium trifidum, L. Small Bedstraw. 

 Last of May. 



t Galium triflorum;, Michx. Sweet-scented Bedstraw. 

 July. 



t Galium pUosumi, Ait. 



Last of May and first half of June. 



t Galium circaezans, Micbx. Wild Liquorice. 

 Last of May and first half of June. 



VALERIANACE^. 



Valerian Family. 



Valeriana pauciflora, Michx. Valerian. 



High Island; Larkspur Island. Third week in May. 



Fedia oZifona, Vahl. [FaJerioneWa, Benth. &Hook., Gen. PI.] Corn-Salad. Lamb- 

 Lettuce. 

 Insane Asylum ; Green Spring Schuetzen Park. Last of April or first half of 

 May. 



Pedia Fagopyrum, Torr. & Gray. 



High Island (Professor Chickering). 



tFedia radiata, Michx. 



Near the Distributing Reservoir; rare. Middle of May. 



DIPSACE^. 



Teasel Family. 



iDipsacua sylvestris, Mil\. Wild Teasel. 



Along the Potomac, on the flats from the Outlet Lock to High Island. Last half 

 of July. 



COMPOSITE. 



Composite Family. 



tVernonia Noveboracensis, Willd. Iron- weed. Flat-Top. 

 Heads very variable in size. July to September. 



t Elephantopus Carolinianus, Willd. Elephant's-foot. 



August. 



tEupatoriumpurpureum, L. Joe-Pye Weed. Trumpet- weed. 



A form occurs with nearly white flowers, green sterns^ thin leaves, and blackish 

 joints to the stem. August, September. 



tEupatorium hyssopifolium, L. 



Not common. Roots thickening almost into tubers. Last of August to October. 



tEupatorium album, L. 



Varies in the width and thickness of the leaves. Late in July and through 

 August. 



