329] FLORA OF COLUMBIA AND VICINITY 1S7 



286. SIUM L. Water parsnip. 



698. S. cicutaefolium Gmel. 

 Swamp at Brushwood lake. 



Newfoundland to British Columbia; Florida to Cali- 

 fornia. 



287. FOENIOULUM L. Fennel. 



699. F. vulgare Gaertn. [F. Foeniciihtm (L.) Karst.]. 

 Yards; rare. 



Europe, thence to the United States. 



288. THASPIUM Nutt. Meadow parsnip. 



700. T. aureum Natt. \T. trifoliatum aureum (Nutt.) 

 Britton]. Golden meadow parsnip. 



Woods and thickets; common. 



New England to Wyoming and Oregon; Georgia to 

 Arkansas. 



701. T. cordatum T. & G. [T. aurcmn cordatum (T. & G.) 

 B. S. P., not (Walt.) B. S. P., Walter's plant being Z/.s/^ 

 c£?ri^rt'/rt: (Walt.) DC: T. aureum trifoliatum Coult. & 

 Rose].* Heart-leaved meadow parsnip. 



Frequent on dry hills: the plants have simple cordate 

 basal leaves, or in some plants, all the leaves are simple; 

 scarcely to be distinguished in flower from Zizia cordata 

 (Walt.) DC. 



Ohio to Oregon. 



702. T. barbinode (Michx.) Nutt. 

 Common on the banks of streams. 



New York and Ontario to Minnesota; Florida to 

 Arkansas. 



•If the name cordatum be thought untenable on account of the 

 former confusion of Zizia with Thaspium, the name Thaspium Ziziopsis 

 is suggested as suitable for this plant, which stands in the same relation 

 to T. aureum Nutt. as Z. cordata (Walt.) DC does to Z. aurea (L.) 

 Koch. But as Nuttall's T. aureum is allowed to stand in spite of a lilce 

 confusion, so the term T. cordatum may be allowed, going back only 

 to T. & G. and excluding the reference to Walter. 



