46 FLORA OF THE UPPER SUSQUEHANNA. 



yellow. Our plant is supposed to be the wild form of the culti- 

 vated parsnip, and to be poisonous. , It is doubtful if this latter 

 opinion is correct. 



THASPIUM Nl-tt. 



T. trifoliatum aureum (Nutt. ) Britton. Meadow Parsnip. Gold- 

 en Alexanders. Xevy common in meadows, thickets and open 

 woodlands; the radical leaves resembling those of the marsh 

 marigold. {T. aiireum Nutt.) 



T. barbinode (Michx.) Nutt. Golden Alexanders. Frequent 

 in meadows. Graves. In alluvial soil, Lucy. Near Waverly, 

 Millspaitgh. Elsewhere not reported, although it doubtless 

 occurs. 



PIMPINELLA L. 



P. integerrima (L. ) A. Gray. Golden Alexanders. Common 

 from Susquehanna county west. Not reported northward. 

 Found in rocky ground. Leaflets entire. 



DERINGA Adans. 



D. Canadensis (L. ) Kuntze. Honewort. Frequent in moist, 

 rich soil, especially in woodlands. {Cryptotcema Canade7isis 

 DC.) 



SIUM L. 



S. cicutaefolium J. P. Gmel. Water Parsnip. Not uncommon 

 throughout our range in marshy places. 



ZIZIA Koch. 

 Z. aurea (L. ) Koch. Golden Alexanders. Tolerably common 

 from Susquehanna county west. Not noted northward. Earlier 

 flowering than our species of Thaspiiun. Rays of the umbel 

 longer and more numerous. Graves. 



Z. cordata (Walt.) DC. Heart-leaved Zizia. Common. Found 

 in the same places as ^the preceding and has the same range. 

 The radical leaves are heart-shaped or nearly round, long pet- 

 ioled and blunt-toothed, rarely lobed, Graves. 



CARUM L. 



C. Carui L. Caraway. Becoming common along roadsides, 

 about dooryards, etc. Easily mistaken for the wild carrot. 



