118 CATALOG OF PLANTS. 



842. Bidens frondosa L. Beggar-ticks.— Common on damp ground 



and as a weed in villages and adjacent fields. 



843. Bidens comosa (Gray) Wiegand. Leafy-bracted tickseed.— 



Noticed in clamp rich ground below Grindstone City and from 

 there to White Rock. Probably frequent in rich ground 

 throughout the sand region. 



844. Bidens connata Muhl. Swamp beggar-ticks. — In swampy places, 



ditches, and on the borders of damp cultivated fields, from 

 Grindstone City to White Rock. Probably common through- 

 out Huron County. 



845. Bidens cernua L. Stick-tight; small bur-marigold. — Frecjuent 



in open wet places. 



846. Bidens laevis (L.) BSP. Larger bur-marigold. — Occasional in 



wet and swampy places along the lake shore, from Grind- 

 stone City to White Rock. Probably common throughout 

 Huron County. 



847. Bidens trichosperma (Mich.) Britton. Tickseed sunflower. — In 



wet swampy places at Sand Point and near Rush Lake. 



848. Bidens trichosperma tenuiloba (Gray) Britton. Tickseed sun- 



flower. — Occasional on swampy ground about Rush Lake. 



849. Helenium autumnale L. Sneeze^veed. — Occasional on damp 



ground from Grindstone City to White Rock. 



850. Achillea millefolium L. Common yarrow. ^ — A common weed 



along roadsides, in villages and adjacent fields. 



851. Anthemis cotula L. Mayweed. — Common in villages and about 



country dwellings. 



852. Chrysanthemum leucanthemum pinnatifidum Lecocj. tt Lamotte. 



Ox-eye daisy ; marguerite. — A few specimens noticed on the 

 north side of Stony Island and near Port Austin. Not no- 

 ticed as a weed in the cultivated fields adjacent to the sand 

 region. 



853. Tanacetum vulgare L. Common tansy. — Frecjuent as an escape 



in villages and about country dwellings. 



854. Artemisia caudata Michx. Tall wormwood. — Common on sand 



along the lake shore and seldom far away from the lake. 



855. Artemisia vulgaris L. Common mugwort. — On North Island 



near an old stable. 



856. Artemisia stelleriana Bess. Beach wormwood; dusty miller; 



old woman. — Often cultivMed. More than ten years ago 

 Davis noted and reported this as an escape from cultivation 

 to sandy ground, saying: "This plant is well established in 

 the sand of a roadside dune between Port Austin and Port 

 Crescent where it covers a large space. It is also abundant 



