Helianthus 



COMPOSITAE 



977 



Helianthus Maximihani Schra 



Map 2136 

 Helianthus qiganleus L. 



~^5 



Map 2137 



Helianthus hirsutus Raf. 



moist, hard, white clay soil in the western part of the Ulinoian drift with 

 other typical prairie plants. It is now found mostly along dredged ditches, 

 roadside ditches, and streams and in low woods. 



Maine to N. Dak., southw. to Va. and Okla. (Watson). 



11. Helianthus Maximiliani Schrad. Maximilian Sunflower. Map 

 2135. This sunflower has probably been introduced into Indiana. I found 

 a few plants on the sandy shore of the east side of Diamond Lake in 

 Noble County with no habitation within half a mile. A large colony was 

 found by Charles M. Ek along the Pennsylvania Railroad in Cass County 

 about 7 miles northwest of Kokomo. It has been reported from Lake 

 County by Peattie but I have not seen his specimen. It was also reported 

 from St. Joseph County by McDonald. This report was based upon my 

 specimen so named by Watson which I am now referring to Helianthus 

 giganteus. 



Minn, and Sask., southw. to Tex. ; adventive eastw. 



12. Helianthus giganteus L. Giant Sunflower. Map 2136. This sun- 

 flower grows in moist or wet mucky soils and is generally found in places 

 such as decadent tamarack bogs, marshes, low borders of lakes, and in 

 wet prairie habitats. It is frequent in our northern counties, becoming local 

 south of the lake area. Doubtless it occurs in southwestern Indiana al- 

 though I have not seen a specimen. 



Maine to Sask., southw. to N. C. and Colo. 



13. Helianthus hirsutus Raf. Map 2137. In the southern part of the 

 state this sunflower generally grows in dry clay soil on the crests and slopes 

 of open black and white oak woods and is found also in like soil conditions 

 along roadsides and fences. In the northern part of the state it is gen- 

 erally found in dry sandy soil on slopes in open black and white oak 

 woodland and in like soil habitats along roadsides. 



Pa. to Wis. and Kans., southw. to Ga. and Tex. 



