PLANT STUDIES IN LYON COUNTY 
413 
PLANT LIST— Continued 
Sta. I 
Sta. II 
Sta. til 
Sta. IV 
Andropogon furcatus Muhl 
+ 
Anemone patens var. Wolfgangiana (Bess.) 
Koch 
+ 
Antennaria plantaginifolia (L.) Rich 
+ 
Artemesia ludoviciana Nutt 
-p 
Aster oblongifolius Nutt 
1 
+ 
Aster sericeus Vent 
+ 
Astragalus carvocarpus Ker 
+ 
Bouteloua curtipendula (Michx.) Torr 
+ 
Brauneria angustifolia (DC.) Heller 
+ 
Ceanothus americanus L 
+ 
Gerardia tenuifolia Vahl 
4- 
Grindellia squarrosa (Pursh.) Dunal 
+ 
Helianthus scaberrimus Ell 
+ 
Kuhnia eupatorioides var. corymbulosa T. 
& G 
-P 
Lactuca canadensis L 
+ 
Liatris punctata Hook 
+ 
Linum usitatissimum L 
+ 
Lithospermuni canescens (Michx.) Lehm... 
+ 
Lithospermum Gmelini (Michx.) Hitchc. ... 
+ 
Lithospermuni latifolium Michx 
+ 
Lygodesmia juncea (Pursh.) P. D. Don 
+ 
Oenothera serrulata Nutt 
+ 
Oxytropis Lamberti Pursh 
+ 
Pentstemon gracilis Nutt 
+ 
Petalostemum candidum Michx 
+ 
Petalostemum purpureum (Vent.) Rydb.... 
+ 
Physalis pubescens L 
+ 
Setaria glauca (L.) Beauv 
+ 
Solidago missouriensis Nutt 
+ 
Solidago nemoralis Ait 
+ 
Viola pedatifida G. Don 
+ 
SUMMARY. 
The northwest portion of Iowa, because of the nature of its 
topography and its dry climate, is almost destitute of woodland, 
and its flora is characterized by a large percentage of plants 
specially adapted to withstand severe drought. The forests of this 
region are very similar in make-up and appearance to the forests 
farther east, while th$ upland flora is made up of dry-prairie 
species. 
In a particular representative locality in this region the plants 
group themselves in very definite fashion as is shown in the 
tabular summary of the flora for the several stations studied and 
summarized in percentages at the end of the list. The marked 
variations in lists correspond well with the marked changes in 
conditions found at the several stations. 
