322 The Ohio Journal of Science [Vol. XVII, No. 8, 



1. Barbarea Barbarea (L.) MacM. Yellow Winter-cress. 

 Stems erect, glabrous, 1-2 ft. high, often in tufts; basal leaves 

 rosulate, 2-5 in. long, lyrate with a large rounded terminal 

 division, and 1-4 pairs of lateral segments; upper leaves nearly 

 or quite sessile, obovate, cut-toothed at the base; flowers 

 bright yellow; pods obtusely 4-angled, 1 in. long on slender 

 spreading pedicels. The thick basal leaves are found in winter 

 and used as a salad. 



Indigenous in the Northwest, but apparently introduced 

 in the Eastern States. General. 



2. Barbarea stricta Andrz. Erect Winter-cress. Stem 

 and leaves similar to B. barbarea, except that the lateral 

 divisions of the leaves are broader and more acute; flowers 

 pale yellow, corymbose, the rachis elongating in fruit; pods 

 erect, appressed. 



In fields and meadows, naturalized from Europe. Erie 

 County. 



3. Barbarea verna (Mill.) Aschers. Early Winter-cress. 

 Similar to B. stricta, but less stout, except the pedicels which are 

 stouter; leaves 4-8 pairs of lateral segments; pods 1-3 in. long, 

 sharply 4-angled, slightly compressed. 



Introduced from Europe, and flowering earlier than the 

 other species. Sometimes cultivated for salad and called 

 Scurvy-Grass. Belmont, Harrison, Portage, Preble. 



25. lodanthus T. & G. Purple Rocket. 



Perennial erect glabrous herbs, with dentate or lyrate 

 leaves, and purplish flowers in panicled racemes. Siliques 

 long, linear, somewhat flattened. Seeds oblong, wingless, 

 in 1 row in each cavity. A monotypic genus. 



1. lodanthus pinnatifidus (Mx.) Steud. Purple Rocket. 

 Stem slender, branching, 1-3 ft. high; lower leaves ovate or 

 cordate, sometimes lyrate, dentate, 2-8 in. long, tapering 

 into a long margined petiole which is clasping at the base; 

 stem-leaves smaller, ovate-lanceolate, the upper nearly sessile; 

 flowers many, small, lavender-purple; pods about 1 in. long, 

 spreading or ascending. 



Indigenous on low river banks or creeks. Rather general. 



