GENUS 31. 



MUSTARD FAMILY 



i. Barbarea Barbarea (L.) MacM. Yel- 

 low Rocket or Cress. Fig. 2065. 



Erysimum Barbarea L. Sp. PI. 660. 1753. 



Barbarea vitlgaris R. Br. in Ait. Hort. Kew. Ed. 2, 



4: 109. 1812. 

 Barbarea vulgaris var. arcuata A. Gray, Man. Ed. 2, 



35- 1856. 

 Barbarea Barbarea MacM. Met. Minn. 259. 1892. 



Tufted, stems erect, i-2 high. Lower leaves 

 petioled, 2'-$' long, pinnatifid ; terminal division 

 much larger than the 1-4 pairs of lateral ones, 

 all oval or obovate, repand-toothed or sometimes 

 entire; upper leaves sessile or nearly so, some- 

 times clasping; flowers bright yellow, 3"-4" broad; 

 pods spreading or ascending, about i' long, ob- 

 scurely 4-angled ; pedicels about 2" long. 



In fields and waste places, Labrador to southern 

 New York and Virginia and locally in the interior. 

 Also on the Pacific Coast. Naturalized from Europe. 

 Leaves thickish, shining above. April-June. Bitter, 

 winter- or rocket-cress. Winter- or wound-rocket. 

 Herb Barbara. 



2. Barbarea stricta Andrz. Erect- 

 fruited Winter Cress. Fig. 2066. 



Barbarea stricta Andrz. in Bess. Enum. PI. Volh. 



72. 1821. 

 Barbarea vulgaris var. stricta A. Gray, Man. Ed. 



2, 35- 1856. 



Similar to the preceding species, about 

 equally tall. Lateral segments of the leaves 

 comparatively larger; flowers pale yellow; 

 pods obtusely or obscurely 4-angled, about i' 

 long, erect and appressed against the rachis 

 of the raceme on erect or ascending slender 

 pedicels. 



In fields and waste places, Quebec to Alaska, 

 south to Virginia and Nebraska. Recorded from 

 Florida. The plant is apparently naturalized from 

 Europe in the East, but is reported as indigenous 

 in the North and Northwest. It is abundant in 

 northern Europe and Asia. Leaves shining above. 

 April-June. 



3. Barbarea verna (Mill.) Aschers. 



Early Winter Belle Isle or Land 



Cress. Fig. 2067. 



Erysimum vernum Mill. Card. Diet. Ed. 8, No. 3. 



1768. 

 Erysimum praecox J. E. Smith, Fl. Brit. 2 : 707. 



1800. 

 Barbarea praecox R. Br. in Ait. Hort. Kew. Ed. 2, 



4: 109. 1812. 

 B. verna Aschers, Fl. Prov. Brandenb. i : 36. 



1864. 



_ Closely resembles the last species. Divi- 

 sions of the leaves more numerous (4-8 

 pairs) ; pods sharply 4-sided, slightly com- 

 pressed, i4'-3' long, borne on stout pedicels. 



In waste places, Massachusetts to southern New 

 York, Pennsylvania, Tennessee and Florida. Ad- 

 ventive from Europe. Sometimes cultivated for 

 salad. Bank-, American- or Bermuda-cress. In 

 the Southern States called scurvy-grass. April- 

 June. 



