MICHIGAN WEEDS. 



369 





WOOD SORREL FAMILY. 

 OXALIDACEAE. 



A small family containing about 270 species, 

 with clover-like leaves, sour to the taste. 



Fig. 129. 



Yellow Wood Sorrel. Oxalis comiculata 

 L. {Oxalis cymosa.) Annual or perennial, pale 

 green herbs, spreading, 15-30 cm. high; leaflets 

 three, closing when touched or at night; 

 flowers yellow; capsule five-sided, 15-22 mm. 

 long. Woods and fields, native to this country. 



GERANIUM FAMILY. GERANIACEAE 



A small family of herbs or slightly woody 

 plants of 450 species, most abundant in South 

 Africa, where thrive many of the species now 

 in cultivation. 



Fig. 130 (116). 



Storks bill. Alrllaria. Er odium cicuta- 

 rium (L.) L'Her. A spreading, hairy annual, 

 15-30 cm. high; leaves pinnate, the leaflets 

 more or less lobed; petals purple or pink. 

 Introduced from Europe. 



