Astragalus wootoni

Astragalus spp. Members of this genus are included in the group of loco weeds causing disease in cattle in the United States. From A. carlei. Pease and Elderfield isolated a- and j3- earleines, which were later shown by Stempel and Elderfield to be betaine and choline respectively these are also present in A. wootoni, along with trigonelline (p. 7). ( (1) J. Org. Chem., 1940, 5, 192, see also p. 198 (2) Ibid., 1942, 7, 432 J. Amer. Chem. Soc., 1941, 63, 315. (3) Knowles and Elderfield, J. Org. Chem., 1942, 7, 389). 

---