Milkweed

plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

underside of leaf of plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

upperside of leaf of plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

plant in shallow roadside drainage on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub.

on disturbed mound of gravel dumped over mineralized clay flats. A known Monarch host plant.

on disturbed mound of gravel dumped over mineralized clay flats. A known Monarch host plant.

on disturbed mound of gravel dumped over mineralized clay flats. A known Monarch host plant.

on disturbed mound of gravel dumped over mineralized clay flats. A known Monarch host plant.