Of the plant families most susceptable to aminopyralid, those most likely to be found in a garden, small-holding, or allotment are listed below. Please note that examples of species within a family is not exhaustive:
Solanaceae (includes potatoes, tomatoes and aubergines)
Fabaceae (includes peas and beans, alfalfa, clover, vetch, lupin and sweet pea)
Asteraceae (includes lettuces, chicory, globe artichokes, chamomile, tarragon, marigolds, chrysanthemums, dahlias, sunflowers and daisies)
Apiaceae (includes carrots, parsnip, fennel, celery, parsley, cumin, coriander, dill, caraway, chervil, angelica, lovage, and anise)
Alliaceae (includes onions, shallots, garlic,leeks, chives, alliums and lillies)
Ranunculaceae (includes rue, clematis, delphiniums and aconites)
Rosaceae (includes apples, blackberries, raspberries, strawberries, apples, pears, peaches, cherries, apricots, roses and cotoneaster)
Polemonaceaea (includes jacob’s ladder and phlox)
Of these, it would seem that some are more likely to be affected than others. Potatoes, tomatoes, aubergines, peas, beans, lettuce and carrots are most frequently mentioned in reports, although this may be connected to the popularity of such crops, and the fact that manure is more likely to have been used on them.
To see what plants affected by aminopyralid look like, see here