Iowa Plant Notes

Recently quite a number of plants new to the State or noteworthy for other reasons, have come under the writer\u27s observation, and it seems well at this time to place these on record. For many years after the settlement of the State the introduction of exotic species was comparatively slow, and was largely confined to those grasses and weeds which were introduced in grain seed, but of late years we are rapidly approaching the condition of the floras found in the Atlantic States where an astonishing number of plants have been introduced, largely of European origin. With us, too, the main east-and-west railroad lines crossing the State have been very effective agents in scattering western seeds along their rights-of-way, and from thence to the adjoining farms. Fortunately, however, few of these latter are apt to become troublesome