officinalis, Mollugo verticillata, Pastinaca sativa, Plantago lanceolata, Polygonum cespitosum, P.
Mollugo verticillata L.: (*,+); Carpetweed; infrequent; disturbed areas and cindery area; BSUH 10679, 11409.
The most important species in the seed bank were a native perennial forb Antennaria plantaginifolia (IV = 63.7), an introduced annual Mollugo verticillata (30.6), and two native annuals Conyza canadensis (19.1) and Linaria canadensis (15.4).
Antennaria plantaginifolia and Mollugo verticillata, ranked first and second in importance value in the seed bank, respectively, were not encountered in the vegetation sampling, although rare individuals of A.
Density of perennials was driven primarily by Antennaria plantaginifolia, whereas density of annuals was more evenly distributed, with four species dominating (Mollugo verticillata, Conyza canadensis, Linaria canadensis and Triodanis perfoliata) (Table 1).