Coadunate(a.) United at the base, as contiguous lobes of a leaf.
Thesaurus Entries
accessory, accidental, accordant, ado, afloat, afoot, agreeing, associate, associated, at one with, attendant, attending, circumstantial, coacting, coactive, coadunate, coetaneous, coeternal, coeval, coexistent, coexisting, coincident, coinstantaneous, collaborative, collateral, collective, collusive, combined, combining, concerted, concomitant, concordant, concurrent, concurring, conjoint, consilient, conspiratorial, contemporaneous, contemporary, conterminous, cooperant, cooperative, coordinate, correlative, coterminous, coupled, coworking, current, doing, eventuating, fellow, going on, happening, harmonious, in hand, in the wind, incidental, isochronal, isochronous, joined, joint, meeting, mutual, occasional, occurring, on, on foot, ongoing, paired, parallel, parasitic, passing, prevailing, prevalent, resultant, saprophytic, simultaneous, symbiotic, synchronous, synergetic, synergic, synergistic, taking place, twin, under way, unison, unisonous, united, uniting