What is "pinxter"

Pinkster \Pink"ster\, n. [D. pinkster, pinksteren, fr. Gr. ?. See Pentecost.] Whitsuntide. [Written also pingster and pinxter.]

Pinkster flower (Bot.), the rosy flower of the Azalea nudiflora; also, the shrub itself; -- called also Pinxter blomachee by the New York descendants of the Dutch settlers.