polyanthus

From Renaissance Latin polyanthus, corresponding to poly- +‎ Ancient Greek ἄνθος (ánthos, “flower”).

polyanthus (plural polyanthuses or polyanthi)

1. A type of primula, apparently originally from a hybrid between the cowslip and the primrose, having many different-coloured flowers. [from 17th c.]
   • 1793 February 27, Hester Piozzi, Thraliana:

     [T]he Hens all want to sit, the Primroses Polyanthuses &c crowd the Hedges; & a Rose Tree or two are quite full of Leaves.

   • 1842, [Katherine] Thomson, chapter X, in Widows and Widowers. A Romance of Real Life., volume II, London: Richard Bentley, […], →OCLC, pages 227–228:

     No cottage in Coughton boasted taller hollyhocks, nor finer Michaelmas daisies in the autumn than Dame Magdalen’s almshouses; and even now, at this early season, well cared-for stocks, and rich polyanthuses might excite the envy of more scientific but less successful gardeners.

From Ancient Greek πολυ- (polu-) + ἄνθος (ánthos).

• (Classical Latin) IPA^(key): [pɔ.lyˈan.tʰʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [po.liˈan̪.t̪us]

polyanthus (feminine polyantha, neuter polyanthum); first/second-declension adjective

1. (New Latin) Having many flowers

First/second-declension adjective.