royal cowslip

plural royal cowslips

1. An unidentified flowering plant of Javan mountains formerly classified as Primula imperialis, now considered a nomen dubium.

   1 more example

   At about 5,000 feet European forms of plants become abundant. Several species of Honeysuckle, St. John's-wort, and Guelder-rose abound, and at about 9,000 feet we first meet with the rare and beautiful Royal Cowslip (Primula imperialis), which is said to be found nowhere else in the world but on this solitary mountain summit.

   1869, Alfred Russel Wallace, The Malay Archipelago, volume I, London: Macmillan and Co., page 183