English plurals. English nouns are inflected for grammatical number, meaning that if they are of the countable type, they generally have different forms for singular and plural.
Growing Daylilies. We'd describe the Daylily as the backbone of the perennial garden except that would do a disservice to this most durable plant -- backbones, as every gardener knows, are fragile things, whereas Daylilies are close to indestructible.
Oriental and Orienpets Lilies. Oriental Lilies are best known for their perfume and late-summer bloom. Crimson-and-white 'Star Gazer' is still popular as a cut flower after 25 years in the trade. Pure white 'Casa Blanca' has taller stems, to 4ft or more, and lights up a summer evening in the garden.