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.
Lilium canadense. Commonly known as the Canada lily, Meadow lily or Wild yellow lily, this species is probably the commonest and most widely distributed lily in N. America, ranging from Quebec, New Brunswick and Nova Scotia, southward to West Virginia.