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A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter-lived annuals and biennials.
For culinary and other herbs, see Herb. Trientalis latifolia (Broadleaf Starflower) is a perennial herbaceous plant of the ground layer of forests in western North America. Herbaceous plants (in botanical use frequently simply herbs) are plants that have no persistent woody stem above ground. Herbaceous plants may be annuals, biennials or perennials. Annual herbaceous plants die completely at the end of the growing season or when they have flowered and fruited, and they then grow again from seed.