1. Plural of columnea; a genus of tropical plants in the African violet family, known for their showy tubular flowers and trailing or climbing growth habit.
Usage: botanical term; commonly used in horticulture and gardening contexts

Examples

• The greenhouse displayed several varieties of columneas with vibrant red and yellow flowers.
• Columneas are popular houseplants for hanging baskets because of their cascading stems.
• She propagated her columneas from cuttings taken in spring.
• Many columneas thrive in humid, indirect light conditions.
• The columneas in the botanical garden attracted visitors with their exotic blooms.