China Rose 'Green Rose' (Viridiflora)

'Green Rose' (Rosa chinensis 'Viridiflora') is a botanical curiosity—a rose where petals are replaced by leaf-like, green sepals, creating a "flower" that's entirely green. Known since 1827 (Smith), it's a conversation piece rather than a traditional ornamental.

• Family: Rosaceae
• Genus: Rosa
• Cultivar: 'Green Rose'
• Also known as: Green Calyx, La Rose Verte, Viridiflora
• Synonyms: R. chinensis var. viridiflora, R. viridiflora
• Hybridized by: Smith
• Introduced: 1827

Key Features: Unique "blooms" composed of narrow, leaf-like green bracts instead of petals—no true flowers. Upright, twiggy habit to 3–4 feet. Blooms continuously in mild climates. Hardy in USDA zones 7–9 (often grown as annual or container plant elsewhere). A genetic sport of 'Old Blush'.

Landscape Uses: Novelty plant, conversation piece, cut flower arrangements (long-lasting green "blooms"), botanical collections. Not for traditional rose display.