Trillium has fascinated the botanical world with its peculiar biology and high medicinal value. The genus appears in North America and Asia, and is widely used for traditional medicine on both continents. Medicinal value has been validated recently through the isolation and ex situ testing of constituent compounds. This study reviews biology, medicinal value, ecological threats and knowledge gaps, and offers suggestions for conservation and sustainable utilization. Findings indicate that the biology of the genus is well explored and the reproductive constraints are well recognized. Steroidal compounds and pharmaceutical potential of the genus are reported, but controlled clinical trials on humans are yet to be conducted. High medicinal value and the peculiar biology have made the genus susceptible to several threats.

中文翻译：

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延龄草 - 可持续利用具有传统医学价值的生物学上独特的属

延龄草以其独特的生物学特性和极高的药用价值吸引了植物界。该属出现在北美和亚洲，在两大洲被广泛用于传统医学。最近通过成分化合物的分离和异地测试证实了其药用价值。本研究回顾了生物学、药用价值、生态威胁和知识差距，并为保护和可持续利用提供建议。研究结果表明，该属的生物学得到了很好的探索，生殖限制也得到了很好的认识。该属的甾体化合物和药物潜力已有报道，但尚未对人体进行对照临床试验。高药用价值和奇特的生物学特性使该属容易受到多种威胁。