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Recent biochemical, genomic, and structural studies show that LHP1 acts as a modular chromatin scaffold whose regulatory output depends on local histone modifications, RNA interactions, transcriptional factors, and PRC1\/PRC2\u2010associated partners. In this review, we outline emerging roles of LHP1 in Polycomb\u2010mediated repression, chromatin\u2010state maintenance, transcriptional responsiveness, hormone signaling, stress responses, and TE\u2010proximal gene regulation. We also examine the structural features and evolutionary diversification of LHP1 homologs across land plants and assess how duplicated LHP1 copies may contribute to species\u2010specific developmental and stress\u2010adaptive traits. Rather than presenting LHP1 as a universal master regulator, we emphasize its context\u2010dependent functions and distinguish experimentally supported mechanisms from correlative or still unresolved models. 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