According to a March 2023 extract of the Florida Plant Rescue Database, Fairchild Tropical Botanic Garden holds 14 accessions of Linum arenicola totalling approximately 1561 seeds representing 229 maternal lines.
This species is known from about nine sites in southern Florida. Altered fire and disturbance regimes and destruction of habitat by urban development are continuing and ongoing threats to many locations where these plants occur. Although each population is small, few are protected. The species appears to have two disjunct population centers, with the northern center having a smaller population number. This species' preferred habitat (pine rocklands) has been nearly destroyed as a result of development, with associated disruption of community processes such as fire regime and vulnerability to invasion by non-native species.
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