Senega boykinii (Nuttall) J.F.B. Pastore & J.R. Abbott var. 2 [=sparsifolia]. Common name: Boykin's Milkwort. Habitat: Pine rocklands, often growing out of oolitic limestone. Distribution: S. Florida (Monroe County Keys, Miami-Dade County).
Origin/Endemic status: Endemic
Taxonomy Comments: Further research is needed to confirm the northern limit on this variety. Small described Polygala praetervisa as restricted to the lower Florida Keys while Wheelock originally described the taxon from south FL (Cudjoe Key) growing in coral soil. Some specimens annotated as this taxon from Everglades National Park (O. Lakela 26756, USF) appear slightly more intermediate with Polygala boykinii var. boykinii. Small also described material resembling Polygala boykinii from Everglades as Polygala flagellaris, which aligns with this intermediate material. While material from the lower keys clearly shows significantly reduced leaf size, stems with overall fewer leaves, and whorled leaves mostly limited to the basal portion of stems (or absent), more work is needed to place this intermediate material in Miami-Dade county.
Synonymy ⓘ: = Polygala boykinii Nuttall var. sparsifolia Wheelock — K1, K4; = Polygala sparsifolia (Wheelock) Small — S13; < Polygala boykinii Nuttall — Fl3, FNA10, NS, WH3; > Polygala flagellaris Small — S; > Polygala praetervisa Chodat — S; < Senega boykinii (Nutt.) J.F.B.Pastore & J.R.Abbott — POWO, Pastore et al (2023). Basionym: Polygala boykinii Nuttall var. sparsifolia Wheelock 1891
Links to other floras: < Polygala boykinii - FNA10
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Heliophily ⓘ: 9
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Horticultural Information
No horticultural data found for this taxon.