Robinia hartwigii Koehne. Granite Dome Locust, Highlands Locust, Hartwig's Locust. Phen: Jun-Jul; Aug-Sep. Hab: Forests and outcrop edges on high elevation granitic domes, also clearings; disjunct in longleaf pine sandhills. Dist: Apparently endemic to a small area around Highlands, NC; and disjunct in the Sandhills of SC (Aiken County; Patrick McMillan, pers. comm., 2015); also in the Ouachita Mountains of AR, where seemingly native (in remote locations) (T. Witsell, pers.comm., 2023).
Origin/Endemic status: Endemic
Taxonomy Comments: While certainly related to and apparently hybridizing with R. viscosa, R. hartwigii seems worthy of recognition as a species; Wheeler (2023) supported species rank. The original spelling (Koehne 1913) is "hartwigii"; it is not clear why the orthographic variants (see synonymy) arose.
Synonymy: = RAB, S, Wheeler (2023); = Robinia viscosa Vent. var. hardwegii – Ashe (1922), orthographic variant; = Robinia viscosa Vent. var. hartwegii (Koehne) Ashe – K1, orthographic variant; = Robinia viscosa Vent. var. hartwigii – K3, K4, SE3, Isely & Peabody (1984), Peabody (1984); < Robinia viscosa Vent. – FNA11.2, W
Heliophily ?: 7
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.
© Brandon Wheeler | Original Image ⭷Feedback
See something wrong or missing on about Robinia hartwigii? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.
Cite as...