Quercus acerifolia Stoynoff & Hess

area stricktly limited to 4 sites in Arkansas (Magazine Mount, Logan Co.); 500-800 m;

2-6 (-15) m; multiple stems;

7-14 long x 10-15 cm wide; apex pointed, base truncate often asymmetrical; margin with 5 (-7) bristled lobes, the large lobes of the middle perpendicular to the midrib; often hairless on both faces, sometimes with scattered hairs and prominent tufts axils beneath; petiole hairless, 2-3 cm long;

acorn oblong 1-1.7 cm long, sessile, singly or paired; enclosed 1/4 or 1/3 by scaly, sometimes pubescent cup; maturing second year;

hardy; prefers dry, limestone soils;

– Sub-genus Quercus, section Lobatae, subsection Coccineae – Threatened, protected species (IUCN Red List Category : EN);