Sourwood

Oxydendrum arboreum (I,.) DC. Prodr. 7: 601. 1839
Andromeda arborea L. Sp. PI. 394. 1753.
Lyonia arborea D. Don, Edinb. New Phil. Jour. 17: 159. 1834.
A tree sometimes 25 m. tall, with glabrous or sparingly puberulent twigs; leaf -blades oblong, elliptic, or oval, or sometimes oblong-lanceolate, 8-20 cm. long, acuminate, sometimes short-acuminate, finely serrate, shining above, paler and sometimes glaucescent beneath, and also puberulent and sparingly pubescent on the veins, especially when young, acute or abruptly narrowed at the base, rather slender-petioled ; panicles mostly -1-2 dm. long, the branches distichous, puberulent; pedicels drooping in anthesis, erect in fruit; calyx-lobes ovate to lanceolate, 3-4 mm. long, acuminate; corolla wax-like, 6-7 mm. long, constricted at the throat, the lobes obtuse to mucronulate; stamens 5-6 mm. long; capsules ovoid, sometimes narrowly so, 4-5 mm. long, usually slightly constricted below the apex, canescent.
Type locality: Virginia. ^
Distribution: In or near the mountains, Pennsylvania and Ohio to Florida and Mississippi.