The rhododendron and "American plants". A treatise on the culture, propagation, and species of the rhododendron; with cultural notes upon other plants which thrive under like treatment, and descriptions of species and varieties; with a chapter upon herbaceous plants requiring similar culture - Rand, Edward Sprague, Jr.,; Andrews, James,; Brooks, Vincent,; Fitch, W. H. (Walter Hood), (Boston, Little, Brown, and company, 1871)
https://www.biodiversitylibrary.org/bibliography/34098
Keywords: Plants; Cultivated|Rhododendron|Rhododendrons|United States|