Representative examples — Species: Polemonium cuspidatum
Descriptive catalogue of ornamental trees, shrubs, vines, evergreens, hardy plants and fruits (1901) (19939614704).jpg
Dreer's wholesale price list - bulbs for florists flower seeds for florists plants for florists vegetable seeds, fungicides, fertilizers, insecticides, implements, sundries, etc (1909) (14783949262).jpg
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