Bulbs, Corms, Tubers and Rhizomes - Seeds and Plants
The Complete Book of Bulbs, Corms, Tubers, and Rhizomes: A Setp-by-Step Guide to Nature's Easiest and Most Rewarding Plants | Brian Mathew, Philip Swindells
Bulbs, corms, rhizomes and tubers | Outdoors | postregister.com
Understanding Bulbs - The Real Dirt Blog - ANR Blogs