Most plants of the collection are available by Fa C. Esveld
Conservation Assessment for Red Honeysuckle (Lonicera dioica L. var. glaucescens) (Rydb.) Butter
Conservation Assessment for Yellow Honeysuckle (Lonicera flava Sims)
California Honeysuckles
Element stewardship abstract for Lonicera japonica.
Mexican Honeysuckle (Lonicera pilosa)
