- Wikipedia. Online encyclopedia entry (if defined).
- Google images. Web search for photographs.
- GRIN. Taxonomical details, with common names, distribution, and synonyms.
- The Plant List. Taxonomical lookup
Links for Linum medium
Common name(s): Stiff Yellow Flax
- Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations.
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (5 photos)