Tulipa banuensis... plants.jstor.org

Tulipa banuensis ·... www.inaturalist.org

Duc van Thol-Tulip (Tulipa... www.inaturalist.org

Taxonomy of Tulipa -... en.wikipedia.org

Subgenus Tulipa ·... guatemala.inaturalist.org

Tulipa L. | Plants of the... powo.science.kew.org

Tulipa L. | Plants of the... powo.science.kew.org

Tulip | Horticulture and... horticultureandsoilscience....

Tulipa L. | Plants of the... powo.science.kew.org

latest?cb=20150131203134 horticultureandsoilscience....

Tulipa - Wikipedia war.wikipedia.org

World Plants: Plant List www.worldplants.de

Tulipa L. | Plants of the... powo.science.kew.org

Tulipa L. | Plants of the... powo.science.kew.org

World Plants: Plant List www.worldplants.de

Open Herbarium - Tulipa openherbarium.org

Tulipa ukrbin.com

Tulipa ukrbin.com

World Plants: Plant List www.worldplants.de

Tulipa L. | Plants of the... powo.science.kew.org