Native to the Southwestern United States and northern Mexico. Phacelia tanacetifolia is an annual that grows erect to a maximum height near 1 m with none to a few branches. The wild form is glandular and coated in short stiff hairs. The leaves, 20–200 mm, are mostly divided into smaller leaflets which are deeply and intricately cut into toothed lobes, giving them a lacy appearance. The dense and hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers in shades of blue and lavender. Each flower is just under a 1 cm long and has protruding whiskery stamens. The seeds are "negatively photoblastic", or photodormant, and will only germinate in darkness.
Augalas 30-70 cm aukščio. Stiebas stačias, šakotas. Lapai plunksniškai suskaldyti, prie stiebo priaugę pražangiai. Žiedai susitelkę į tankius riestukus, kurie gerokai pailgėja žiedui peržydėjus. Vainikėlis mėlynas, kartais baltas. Vaisius – dėžutė. Žydi liepos – rugpjūčio mėn. Bitinė facelija – labai vertingas medingas augalas. Iš jo bitės renka nektarą. Medus baltas arba šviesiai žalsvas, malonaus kvapo ir skonio. Lietuvoje retokai auginama, bet randama ir sulaukėjusi.
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