Erect perennial to 1 m; lvs opposite or ternate, short-petioled, lanceolate or lance-ovate, 4–10 cm, usually acute or acuminate, very sharply serrate; racemes 1 or few, erect, spike-like, the axis hairy but not glandular; cor blue, hairy in the throat, its lobes 4–5 mm; fr little- flattened, 3 mm, smooth or puberulent, half as long as the persistent style; 2n=34, 68. Native of Europe; intr. in fields, roadsides and waste places from Nf. to N.D., Md., and Ill. June–Aug. (V. maritima; V. spicata, misapplied to plants with obtuse lvs)
Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
A
Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
