Veronica catenata is A glabrous perennial herb with ascending stems. The leaves are 3-4.5 x 1.5-2.5 cm, sessile, linear-lanceolate, with dentate margins, acute, rarely obtuse apex, and cordate-amplexicaul at the base. Flowers are small, with white, pink or blue-lavender, tubular with 4 rounded-diamond shaped petals; the upper lobe is streaked with darker purple at the base, and the lower lobe is smaller than the others; they are fused at the base forming a short tube, greenish on the inside of the throat. The flowers are grouped in racemes at the top of the plant and from leaf axils in the upper plant. The fruit is a rounded capsule.
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