Pedicularis verticillata L.
NOT protected species in Bulgaria.
Pedicularis verticillata is a perennial, hemiparasitic herbs. Stem 5–20(–30) cm tall, erect, glabrous or hairy. Basal leaves petiolate, lanceolate in outline, pinnatifid, with ovate, crenate segments, cauline leaves in whorls of (2–)3–4, similar to the basal, with shorter petioles. Flowers in whorls in a dense spike; bracts lanceolate, often purplish, hirsute; calyx often purplish, hairy only on the veins, teeth entire; corolla 12–18(–20) mm, purplish-red, rarely pink or white, glabrous, tube twice as long as calyx, limb 2-lipped, upper lip galeate, almost straight, lower lip 3-lobed, lobes of lower lip rounded. The fruit is a capsule. Blooms June-August.
In the mountains Central and Western Stara Planina, Vitosha, Rila and Pirin; between 2000-2900 meters above sea level.
 PEDICULARIS VERTICILLATA L. – Whorled Lousewort - Botany.cz.
 Стоянов, Н. & Б. Китанов. 1966. Високопланинските растения в България. Изд. "Наука и изкуство", София.
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