Pedicularis verticillata |
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whorled lousewort |
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Habit | Plants 5–25 cm. |
Leaves | basal 5–25, blade elliptic, 10–20 x 3–8 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous or tomentose; cauline whorled, whorls 1 or 2, leaves per whorl 3–5, blade lanceolate, 5–30 x 3–10 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping, serrate, surfaces glabrous. |
Racemes | verticillate, 1–10, exceeding basal leaves, each 10–40-flowered; bracts lanceolate to trullate, 4–20 x 2–5 mm, undivided or 1- or 2-pinnatifid, margins serrate, surfaces glabrous or sparsely tomentose. |
Pedicels | 0.7–2.5 mm. |
Flowers | calyx 3.5–10 mm, glabrous or pilose, lobes 5, deltate, 0.3–1 mm, apex entire, glabrous or ciliate; corolla 10–18 mm, tube light or dark pink, 5–8 mm; galea light or dark pink or purple, 5–7 mm, beakless, margins entire medially and distally, apex arching slightly over abaxial lip; abaxial lip light pink with purple veins and/or purple spots or purple with dark veins, 5–7 mm. |
2n | = 12. |
Pedicularis verticillata |
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Phenology | Flowering Jun–Sep. |
Habitat | Arctic meadows and thickets, muskegs, arctic and alpine tundras. |
Elevation | 0–1800 m. (0–5900 ft.) |
Distribution |
AK; BC; NT; YT; Europe; Asia |
Discussion | In the flora area, Pedicularis verticillata and P. chamissonis are the only species of Pedicularis with whorled leaves. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 534. |
Parent taxa | Orobanchaceae > Pedicularis |
Sibling taxa | |
Synonyms | Pediculariopsis verticillata |
Name authority | Linnaeus: Sp. Pl. 2: 608. (1753) |
Web links |