Pedicularis verticillata

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.

Phenology: Flowering Jun–Sep.
Habitat: Arctic meadows and thickets, muskegs, arctic and alpine tundras.
Elevation: 0–1800 m.

B.C., N.W.T., Yukon, Alaska, Europe, Asia.

Discussion

In the flora area, Pedicularis verticillata and P. chamissonis are the only species of Pedicularis with whorled leaves.

Selected References

None.

Lower Taxa