Pedicularis labradorica |
Pedicularis verticillata |
|
---|---|---|
Labrador lousewort, pédiculaire du Labrador |
whorled lousewort |
|
Habit | Plants 2–25 cm. | Plants 5–25 cm. |
Leaves | basal 2 or 3, blade lanceolate, 10–20 x 2–3 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping, serrate, surfaces glabrous; cauline 1–4, blade linear to lanceolate, 10–50 x 2–10 mm, undivided or 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping, serrate to 2-serrate, surfaces glabrous or sparsely downy to hispid. |
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 | paniculate or buds present in cauline leaf axils, 1–8, exceeding basal leaves, each 5–20-flowered; bracts linear to narrowly lanceolate, 7–15 x 1–2 mm, undivided or 1-pinnatifid, proximal margins entire, distal 1- or 2-serrate, sometimes crenulate, surfaces glabrous or hispid. |
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 | 0.5–2 mm. |
0.7–2.5 mm. |
Flowers | calyx 5–8 mm, glabrous, lobes 2, triangular, 0.5–1.5 mm, apex entire, sometimes slightly bifurcate, glabrous; corolla 12–18 mm, tube deep yellow, 7–10 mm; galea dark yellow or yellow tinged with purple or spotted, 5–9 mm, beakless, margins entire medially, 1-toothed distally, apex arching over abaxial lip; abaxial lip dark yellow, 5–7 mm. |
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 | = 16. |
= 12. |
Pedicularis labradorica |
Pedicularis verticillata |
|
Phenology | Flowering Jun–Aug. | Flowering Jun–Sep. |
Habitat | Open forests, tundras, heathlands, rocky slopes, muskegs. | Arctic meadows and thickets, muskegs, arctic and alpine tundras. |
Elevation | 300–1100 m. (1000–3600 ft.) | 0–1800 m. (0–5900 ft.) |
Distribution |
AK; AB; BC; LB; MB; NT; NU; ON; QC; SK; YT; Greenland; Asia (China, Russia)
|
AK; BC; NT; YT; Europe; Asia |
Discussion | The flowers of Pedicularis labradorica are usually yellow or dark yellow, and the galea is tinged distally with red or purple; sometimes, the yellow color of the tube abruptly transitions into red or purple. Hultén based var. sulphurea on the solid yellow color variant from the Yukon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. 524. | FNA vol. 17, p. 534. |
Parent taxa | Orobanchaceae > Pedicularis | Orobanchaceae > Pedicularis |
Sibling taxa | ||
Synonyms | P. labradorica var. sulphurea | Pediculariopsis verticillata |
Name authority | Wirsing: Eclog. Bot. [2], plate 10. (1778) | Linnaeus: Sp. Pl. 2: 608. (1753) |
Web links |