Pedicularis procera
Pedicularis lapponica
giant lousewort, Gray's lousewort
Lapland lousewort, pédiculaire de laponie
basal 2–4, blade lanceolate, 150–250 x 80–120 mm, 2-pinnatifid, margins of adjacent lobes nonoverlapping, entire or serrate, surfaces glabrous or hirsute;
cauline 4–10, blade triangular to lanceolate, 60–300 x 5–90 mm, undivided or 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping, 2-serrate, surfaces glabrous.
basal 0–4, blade lanceolate, 6–25 x 3–13 mm, 1-pinnatifid, margins of adjacent lobes nonoverlapping, serrate, surfaces glabrous;
cauline 3–7, blade lanceolate, 10–35 x 2–6 mm, 1(or 2)-pinnatifid, margins of adjacent lobes nonoverlapping, serrate, surfaces glabrous.
simple, sometimes paniculate, 1–3, exceeding basal leaves, each 10–50-flowered;
bracts linear or narrowly lanceolate to subulate, 15–80 x 3–8 mm, undivided, proximal margins entire, distal entire or serrate, surfaces hispid to tomentose.
simple, capitate, 1–3, exceeding basal leaves, each 6–12-flowered;
bracts linear to triangular, 6–9 x 1–3 mm, undivided or 1-pinnatifid, proximal margins entire, distal serrate, surfaces glabrous.
0–1 mm.
1–2 mm.
calyx 10–15 mm, hispid to hirsute, lobes 5, triangular, 4–7 mm, apex entire, ciliate;
corolla 22–30 mm, tube light yellow, greenish yellow, or light pink, 10–15 mm;
galea light yellow, greenish yellow, or light pink, with purple to red veins, 9–15 mm, beakless, margins entire medially, 1-toothed distally, apex arching over abaxial lip;
abaxial lip light yellow or light pink, with purple veins, 9–15 mm.
calyx 4–5.5 mm, glabrous, lobes 2, deltate, 0.2–1 mm, apex entire, glabrous;
corolla 11–17 mm, tube yellow, 6–8 mm;
galea yellow, 5–9 mm, beaked, beak straight, 0.5–2 mm, margins entire medially and distally, apex extending over abaxial lip;
abaxial lip yellow, 4–7 mm.
= 32.
= 16.
Pedicularis procera
Pedicularis lapponica
Although Pedicularis grayi A. Nelson appears in older floras, the name is superfluous and illegitimate. Pedicularis procera Adams ex Steven 1822 is invalid.
Pedicularis procera is the tallest species of Pedicularis in North America. Because the leaves closely resemble those of P. bracteosa, smaller plants can be easily mistaken for this species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
W. J. Cody (2000) described the beak of Pedicularis lapponica as toothed, but this is a misinterpretation of its irregular fimbriate apex that sometimes appears to be toothed. Basal leaves are usually not present on herbarium material, but if present, they are often larger than the cauline leaves but otherwise similar in form.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
SW CO Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
