Pedicularis racemosa
Pedicularis langsdorffii
leafy lousewort, parrot's-beak, sickletop lousewort, white sickletop lousewort
Langsdorf's lousewort, Langsdorff's lousewort
basal 0;
cauline 8–25, blade linear or narrowly lanceolate, 10–80 x 3–15 mm, undivided, adjacent margins nonoverlapping, 1- or 2-serrate, surfaces glabrous.
basal 0–10, blade elliptic, 10–30 x 3–15 mm, 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous;
cauline 1–4, blade elliptic, 10–40 x 2–10 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, sometimes crenate, surfaces glabrous, sometimes sparsely tomentose.
simple, 1–4, each 3–25-flowered;
bracts lanceolate, 5–40 x 3–10 mm, undivided, proximal margins entire, distal 1- or 2-serrate, surfaces glabrous.
simple, 1–6, exceeding basal leaves, each 10–50-flowered;
bracts subulate or linear, 5–25 x 1–10 mm, undivided or 1-pinnatifid, proximal margins entire, distal serrate, surfaces glabrous or sparsely tomentose to tomentose.
1–3.5 mm.
2.5–5 mm.
calyx 4.5–7 mm, glabrous, lobes 2, triangular to deltate, 0.5–1 mm, apex entire, glabrous;
corolla 10–15 mm, tube white or light pink, 6–9 mm;
galea white or light pink, 4–6 mm, beaked, beak sickle-shaped, 5–8 mm, margins entire medially and distally, apex not extending beyond abaxial lip;
abaxial lip white or light pink, 4–5 mm.
calyx 6–11 mm, glabrous or +/- tomentose, lobes 5, triangular, 2–5 mm, apex entire or serrate to dentate, glabrous;
corolla 17–25 mm, tube pink or lavender, 11–13 mm;
galea pink or lavender, 6–12 mm, beakless, margins entire medially, 1-toothed distally, apex strongly arching over abaxial lip;
abaxial lip pink or lavender, 5–8 mm.
= 16.
Pedicularis racemosa
Pedicularis langsdorffii
Subspecies 2 (2 in the flora).
Pedicularis racemosa occurs in the Rocky Mountains from southern Canada to New Mexico, in the Cascade Range from British Columbia to California, and in mountainous areas of Arizona.
Herbarium sheets of Pedicularis racemosa are sometimes misidentified as P. contorta or P. groenlandica, but the calyx has two lobes, not five as in the latter species. The uncoiled beak also bends downward from an undomed galea, which the large lateral lobes of the abaxial lip often conceal, whereas the coiled beaks of P. contorta and P. groenlandica are very noticeable.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies 2 (2 in the flora).
Pedicularis langsdorffii may be mistaken for P. hirsuta, P. lanata, and P. sudetica, which have similar growth forms and habitat requirements. Pedicularis langsdorffii generally has larger, pink to lavender corollas with toothed galeas that strongly arch over the abaxial lips in contrast to the smaller, toothless, pink corollas and slightly arching galeas of P. lanata. Pedicularis sudetica has up to five cauline leaves or lacks them. The straight, smaller galeas and pale pink or white corollas of P. hirsuta differentiate it from P. langsdorffii.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Corolla tubes light pink; cauline leaf blades narrowly elliptic-lanceolate, widest at middles. | subsp. racemosa |
1. Corolla tubes white; cauline leaf blades linear to linear-lanceolate, widest near bases or at middles. | subsp. alba |
1. Bracts and calyces glabrous. | subsp. langsdorffii |
1. Bracts and calyces +/- tomentose. | subsp. arctica |
BC
CA
OR
WA
Flora NW
PNW Herbaria
SW CO Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
