Pedicularis racemosa
Pedicularis chamissonis
leafy lousewort, parrot's-beak, sickletop lousewort, white sickletop lousewort
Chamisso'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 5–15, blade lanceolate, 15–40 x 10–20 mm, 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous;
cauline whorled, whorls 1–4, leaves per whorl 3–5, blade lanceolate, 10–60 x 10–30 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, entire or serrate, surfaces glabrous.
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.
verticillate, 1–3, exceeding basal leaves, each 8–20-flowered;
bracts lanceolate to subulate, 10–30 x 5–10 mm, 1-pinnatifid or undivided, margins serrate to 2-serrate, surfaces glabrous.
1–3.5 mm.
1.5–2.5 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 6–8 mm, glabrous, lobes 5, triangular, 0.5–1.4 mm, apex entire, ciliate;
corolla 18–20 mm, tube white to pink, 12–15 mm;
galea purple, 6–8 mm, beaked, beak straight, 1–3 mm, margins entire medially and distally, apex extending beyond abaxial lip;
abaxial lip pink or purple, 4–5 mm.
= 16.
Pedicularis racemosa
Pedicularis chamissonis
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.)
Pedicularis chamissonis differs from P. verticillata by having leaves and flowers about 1.5 times larger with a galea that is extended into a conical beak, leaves lanceolate versus elliptic, and lateral lobes of the abaxial lip more than twice the size and more pendulous.
Pedicularis chamissonis is chiefly an Asian species, found on the Kamchatka Peninsula, Kuril Islands, Sakhalin Island, and Japan; the only North American populations occur in the Aleutian Islands of Alaska.
(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 |
BC
CA
OR
WA
Flora NW
PNW Herbaria
SW CO Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
