Pedicularis bracteosa


in W. J. Hooker, Fl. Bor.-Amer. 2: 110. 1838.

Common names: Bracted or towering lousewort
Treatment appears in FNA Volume 17. Treatment on page 515. Mentioned on page 510, 511, 512, 513, 530.

Plants 20–80 cm. Leaves: basal 0–10, blade lanceolate, 20–120 x 10–60 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, 1- or 2-serrate, surfaces glabrous; cauline 4–10, blade lanceolate, 10–270 x 8–150 mm, undivided or 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping, serrate to 2-serrate, surfaces glabrous or scattered glandular. Racemes simple, 1–4, exceeding basal leaves, each 15–75-flowered; bracts lanceolate or subulate to trullate, 10–20 x 2–10 mm, undivided, proximal margins entire, distal entire or serrate, surfaces glabrous, hispid, or tomentose. Pedicels 0.5–1 mm. Flowers: calyx 7–15 mm, glabrous or tomentose, lobes 5, triangular or filiform, 1–10 mm, apex entire, glabrous or ciliate; corolla 14–27 mm, tube yellow or dark blood red, 6–12 mm; galea yellow to yellow tinged with red, purple tinged with yellow, or dark blood red, 6–15 mm, beakless or beaked, beak straight, 0.8–2.5 mm, margins entire medially and distally, apex arching over abaxial lip; abaxial lip expanded, yellow, yellow tinged with purple, or dark blood red, 4.5–6.5 mm.


Alta., B.C., Calif., Colo., Idaho, Mont., N.Mex., Oreg., Utah, Wash., Wyo.


Varieties 8 (8 in the flora).

Pedicularis bracteosa is found in subalpine habitats across much of western North America, occurring throughout the Rocky Mountains from central British Columbia and Alberta to northern New Mexico, as well as the Coast Range south to northern California.

Selected References



1 Galeas beaked. > 2
2 Calyces tomentose. Pedicularis bracteosa var. canbyi
2 Calyces glabrous. Pedicularis bracteosa var. siifolia
1 Galeas beakless. > 3
3 Calyx lobes filiform. > 4
4 Corollas: tubes yellow, galeas yellow to yellow tinged with red, or purple tinged with yellow, abaxial lips yellow to yellow tinged with purple. Pedicularis bracteosa var. bracteosa
4 Corollas: tubes, galeas, and abaxial lips dark blood red. Pedicularis bracteosa var. atrosanguinea
3 Calyx lobes triangular. > 5
5 Galeas 10–15 mm. Pedicularis bracteosa var. paysoniana
5 Galeas 7–11 mm. > 6
6 Galea apices acute; British Colombia, Idaho, Washington. Pedicularis bracteosa var. latifolia
6 Galea apices obtuse; Blue and Wallowa mountains, Cascade Range, Oregon and Washington. > 7
7 Calyces slightly hispid; Cascade Range, Oregon and Washington. Pedicularis bracteosa var. flavida
7 Calyces tomentose; Blue and Wallowa mountains, Oregon, and Washington. Pedicularis bracteosa var. pachyrhiza
... more about "Pedicularis bracteosa"
Bruce W. Robart +
Bentham +
Bracted or towering lousewort +
Alta. +, B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
in W. J. Hooker, Fl. Bor.-Amer. +
Illustrated +  and Endemic +
Elephantella +  and Pediculariopsis +
Pedicularis bracteosa +
Pedicularis +
species +