Pedicularis rainierensis |
Pedicularis howellii |
|
---|---|---|
Mt. Rainier lousewort |
Howell lousewort, Howell's lousewort, Howell's pedicularis |
|
Habit | Plants 10–40 cm. | Plants 15–40 cm. |
Leaves | basal 2–5, blade lanceolate, 40–80 x 3–20 mm, 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate to 2-serrate, surfaces glabrous; cauline 2–6, blade lanceolate, 15–70 x 5–20 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous. |
basal 1–4, blade elliptic to lanceolate, 20–60 x 15–40 mm, undivided or 1-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous; cauline 10–12, blade ovate to lanceolate, 25–60 x 15–40 mm, undivided or 1-pinnatifid, sometimes auricled, margins of adjacent lobes nonoverlapping or slightly overlapping distally, entire or serrate to crenate, surfaces glabrous or scattered woolly along main vein. |
Racemes | simple, 1–4, exceeding basal leaves, each 10–50-flowered; bracts lanceolate or subulate to trullate, 10–15 x 1–2 mm, undivided or pinnatifid, proximal margins entire, distal serrate, surfaces glabrous or tomentose. |
simple, 1–8, exceeding basal leaves, each 15–40-flowered; bracts trullate to cordate, 6–8 x 4–8 mm, undivided, proximal margins entire, distal entire, surfaces glabrous or tomentose. |
Pedicels | 1–3.5 mm. |
2.5–3 mm. |
Flowers | calyx 7.5–11 mm, hispid to tomentose, lobes 5, linear to narrowly triangular, 4–5 mm, apex entire, glabrous or ciliate; corolla 16–19 mm, tube light or dark yellow, 8–10 mm; galea light or dark yellow, 8–9 mm, beakless, margins entire medially and distally, apex arching beyond abaxial lip; abaxial lip light or dark yellow, 4–5 mm. |
calyx 6–6.5 mm, tomentose, lobes 5, triangular, 1.5–2 mm, apex entire, ciliate; corolla 10–13 mm, tube white, 6–8 mm; galea white, apically sometimes tinged with red to violet, 3.5–5 mm, beaked, beak straight, 1–2 mm, margins entire medially and distally, apex extending beyond abaxial lip; abaxial lip white, 1.5–2 mm. |
Pedicularis rainierensis |
Pedicularis howellii |
|
Phenology | Flowering Jun–Aug. | Flowering Jun–Aug. |
Habitat | Moist alpine grassy meadows, gravelly slopes. | Alpine forest clearings and edges. |
Elevation | 1200–2000 m. (3900–6600 ft.) | 1100–2000. |
Distribution |
WA
|
CA; OR
|
Discussion | Pedicularis rainierensis is known from Mt. Rainier and the Crystal Mountain area. The species is easily confused with P. bracteosa var. latifolia, which often occurs in the same meadows. While the sizes and shapes of their flowers are nearly indistinguishable, P. rainierensis is a much smaller plant with leaves only about three fourths the size, proximal leaf lobes less than one fifth the size, inflorescences about one half the length, and the number of flowers greatly reduced in comparison to those of P. bracteosa var. latifolia. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Pedicularis howellii is found in the Siskiyou Mountains along the California/Oregon border; it has undivided distal leaves. The division of the proximal leaves into irregular and asymmetric lobes, sometimes appearing auricled, is a unique feature of this species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 531. | FNA vol. 17, p. 523. |
Parent taxa | ||
Sibling taxa | ||
Name authority | Pennell & F. A. Warren: Bull. Torrey Bot. Club 55: 317. (1928) | A. Gray: Proc. Amer. Acad. Arts 20: 307. (1885) |
Web links |