Pedicularis rainierensis |
Pedicularis hirsuta |
|
|---|---|---|
|
Mt. Rainier lousewort |
hairy lousewort, pédiculaire hirsute |
|
| Habit | Plants 10–40 cm. | Plants 3–15 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 3–10, blade elliptic to lanceolate, 5–20 x 2–5 mm, 1(or 2)-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous; cauline 3–10, blade lanceolate to oblanceolate, 5–30 x 1–7 mm, 1-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous. |
| 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, 1–10, exceeding basal leaves, each 5–25-flowered; bracts lanceolate, 5–15 x 1–5 mm, 1-pinnatifid 1/2–3/4 to midrib, proximal margins entire, distal serrate, surfaces densely wooly. |
| Pedicels | 1–3.5 mm. |
2–5 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 7–10 mm, densely woolly, lobes 5, triangular, 1–4 mm, apex entire or serrate, glabrous or ciliate; corolla 11–19 mm, tube pale pink, sometimes white, 6–14 mm; galea pale pink, sometimes white, 4–7 mm, beakless, margins entire medially, 1-toothed distally, apex nearly straight to arching slightly over abaxial lip; abaxial lip pale pink, sometimes white, 4–5 mm. |
| 2n | = 16. |
|
Pedicularis rainierensis |
Pedicularis hirsuta |
|
| Phenology | Flowering Jun–Aug. | Flowering Jul–Aug. |
| Habitat | Moist alpine grassy meadows, gravelly slopes. | Tundra bogs, stream and lake banks. |
| Elevation | 1200–2000 m. [3900–6600 ft.] | 0–500 m. [0–1600 ft.] |
| Distribution |
WA
|
AK; LB; NT; NU; QC; Greenland; Eurasia |
| 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 hirsuta can be difficult to distinguish from P. lanata. Unlike P. lanata, the galea subapex of P. hirsuta is toothed. Floral surfaces of P. lanata are sparsely to densely hirsute; those of P. hirsuta are glabrous. On fresh specimens, the roots of P. hirsuta are pale yellow; those of P. lanata are bright yellow. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| Parent taxa | ||
| Sibling taxa | ||
| Name authority | Pennell & F. A. Warren: Bull. Torrey Bot. Club 55: 317. (1928) | Linnaeus: Sp. Pl. 2: 609. (1753) |
| Source | FNA vol. 17, p. 531. | FNA vol. 17, p. 523. |
| Web links | ||