Pedicularis howellii |
Pedicularis palustris |
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Howell lousewort, Howell's lousewort, Howell's pedicularis |
European purple lousewort, European purple or marsh lousewort, marsh redrattle, pédiculaire des marais |
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Habit | Plants 15–40 cm. | |
Leaves | 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. |
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Racemes | 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. |
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Pedicels | 2.5–3 mm. |
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Flowers | 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. |
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Pedicularis howellii |
Pedicularis palustris |
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Phenology | Flowering Jun–Aug. | |
Habitat | Alpine forest clearings and edges. | |
Elevation | 1100–2000. | |
Distribution |
CA; OR
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NF; NS; QC; Eurasia |
Discussion | 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.) |
Subspecies 4 (1 in the flora). Four subspecies of Pedicularis palustris have been designated in Europe; North American material appears to be subsp. palustris. The overall form and habit of Pedicularis palustris are very similar to those of P. pennellii. Inflorescences of both species consist of paniculate racemes, and galea margins have two sets of paired teeth, one set medial and the other distal. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 523. | FNA vol. 17, p. 527. |
Parent taxa | Orobanchaceae > Pedicularis | Orobanchaceae > Pedicularis |
Sibling taxa | ||
Subordinate taxa | ||
Name authority | A. Gray: Proc. Amer. Acad. Arts 20: 307. (1885) | Linnaeus: Sp. Pl. 2: 607. (1753) |
Web links |