Pedicularis langsdorffii |
Pedicularis angustifolia |
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Langsdorf's lousewort, Langsdorff's lousewort |
Mogollon Mountain lousewort |
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Habit | Plants 4–30 cm. | Plants 35–55 cm. | ||||
Leaves | basal 0–10, blade elliptic, 10–30 x 3–15 mm, 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous; cauline 1–4, blade elliptic, 10–40 x 2–10 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, sometimes crenate, surfaces glabrous, sometimes sparsely tomentose. |
basal 0; cauline 10–20, blade linear to narrowly lanceolate, 15–70 x 1–6 mm, undivided, margins serrate, surfaces glabrous. |
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Racemes | simple, 1–6, exceeding basal leaves, each 10–50-flowered; bracts subulate or linear, 5–25 x 1–10 mm, undivided or 1-pinnatifid, proximal margins entire, distal serrate, surfaces glabrous or sparsely tomentose to tomentose. |
paniculate or simple or buds present in cauline leaf axils, 3–15, each 2–12-flowered; bracts linear to narrowly lanceolate, 2–70 x 1–6 mm, undivided, proximal margins entire, distal serrate, surfaces glabrous. |
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Pedicels | 2.5–5 mm. |
1.5–4.5 mm. |
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Flowers | calyx 6–11 mm, glabrous or +/- tomentose, lobes 5, triangular, 2–5 mm, apex entire or serrate to dentate, glabrous; corolla 17–25 mm, tube pink or lavender, 11–13 mm; galea pink or lavender, 6–12 mm, beakless, margins entire medially, 1-toothed distally, apex strongly arching over abaxial lip; abaxial lip pink or lavender, 5–8 mm. |
calyx 5.5–8.5 mm, glabrous, lobes 2, triangular, 0.5–1 mm, apex entire, glabrous; corolla 12–20 mm, tube yellow, 4–10 mm; galea yellow, 8–11 mm, beakless, margins entire medially, 1-toothed distally, apex arching over abaxial lip; abaxial lip yellow, 6–8 mm. |
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Pedicularis langsdorffii |
Pedicularis angustifolia |
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Phenology | Flowering Jul–Aug. | |||||
Habitat | Moist forested ridges and slopes. | |||||
Elevation | 2000–3000 m. (6600–9800 ft.) | |||||
Distribution |
AK; AB; BC; NT; NU; YT; Asia
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NM; Mexico (Chihuahua, Durango, Michoacán) |
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Discussion | Subspecies 2 (2 in the flora). Pedicularis langsdorffii may be mistaken for P. hirsuta, P. lanata, and P. sudetica, which have similar growth forms and habitat requirements. Pedicularis langsdorffii generally has larger, pink to lavender corollas with toothed galeas that strongly arch over the abaxial lips in contrast to the smaller, toothless, pink corollas and slightly arching galeas of P. lanata. Pedicularis sudetica has up to five cauline leaves or lacks them. The straight, smaller galeas and pale pink or white corollas of P. hirsuta differentiate it from P. langsdorffii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Plants of Pedicularis angustifolia have two-lobed calyces, undivided linear leaves, and branched or unbranched inflorescences. The beakless galea has a single tooth on each abaxial margin at the distal tip of the galea apex. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 17, p. 525. | FNA vol. 17, p. 513. | ||||
Parent taxa | Orobanchaceae > Pedicularis | Orobanchaceae > Pedicularis | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | P. angustissima | |||||
Name authority | Fischer ex Steven: Mém. Soc. Imp. Naturalistes Moscou 6: 49, plate 9, fig. 2. (1822) — (as langsdorfii) | Bentham: Pl. Hartw., 22. (1839) | ||||
Web links |