Pedicularis lanceolata |
Pedicularis ornithorhyncha |
|
---|---|---|
swamp lousewort |
bird's-beak lousewort, ducksbill lousewort |
|
Habit | Plants 20–100 cm. | Plants 10–25 cm. |
Leaves | basal 0; cauline 10–30, blade lanceolate, 20–100 x 10–30 mm, 1-pinnatifid, margins of adjacent lobes nonoverlapping, 2-serrate, surfaces hispid. |
basal 2–10, blade lanceolate to oblanceolate, 15–80 x 3–10 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, entire or serrate, surfaces glabrous; cauline 0–4, blade lanceolate, 5–40 x 3–15 mm, 1- or 2-pinnatifid, margins of adjacent lobes nonoverlapping or slightly overlapping distally, serrate, surfaces glabrous. |
Racemes | paniculate, 1, each 10–20-flowered; bracts lanceolate to trullate, 5–10 x 3–5 mm, undivided or 1-pinnatifid and 1- or 2-auricled, proximal margins entire, distal 1- or 2-serrate, surfaces glabrous or hispid. |
simple, 1–5, exceeding basal leaves, each 4–15-flowered; bracts trullate, sometimes lanceolate, 5–13 x 1–3 mm, +/- lobed, margins entire or serrate, surfaces glabrous or tomentose. |
Pedicels | 1–1.5 mm. |
3–6 mm. |
Flowers | calyx 7–12 mm, glabrous or hispid, lobes 2, trullate, ovate, elliptic, or triangular, 2.5–3.5 mm, apex serrate, glabrous, sometimes ciliate; corolla 16–22 mm, tube white, cream, or light yellow, 8–12 mm; galea white, cream, or light yellow, 8–12 mm, beaked, beak straight, 0.5–2.5 mm, margins entire medially and distally, apex extending over abaxial lip; abaxial lip white, cream, or light yellow, 7–10 mm. |
calyx 6.5–9 mm, tomentose, lobes 5, triangular, 2.5–4 mm, apex entire or serrulate, glabrous or ciliate; corolla 12–15 mm, tube lavender, 8–9 mm; galea lavender, 4–6.5 mm, beaked, beak straight, 2–6.5 mm, margins entire medially and distally, apex extending beyond abaxial lip; abaxial lip pink, 6–8 mm. |
2n | = 16. |
= 16. |
Pedicularis lanceolata |
Pedicularis ornithorhyncha |
|
Phenology | Flowering Aug–Oct. | Flowering Jul–Sep. |
Habitat | Wet meadows, fens, springs, moist prairies, swamps. | Moist alpine meadows, heathlands, tundras. |
Elevation | 10–1100 m. (0–3600 ft.) | 200–2400 m. (700–7900 ft.) |
Distribution |
AR; CT; DE; GA; IA; IL; IN; KY; MA; MD; MI; MN; MO; NC; ND; NE; NJ; NY; OH; PA; SD; TN; VA; WI; WV; MB; ON
|
AK; WA; BC
|
Discussion | The long corolla tubes of Pedicularis lanceolata are uncharacteristically nectarless, and only late season pollen-foraging worker bumblebees pollinate this species (L. W. Macior 1969). The uniquely hinged abaxial lip covering the opening of the galea is an adaptation to allow only worker bumblebees access to the anthers, as they must learn to push it aside during foraging. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Pedicularis ornithorhynchos is commonly misspelled in the literature as P. ornithorhyncha. As this is the orthography used in floras since C. L. Hitchcock et al. (1955–1969, vol. 4), it also appears on recent herbarium specimens. How this error arose is unclear because the same misspelling also appears on specimens older than 1959. Another occasional misspelling is ornithorhynchus. The galeas of Pedicularis ornithorhynchos taper into long conical, uncoiled beaks that are very conspicuous above the horizontally expanded lateral lobes of the abaxial lips. No more than 15 flowers are borne on the capitate heads, with the internodes greatly expanding as the fruits develop. Compared to the basal leaves, the cauline leaves of the inflorescence are very few and much shorter, but otherwise similar in form. This alpine and tundra species occurs in the Alaskan panhandle and Coast Mountains as well as the coast ranges of mainland British Columbia south into the northern Cascade Range as far south as Mount Rainier; it is also recorded from alpine areas on Vancouver Island and the Haida Gwaii (Queen Charlotte Islands), British Columbia. Pedicularis ornithorhynchos is pollinated by bumblebees that hang inverted from the galea and cause release of pollen by wing-muscle vibrations (L. W. Macior 1973). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 525. | FNA vol. 17, p. 526. |
Parent taxa | Orobanchaceae > Pedicularis | Orobanchaceae > Pedicularis |
Sibling taxa | ||
Name authority | Michaux: Fl. Bor.-Amer. 2: 18. (1803) | Bentham: in W. J. Hooker, Fl. Bor.-Amer. 2: 108. (1838) |
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