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Pedicularis alopecuroides

(Canadian Lousewort)

Interesting Facts

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Common Names

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Common Names in English:

Betony, Canadian Lousewort, Lousewort, Louseworts

Description

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Family Orobanchaceae

Herbs annual , biennial, or perennial parasites, without chlorophyll. Stems unbranched or sometimes branched. Leaves scalelike, spirally or subimbricately arranged. Inflorescences racemose, spicate , or subcapitate , rarely 1-flowered; bract 1, usually similar to leaves; bractlets 2, adnate to base of calyx or pedicel. Flowers bisexual , subsessile or pedicelled. Calyx tubular, cupular, or campanulate , (3 or) 4-6-lobed, 2-6-parted, 6-toothed, or spathelike, sometimes absent or of 3 free sepals. Corolla bilabiate, usually curved , sometimes tubular-campanulate or funnelform with 5 subequal lobes ; upper lip entire, emarginate , or 2-lobed; lower lip 3-lobed. Stamens 4, didynamous , inserted at base of corolla tube ; filaments slender; anthers 2-celled, dehiscing longitudinally, sometimes 1 cell fertile and another sterile or reduced to spur. Pistil 2- or 3-carpellate; ovary superior; placentas 2-4 or 6(-10), parietal or sometimes axile at ovary base; ovules 2-4 or numerous , anatropous . Style long; stigma inflated , discoid , peltate, or 2-4-lobed. Capsule usually dehiscing loculicidally by 2 or 3(or 4) valves . Seeds minute, testa pitted or reticulate .

About 15 genera and 150 species: North Temperate regions , less represented in Africa, America, Asia, and Australia; nine genera and 42 species (nine endemic) in China.[1]

Genus Pedicularis

Herbs perennial or annual , rarely biennial, hemiparasitic. Leaves alternate, opposite, or whorled , usually pinnatifid to 1- or 2-pinnatisect, rarely entire or dentate . Lower leaves usually long petiolate ; upper leaves often ± sessile. Inflorescences terminal or flowers axillary ; bracts usually leaflike. Calyx tubular to campanulate , often ± bilabiate, usually deeply cleft anteriorly, (2--) 5-lobed. Corolla purple, red, yellow, or white, strongly bilabiate; upper lip (galea) hooded , enclosing anthers , laterally compressed , rounded or truncate , or terminating in teeth or in a beak ; lower lip 3-lobed, usually spreading , external to upper lip in bud. Stamens 4, didynamous ; filaments glabrous or pubescent ; anthers mucronate or not. Stigma capitate. Capsule moderately compressed or not, loculicidal. Seeds numerous , reticulate or costate .

About 600 species: best represented in the mountains of SW China and widespread in the frigid and alpine zones of the northern hemisphere; 352 species (271 endemic) occur in China.

From the limited available data, the species of Pedicularis in China are pollinated by bumblebees gathering nectar and/or pollen on nectariferous non-beaked species, and pollen only, by scraping or vibrating,on beaked species including those with long corolla tubes (Macior, L. W. 1988. Plant Species Biol. 3: 61--66.; Macior, L. W. & S. K . Sood. 1991. Plant Species Biol. 6: 75--81.; Macior, L. W., pers. comm. ).

The rank of series has been traditionally used in Pedicularis since the time of Prain's work (Ann. Bot. Gard. (Calcutta) 3: 1--196. 1890). Sections (and subgenera ) have also been used (e.g. , by Bunge in Walpers, Repert. Bot. Syst. 3: 409--433. 1844; Li, H. L. Proc. Acad. Nat. Sci. Philadelphia 101: 1--214. 1949; Yamazaki, T. 1988. A revision of the genus Pedicularis in Nepal. in: Ohba, H. & Malla, S.B. (eds.), The Himalayan Plants 1: 91--161, and others). [2]

Taxonomy

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Synonyms

Pedicularis H. L. Li Ser. Aloenses • Pedicularis H. L. Li Ser. Amplitubae • Pedicularis H. L. Li Ser. Batangenses • Pedicularis H. L. Li Ser. Corydaloides • Pedicularis H. L. Li Ser. Craspedotrichae • Pedicularis H. L. Li Ser. Curvitubae • Pedicularis H. L. Li Ser. Cyathophyllae • Pedicularis H. L. Li Ser. Dichotomae • Pedicularis H. L. Li Ser. Dissectae • Pedicularis H. L. Li Ser. Filiculae • Pedicularis H. L. Li Ser. Infirmae • Pedicularis H. L. Li Ser. Kialenses • Pedicularis H. L. Li Ser. Lasiophrydes • Pedicularis H. L. Li Ser. Macrorhynchae • Pedicularis H. L. Li Ser. Meteororhynchae • Pedicularis H. L. Li Ser. Omiianae • Pedicularis H. L. Li Ser. Pentagonae • Pedicularis H. L. Li Ser. Pteridifoliae • Pedicularis H. L. Li Ser. Recurvae • Pedicularis H. L. Li Ser. Reges • Pedicularis H. L. Li Ser. Talienses • Pedicularis H. L. Li Ser. Trichoglossae • Pedicularis H. L. Li Ser. Tsekouenses • Pedicularis H. L. Li Ser. Wilsoniae • Pedicularis H. Limpr. Ser. Abrotanifoliae • Pedicularis H. Limpr. Ser. Parvifoliae • Pedicularis H. Limpr. Ser. Pseudo-Oederianae • Pedicularis L. • Pedicularis Limpr. Ser. Pseudorostratae • Pedicularis Linnaeus • Pedicularis Maxim. Ser. Lyratae • Pedicularis Prain Ser. Lachnoglossae • Pedicularis Prain Ser. Longicaules • Pedicularis Prain Ser. Longiflorae • Pedicularis Prain Ser. Longipedes

Notes

An accepted name in the RHS Horticultural Database.

Similar Species

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Members of the genus Pedicularis

ZipcodeZoo has pages for 80 species, subspecies, varieties, forms, and cultivars in this genus:

P. alopecuroides (Canadian Lousewort) · P. angustifolia (Mogollon Mountain Lousewort) · P. attollens (Attol Lousewort) · P. attollens subsp. protogyna (Little Elephantshead) · P. aurantiaca (Indian Warrior) · P. bracteosa (Bracted Lousewort) · P. bracteosa paysoniana (Payson's Lousewort) · P. bracteosa var. atrosanguinea (Bracted Lousewort) · P. bracteosa var. bracteosa (Bracted Lousewort) · P. bracteosa var. canbyi (Canby Lousewort) · P. bracteosa var. flavida (Towering Lousewort) · P. bracteosa var. latifolia (Widepetal Lousewort) · P. bracteosa var. pachyrhiza (Towering Lousewort) · P. bracteosa var. paysoniana (Payson Lousewort) · P. canadensis (Canadian Lousewort) · P. canadensis canadensis (Smoothflower Lousewort) · P. canadensis fluviatilis (Canadian Lousewort) · P. canadensis subsp. fluviatilis (Canadian Lousewort) · P. capitata (Capitate Lousewort) · P. centranthera (Dwarf Lousewort) · P. chamissonis (Chamisso Lousewort) · P. contorta (Coiled Lousewort) · P. contorta var. contorta (Coiled Lousewort) · P. contorta var. ctenophora (Coil-Beaked Lousewort) · P. contorta var. rubicunda (Coil-Beaked Lousewort) · P. corydaloides (Canadian Lousewort) · P. crenulata (Meadow Lousewort) · P. cyathophylloides (Canadian Lousewort) · P. cystopteridifolia (Fern-Leaved Lousewort) · P. densiflora (Indian Warrior) · P. densiflora aurantiaca (Indian Warrior) · P. densiflora subsp. aurantiaca (Indian Warrior) · P. dudleyi (Dudley's Lousewort) · P. flammea (Red-Tip Lousewort) · P. flammea (Scarletfruit Passionflower) · P. furbishiae (Furbish Lousewort) · P. groenlandica (Bull Elephant's-Head) · P. hirsuta (Hairy Lousewort) · P. howellii (Howell Lousewort) · P. kanei (Woolly Lousewort) · P. labradorica (Labrador Lousewort) · P. labradorica var. labradorica (Labrador Lousewort) · P. labradorica var. sulphurea (Labrador Lousewort) · P. lanceolata (Lousewort) · P. langsdorfii (Langsdorf's Lousewort) · P. langsdorfii arctica (Langsdorf's Lousewort) · P. lapponica (Lapland Lousewort) · P. macrodonta (Muskeg Lousewort) · P. oederi (Oeder's Lousewort) · P. ornithorhyncha (Bird's-Beak Lousewort) · P. palustris (European Purple Lousewort) · P. palustris palustris (European Purple Lousewort) · P. parryi (Parry Cinchweed) · P. parryi subsp. mogollonica (Mogollon Lousewort) · P. parryi subsp. purpurea (Rocky Mountain Lousewort) · P. parviflora (Small-Flower Lousewort) · P. parviflora pennellii (Smallflower Lousewort) · P. parviflora subsp. pennellii (Pennell's Lousewort) · P. pennellii pennellii (Pennell's Lousewort) · P. procera (Giant Lousewort) · P. pulchella (Mountain Lousewort) · P. racemosa alba (Leafy Lousewort) · P. racemosa alba var. alba (Sickletop Betony) · P. racemosa subsp. alba (Sickletop Lousewort) · P. rainierensis (Mount Rainier Lousewort) · P. semibarbata (Bearded Lousewort) · P. semibarbata var. charlestonensis (Charleston Lousewort) · P. semibarbata var. semibarbata (Pinewoods Lousewort) · P. sudetica (Sudetan Lousewort) · P. sudetica albolabiata (Sudetic Lousewort) · P. sudetica interioides (Sudetic Lousewort) · P. sudetica interior (Sudetic Lousewort) · P. sudetica scopulorum (Sudetic Lousewort) · P. sudetica subsp. albolabiata (Sudetic Lousewort) · P. sudetica subsp. interior (Sudetic Lousewort) · P. sudetica subsp. pacifica (Pacific Lousewort) · P. sudetica subsp. scopulorum (Sudetic Lousewort) · P. surrecta (Greenland Lousewort) · P. sylvatica (Small Lousewort) · P. verticillata (Whorled Lousewort)

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. Zhi-Yun Zhang & Nikolai N. Tzvelev "Orobanchaceae". in Flora of China Vol. 18 Page 229. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. Yang Han-bi, Noel H. Holmgren, Robert R. Mill "Pedicularis". in Flora of China Vol. 18 Page 97. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 7/23/2012