Kingdom:
Phylum:
Angiosperms
Order:
Lamiales
Species:
racemosa
ID:
1137600

Status:
valid

Authors:
Douglas ex Benth.

Source:
tro

Year:
1838

Citation Micro:
Fl. Bor.-Amer. 2: 108 (1838)

WFO Identifier:
wfo-0001136938



Common Names

  • Marsh Lousewort
  • Racemose Lousewort
  • Red Lousewort


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Description

Pedicularis racemosa (also called Racemose Lousewort, among many other common names) is an annual herb that grows to a height of about 0.5 m. It has a single stem and a basal rosette of leaves. The flowers are white or pinkish in color and are borne in a dense spike. It is native to western North America, from British Columbia to California, and grows in moist meadows and open woods.

Uses & Benefits

Pedicularis racemosa is a medicinal plant used to treat coughs, colds, and fever. It is also used as a diuretic and to treat urinary tract infections. It has been used to treat skin conditions, including eczema and psoriasis. It is also used as a tonic and to treat digestive problems.

Cultivars, Varieties & Sub-species

Pedicularis racemosa sub. alba Pennell
Pedicularis racemosa sub. racemosa

Flower, Seeds and Seedlings

Pedicularis racemosa has small, yellow-green flowers that are clustered in racemes. The seeds are small and black, and the seedlings are small and delicate.

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Cultivation and Propagation

Pedicularis racemosa can be propagated by seed or division. It prefers moist, well-drained soils in full sun to partial shade. It is drought tolerant once established. Deadhead spent flowers to encourage reblooming.

Where to Find Pedicularis racemosa

Pedicularis racemosa can be found in the western United States, from California to Montana.

Species in the Pedicularis genus

Pedicularis collata, Pedicularis collettii, Pedicularis columigera, Pedicularis comosa, Pedicularis compacta, Pedicularis curvipes, Pedicularis chamissonoides, Pedicularis cheilanthifolia, Pedicularis chihuahuensis, Pedicularis cholashanensis, Pedicularis chorgonica, Pedicularis crassirostris, Pedicularis condensata, Pedicularis cornigera, Pedicularis cooperi, Pedicularis brachystachys, Pedicularis cabulica, Pedicularis brevifolia, Pedicularis brachyodonta, Pedicularis brevirostris, Pedicularis breviscaposa, Pedicularis bonatii, Pedicularis brachychila, Pedicularis cacuminidenta, Pedicularis caucasica, Pedicularis cephalanthoides, Pedicularis cenisia, Pedicularis cadmea, Pedicularis canescens, Pedicularis exigua, Pedicularis ferdinandi, Pedicularis evrardii, Pedicularis ernesti-mayeri, Pedicularis elsholtzioides, Pedicularis fetisowi, Pedicularis eriophora, Pedicularis fletcheri, Pedicularis flexosoides, Pedicularis flava, Pedicularis foliosa, Pedicularis fissa, Pedicularis flagellaris, Pedicularis flammea, Pedicularis delphinata, Pedicularis dasystachys, Pedicularis denudata, Pedicularis dhurensis, Pedicularis elongata, Pedicularis czuiliensis, Pedicularis daghestanica,

Species in the Orobanchaceae family

Aeginetia indica, Aeginetia mirabilis, Aeginetia mpomii, Aeginetia selebica, Aeginetia sessilis, Aeginetia sinensis, Aeginetia flava, Aeginetia acaulis, Agalinis angustifolia, Agalinis aphylla, Agalinis aspera, Agalinis auriculata, Agalinis bandeirensis, Agalinis bangii, Agalinis brachyphylla, Agalinis calycina, Agalinis chaparensis, Agalinis communis, Agalinis decemloba, Agalinis densiflora, Agalinis digitalis, Agalinis divaricata, Agalinis edwardsiana, Agalinis fasciculata, Agalinis fiebrigii, Agalinis filicaulis, Agalinis filifolia, Agalinis gattingeri, Agalinis genistifolia, Agalinis gypsophila, Agalinis heterophylla, Agalinis homalantha, Agalinis humilis, Agalinis itambensis, Agalinis kingsii, Agalinis lanceolata, Agalinis laxa, Agalinis linarioides, Agalinis linifolia, Agalinis maritima, Agalinis megalantha, Agalinis meyeniana, Agalinis nana, Agalinis navasotensis, Agalinis neoscotica, Agalinis obtusifolia, Agalinis oligophylla, Agalinis peduncularis, Agalinis pennellii, Agalinis plukenetii,

References

George Bentham (1800-1884): Based on occurrence of standard abbreviation 'Benth.' in the authors string.
David Douglas (1799-1834): Based on occurrence of standard abbreviation 'Douglas' in the authors string.
POWO record for urn:lsid:ipni.org:names:30019480-2: Govaerts R (ed.). 2023. WCVP: World Checklist of Vascular Plants [Version 11]. Facilitated by the Royal Botanic Gardens, Kew. [WWW document] URL http://sftp.kew.org/pub/data-repositories/WCVP/ [accessed 20 April 2023].