Photo: Jerzy Opioła, CC BY-SA 3.0 (via Wikimedia Commons)

Whorled Lousewort

Pedicularis verticillata

Also known as Verticillate Lousewort

At a glance

Family

Orobanchaceae (broomrape family)

Type

Hemiparasitic alpine perennial wildflower

Parts used

None established; the flowers and whorled leaves are admired and photographed, not used medicinally or in the kitchen

Size

Low and compact, usually 4 to 20 cm (2 to 8 inches) tall

Bloom

Early to mid summer, roughly June through August depending on elevation and snowmelt

Habitat

Alpine and subalpine meadows, rocky slopes, and tundra across the circumpolar mountains of Europe, Asia, and northwestern North America

Acquisition

Forage

This plant in HerbSense

Traditional uses

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Whorled Lousewort belongs to a genus with a colorful, if entirely unearned, reputation. For generations, herders across the mountains of Europe and Asia blamed Pedicularis plants for lice outbreaks among grazing livestock, which is how the whole lousewort family got its common English name, though the plants themselves had nothing to do with it. Unlike a few of its cousins, such as wood betony, which earned a real place in traditional herbal cabinets, Whorled Lousewort has left almost no mark on the historical medicinal record, likely because it grows only in remote, high, cold ground far from most herbal traditions. Its true legacy lives in alpine ecology instead, as one of the small, tenacious wildflowers that mountain travelers and botanists have long used as a marker of healthy, undisturbed high-elevation meadow.

How to grow & use it

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Choose it when

“Choose this one for the thrill of spotting it on a high mountain trail, not for the teapot.”

Did you know?

The genus name Pedicularis comes from the Latin pediculus, meaning louse. Old-time herders across Europe noticed sheep and cattle grazing near these plants sometimes came down with lice, and rather than blame poor pasture hygiene, they blamed the wildflower, a superstition that stuck hard enough to name an entire genus. The species name verticillata simply describes the plant's most charming feature, the way its leaves circle the stem in tidy whorls.

Safety

Whorled Lousewort has no established history of internal, medicinal, or culinary use in Western or folk herbalism, so there are no traditional doses to reference here. It is a hemiparasitic plant, meaning it draws part of its water and nutrients directly from the roots of neighboring alpine plants, and the chemical makeup of any one specimen can shift unpredictably depending on which host it has tapped into. For that reason alone, it should not be eaten, brewed, or otherwise taken internally. Pregnant and nursing people should avoid it entirely, as there is no safety data of any kind. Many alpine and tundra habitats where it grows are also ecologically sensitive or protected, so it is worth checking local rules before disturbing any part of the plant. As always, speak with a qualified herbalist, botanist, or medical professional before considering any wild, undocumented plant for internal use.