Asclepias Tuberosa (Asclepias Tuberosa): Complete Guide to Benefits, Uses & Growing Tips

The captivating perennial Asclepias tuberosa, widely known as Butterfly Milkweed or Pleurisy Root, is far more than just a garden showstopper. This vibrant native North American plant plays a critical ecological role as an obligate host for Monarch butterfly larvae and boasts a rich history of traditional medicinal use, particularly for respiratory ailments. Its unique clear sap, a distinguishing feature among its milky-sapped relatives, only adds to its intrigue.

Here's the deal: If you're curious about plants that offer both stunning beauty and profound utility, you've come to the right place. We agree that understanding the full scope of a plant's value—from its botanical intricacies to its historical applications—is essential for any plant enthusiast or researcher. We promise to guide you through a comprehensive exploration of Asclepias tuberosa, unveiling its botanical profile, ecological significance, traditional benefits, cultivation secrets, and important safety considerations. Get ready to learn how this unassuming herb earned its place in gardens, ecosystems, and historical pharmacopoeias.

In the following sections, we'll dive deep into what makes Asclepias tuberosa so special, cover its practical applications, offer a detailed guide to growing it at home, explore its fascinating cultural significance, and address common questions to equip you with expert-level knowledge.

01What is Asclepias Tuberosa?

Asclepias tuberosa is a striking perennial herb, commonly recognized as Butterfly Milkweed or Pleurisy Root, celebrated for its brilliant orange flowers and its pivotal role in supporting butterfly populations. Botanically, it stands out within the Milkweed family (Apocynaceae, formerly Asclepiadaceae) due to its clear, watery sap, a distinct characteristic contrasting with the milky latex found in most other Asclepias species.

This captivating plant is native to a broad swathe of Eastern and Southern North America, encompassing regions across the United States, Canada, and Mexico. It thrives in open, well-drained habitats such as prairies, meadows, open woodlands, and roadsides, showcasing its adaptability to various soil conditions as long as they aren't waterlogged. Typically, Asclepias tuberosa grows to a height of 0.3 to 0.9 meters (1 to 3 feet), forming dense clumps from its robust, woody rootstocks. These roots are often tuberous and enlarged, a feature that gives the plant its specific epithet 'tuberosa'.

Its stems are characteristically hairy, erect, and unbranched, providing a sturdy structure for its foliage and flowers. The leaves are alternate, simple, and lance-shaped, measuring approximately 5 to 10 centimeters long. They exhibit a shiny green surface above and a velvety texture beneath, contributing to the plant's lush appearance. The true spectacle, however, emerges from late spring to early summer when the plant bursts into bloom with showy, rounded to flat-topped clusters of individual flowers near the branch tips. These vibrant blossoms typically range from bright orange to red, though occasional yellow variants can be found, each presenting five downward-bent petals that attract a plethora of pollinators.

02Key Benefits & Uses of Asclepias Tuberosa

Asclepias tuberosa, known as Butterfly Milkweed or Pleurisy Root, offers a remarkable array of benefits, spanning ecological importance, traditional medicinal applications, and ornamental value. Its diverse attributes make it a keystone species in native ecosystems and a historically significant plant in folk medicine.

• Monarch Host Plant — This is arguably its most celebrated ecological role. Asclepias tuberosa is an essential and irreplaceable host plant for the larvae of Monarch butterflies (Danaus plexippus). Female Monarchs lay their eggs exclusively on milkweed species, and the emerging caterpillars feed on the leaves, accumulating vital nutrients and defensive compounds that protect them from predators.
• Pollinator Magnet — Beyond Monarchs, the vibrant orange flowers of Butterfly Milkweed are a powerful attractant for a wide variety of other pollinators. These include numerous species of native bees, wasps, beetles, and an array of butterflies such as Swallowtails, Fritillaries, and Skippers, making it a critical component for supporting local biodiversity.
• Vibrant Ornamental Value — With its stunning clusters of bright orange to red blossoms, Asclepias tuberosa is a highly prized plant in native plant gardens, pollinator gardens, and perennial borders. Its long blooming period from late spring to early summer adds a splash of consistent color and dynamic life to any landscape.
• Traditional Respiratory Support — Historically revered as 'Pleurisy Root,' the plant was traditionally used to alleviate inflammation of the lung lining and thorax. Indigenous tribes and early European American folk medicine practitioners utilized its root to offer relief for conditions like pleurisy and mild pulmonary edema, leveraging its perceived anti-inflammatory properties.
• Expectorant Action — The root of Asclepias tuberosa was historically employed as an expectorant. Traditional preparations aimed to stimulate the expulsion of mucus and phlegm from the respiratory passages, helping to clear congestion and ease breathing during colds, coughs, and other chest conditions.
• Diaphoretic Properties — In traditional contexts, Pleurisy Root was believed to possess diaphoretic properties, meaning it could promote perspiration. This action was thought to aid in fever reduction and facilitate detoxification by increasing activity through the skin, a common approach in historical wellness practices.
• Bronchial Dilation Support — Folk medicine traditions suggested that components within the root might stimulate the vagus nerve, potentially contributing to bronchial dilation. This physiological effect could have historically offered relief by easing breathing in individuals experiencing various respiratory conditions, though modern research is required for confirmation.
• Anti-inflammatory Effects — European American folk medicine notably utilized the root of Asclepias tuberosa to reduce inflammation, particularly within the respiratory system. This traditional application highlights a perceived ability to soothe irritated tissues and mitigate inflammatory responses.
• Wound Healing — Indigenous tribes, such as the Omahas, employed a unique method for wound care. They applied chewed or pulverized fresh root directly to wounds and swellings. This practice was intended to aid in the healing process and reduce inflammation, showcasing its versatile traditional uses beyond internal ailments.
• Digestive Aid — While less documented than its respiratory uses, some traditional practices have referenced Asclepias tuberosa as a digestive aid. These applications were typically for minor digestive complaints, though specific details on preparation and efficacy are less clear in historical records.
• Drought Tolerance — Once established, Asclepias tuberosa develops a deep, tuberous root system that makes it exceptionally drought-tolerant. This resilience makes it an ideal choice for xeriscaping, low-water gardens, and regions prone to dry spells, reducing the need for supplemental irrigation.
• Clear Sap Distinction — Its clear, watery sap is a significant botanical feature that distinguishes it from most other milkweeds, which exude a milky latex. This characteristic is not only a key identification marker but also suggests different chemical profiles compared to its relatives, influencing its traditional uses.
• Tuberous Root System — The enlarged, woody roots, from which its 'tuberosa' epithet derives, contribute to the plant's hardiness and perennial nature. This robust underground structure allows it to store nutrients and moisture, enabling it to return reliably year after year and withstand adverse conditions.
• Erosion Control — Due to its deep and extensive root system, Asclepias tuberosa can be an effective plant for stabilizing soils and preventing erosion, particularly in sloped areas or exposed sites. Its fibrous roots help bind soil particles, contributing to landscape integrity.

03How to Plant & Grow Asclepias Tuberosa

Cultivating Asclepias tuberosa successfully requires understanding its specific preferences, especially regarding soil, sunlight, and water. This guide will help you establish a thriving patch of Butterfly Milkweed, ready to beautify your garden and support local wildlife.

Soil Preparation

Asclepias tuberosa is not particularly fussy about soil fertility but demands excellent drainage. The truth is, soggy roots are its nemesis. Prepare a site with well-drained soil, ideally a sandy loam or a mix that mimics its native prairie conditions. If your soil is heavy clay, amend it generously with organic matter such as compost, coarse sand, or fine gravel to improve drainage. Aim for a neutral to slightly acidic pH, though it tolerates a broader range.

Planting Depth & Spacing

When planting seeds, sow them directly on the soil surface in the fall or very early spring, lightly covering them with about 1/8 inch of soil or sand. For transplants, whether from nursery pots or propagated rhizomes, plant them at the same depth they were in their original container. Want to know the best part? Due to their deep taproot, mature plants are difficult to transplant, so choose your permanent location wisely. Space individual plants approximately 1 to 2 feet (30-60 cm) apart to allow for mature growth and good air circulation as they form clumps.

Sun Requirements

Full sun is non-negotiable for Asclepias tuberosa. This plant absolutely thrives with at least six to eight hours of direct sunlight per day. Insufficient light will result in leggy growth, reduced flowering, and overall weaker plants. Therefore, select the sunniest spot in your garden for optimal performance and bloom production.

Watering Needs

Once established, Butterfly Milkweed is remarkably drought-tolerant, thanks to its deep tuberous root system. However, during the first growing season, consistent moisture is crucial for root establishment. Water regularly, about once a week, especially during dry spells, ensuring the top few inches of soil dry out between waterings. After establishment, supplemental watering is rarely needed unless you experience prolonged periods of extreme drought.

Seasonal Timing

The best time to plant Asclepias tuberosa depends on your propagation method. For seeds, direct sowing in the fall allows for natural cold stratification over winter and germination in the spring. Alternatively, seeds can be sown indoors in late winter after a simulated cold stratification period (more on this below). Transplants from nurseries are best planted in spring after the last frost, giving them the entire growing season to establish before winter.

Zone Information

Asclepias tuberosa is a hardy perennial, well-suited for USDA Plant Hardiness Zones 3 through 9. This wide range covers much of its native habitat and indicates its ability to withstand cold winters and hot summers. However, performance can vary slightly within these zones, with plants in warmer zones potentially blooming earlier and for a longer duration, and those in colder zones benefiting from a protective winter mulch.

04Caring for Asclepias Tuberosa

Maintaining Asclepias tuberosa is relatively straightforward, as it's a low-maintenance native plant. However, a little care can go a long way in ensuring vibrant blooms, healthy growth, and a flourishing habitat for pollinators.

Pruning

Deadheading spent flower clusters is highly recommended, as it encourages the plant to produce more blooms throughout the season, extending its ornamental display. If you wish to collect seeds, allow some of the later flower clusters to develop into seed pods. In late fall or early winter, after the foliage has died back, you can cut the entire plant down to about 6 inches from the ground. This tidies up the garden and allows for fresh growth in the spring. However, some gardeners prefer to leave the dried stems and seed pods intact over winter, providing visual interest and habitat for beneficial insects.

Fertilizing

Generally, Asclepias tuberosa does not require supplemental fertilization. It is adapted to growing in nutrient-poor soils. In fact, excessive fertilization, especially with high-nitrogen fertilizers, can promote lush foliage at the expense of flower production. If your soil is exceptionally poor, a light application of compost around the base of the plant in early spring can provide a gentle boost of nutrients without overfeeding. Avoid synthetic fertilizers if your goal is an organic, pollinator-friendly garden.

Mulching

A light layer of organic mulch, such as shredded leaves or bark, can be beneficial for Asclepias tuberosa, especially in its first year. Mulch helps to retain soil moisture, suppress weeds, and regulate soil temperature. Apply about 1-2 inches of mulch, keeping it a few inches away from the crown of the plant to prevent rot. In colder climates (Zone 3-4), a slightly thicker layer of mulch in late fall can provide extra winter protection, though it's generally very cold hardy.

Companion Planting

Pairing Asclepias tuberosa with complementary native plants not only enhances your garden's aesthetic but also creates a more robust pollinator habitat. Excellent companions include other sun-loving, drought-tolerant perennials like Coneflowers (Echinacea purpurea), Blazing Star (Liatris spicata), Wild Bergamot (Monarda fistulosa), and various native grasses. These combinations provide a continuous succession of blooms, diverse food sources, and varied structural elements for wildlife.

Seasonal Maintenance Calendar

• Early Spring (March-April): Observe new growth. Clear away any remaining winter debris. If desired, apply a thin layer of compost.
• Late Spring to Early Summer (May-July): Enjoy the primary bloom period. Monitor for pests (especially aphids). Water regularly if conditions are dry, particularly for young plants.
• Mid-Summer to Late Summer (July-August): Continue deadheading for rebloom. Watch for seed pod development if you plan to collect seeds. Continue watering during extended dry periods.
• Fall (September-November): Collect ripe seed pods before they split. Allow foliage to die back naturally. Cut back dead stems to the ground or leave them standing for winter interest and wildlife habitat.
• Winter (December-February): Dormancy period. If in a very cold zone, consider a light protective mulch.

05Common Asclepias Tuberosa Problems & Solutions

While Asclepias tuberosa is a relatively robust plant, like all garden inhabitants, it can occasionally encounter specific pests and diseases. Understanding these common issues and their solutions will help you maintain a healthy and vibrant milkweed patch, especially crucial for supporting Monarch populations.

Common Pests

The presence of certain insects on milkweed is often a sign of a healthy ecosystem, as many are specialist feeders. However, some can become problematic if their populations get out of control.

• Oleander Aphids (Aphis nerii):
  • Identification: These bright yellow-orange aphids are often found in clusters on new growth, stems, and flower buds. They suck sap, which can cause distorted growth and a sticky residue called honeydew.
  • Organic Solutions: For light infestations, a strong spray of water can dislodge them. Introduce natural predators like ladybugs or lacewings. Neem oil spray or insecticidal soap can be effective for more severe outbreaks, applied in the evening to protect beneficial insects.
  • Conventional Solutions: Systemic insecticides can be used, but these are highly discouraged for milkweed due to the risk of harming Monarch caterpillars and other beneficial pollinators.
• Spider Mites:
  • Identification: Tiny, almost microscopic pests that create fine webbing on the undersides of leaves. Leaves may appear stippled or discolored. They thrive in hot, dry conditions.
  • Organic Solutions: Increase humidity around the plants by misting. Apply insecticidal soap or neem oil. Predatory mites can also be introduced.
  • Conventional Solutions: Specific miticides can be used, but again, caution is advised around pollinator plants.
• Milkweed Bugs (Large and Small):
  • Identification: Bright red and black true bugs that feed on milkweed seeds. While they may look alarming, they generally do not cause significant damage to the plant itself, unless seed production is your primary goal.
  • Solutions: Typically, no intervention is needed as they are part of the milkweed ecosystem and rarely harm plant health. If desired, they can be hand-picked.
• Monarch Caterpillars:
  • Identification: While not pests, it's important to differentiate them. These are striped green, black, and yellow caterpillars. They will eat milkweed leaves, which is exactly what they are supposed to do.
  • Solution: Celebrate their presence! Plant more milkweed if defoliation is extensive.

Common Diseases

Disease issues for Asclepias tuberosa are generally infrequent, especially when grown in appropriate conditions. The biggest risk factors are usually related to poor air circulation or excessive moisture.

• Root Rot:
  • Identification: Yellowing, wilting foliage despite adequate watering, and ultimately plant collapse. Caused by fungi in waterlogged soil.
  • Solutions: Prevention is key. Ensure excellent drainage when planting. Avoid overwatering, especially in heavy soils. Unfortunately, once root rot is severe, recovery is unlikely.
• Powdery Mildew:
  • Identification: A white, powdery coating on leaves and stems. Can lead to distorted growth and reduced photosynthesis. Often occurs in humid conditions with poor air circulation.
  • Organic Solutions: Improve air circulation by spacing plants appropriately. Remove affected leaves. Apply fungicidal sprays such as neem oil or a homemade baking soda solution (1 teaspoon baking soda per quart of water with a few drops of dish soap).
  • Conventional Solutions: Commercial fungicides specifically for powdery mildew can be used.

Integrated Pest Management (IPM) for Asclepias Tuberosa

The best approach for managing pests and diseases on Asclepias tuberosa is through Integrated Pest Management (IPM). This holistic strategy emphasizes prevention and non-chemical solutions first:

1. Proper Site Selection: Plant in full sun with well-drained soil.
2. Good Cultural Practices: Ensure proper spacing for air circulation, avoid overwatering, and keep the garden free of excessive debris.
3. Regular Monitoring: Inspect plants frequently for early signs of pests or disease.
4. Physical Removal: Hand-pick larger pests or prune affected leaves.
5. Biological Controls: Encourage beneficial insects that prey on pests.
6. Least Toxic Sprays: Use organic options like insecticidal soap or neem oil only when necessary and at appropriate times (e.g., evening) to minimize harm to beneficials.

By following these guidelines, you can ensure your Butterfly Milkweed remains a healthy and vital resource for Monarchs and other pollinators.

06How to Grow Asclepias Tuberosa at Home

Growing Asclepias tuberosa at home is a rewarding experience, providing both a beautiful display and a vital lifeline for Monarch butterflies. While it requires a bit of patience, especially from seed, its resilience and low-maintenance nature make it an excellent choice for any gardener. Here's a step-by-step guide to cultivating this magnificent plant.

1. Choose the Right Location: Full Sun is Key

   First things first, select a spot in your garden that receives full sunlight – at least 6 to 8 hours of direct sun per day. This plant will not thrive in shade, producing leggy growth and few flowers. Ensure the chosen area also has good air circulation.

2. Prepare the Soil: Drainage is Paramount

   Asclepias tuberosa is accustomed to lean, well-drained soils, much like its native prairie habitats. If your soil is heavy clay, amend it generously with organic matter such as compost, coarse sand, or fine gravel to improve drainage. A raised bed can also be an excellent option for ensuring proper drainage. The goal is to prevent soggy roots, which are detrimental to this plant.

3. Propagate from Seed: Cold Stratification is Essential

   Seeds require a period of cold stratification to break dormancy and germinate reliably. Here's how:

   • Collecting Seeds: Harvest seed pods in late summer or early fall when they turn brown and begin to split, but before the silky "floss" carries the seeds away on the wind.
   • Cold Stratification Method: Place seeds in a moist paper towel inside a sealed plastic bag or a container filled with damp sand/vermiculite. Refrigerate for approximately three months (90 days). Alternatively, direct sow seeds outdoors in late fall for natural cold stratification over winter.
   • Sowing Indoors (Spring): After stratification, sow seeds indoors 6-8 weeks before the last frost. Plant them 1/8 inch deep in seed-starting mix. Keep the soil consistently moist but not waterlogged, and provide warmth (around 70-75°F or 21-24°C).
   • Sowing Outdoors (Spring): Once the danger of frost has passed and after stratification, sow seeds directly into prepared garden beds, lightly covering them.

   The truth is, germination can be erratic, so don't be discouraged if not all seeds sprout at once. Patience is a virtue with this plant!

4. Consider Rhizome Cuttings or Nursery Plants: For Faster Establishment

   For quicker results, you can propagate Asclepias tuberosa by dividing dormant tuberous rhizomes in early spring. Ensure each piece has at least one bud. Alternatively, purchase young plants from a reputable native plant nursery. When transplanting, be mindful of its deep taproot; young plants establish better than mature ones. Dig a hole twice as wide as the root ball and just as deep, gently placing the plant and backfilling with soil.

5. Watering: Establish Then Conserve

   During the first year, water newly planted seeds or transplants regularly, ensuring the soil remains moist but not saturated. This helps the deep root system establish. However, once established, Asclepias tuberosa is remarkably drought-tolerant. It rarely needs supplemental watering unless there are prolonged periods of extreme drought.

6. Light Requirements: Maximum Sun Exposure

   Reiterating this crucial point: full sun is absolutely essential for abundant blooms and robust growth. Anything less will result in sparse flowering and weak plants. Ensure no taller plants or structures will shade it as it grows.

7. Temperature & Hardiness: A Resilient Perennial

   This plant is incredibly hardy, thriving in USDA Zones 3-9. It tolerates a wide range of temperatures, from freezing winters to hot, dry summers. No special winter protection is typically needed once established, though a light layer of mulch can benefit plants in the coldest parts of its range.

8. Fertilization: Less is More

   As a native plant adapted to leaner soils, Asclepias tuberosa generally does not require fertilization. Over-fertilizing, particularly with high-nitrogen formulas, can encourage leafy growth at the expense of its characteristic vibrant flowers. If your soil is exceptionally poor, a light application of balanced organic compost in early spring is more than sufficient.

9. Ongoing Care: Deadheading & Pest Monitoring

   Deadhead spent flower clusters to encourage continuous blooming throughout the season, unless you want to collect seeds. Monitor for common pests like aphids, especially on new growth, but remember that some insects are part of the ecosystem. Provide adequate spacing for good air circulation to deter fungal issues. Want to know the best part? Its low-maintenance nature means more time to enjoy its beauty and ecological impact.

07Fascinating Asclepias Tuberosa Facts

Asclepias tuberosa carries a rich tapestry of history, folklore, and ecological importance that extends far beyond its vibrant appearance. Its journey through time reflects both human ingenuity and the intricate dance of nature.

"The clear sap of Asclepias tuberosa is a unique botanical anomaly, setting it apart from its milky-sapped brethren and highlighting nature's endless variations within a single genus."

Historically, the plant earned its widely recognized common name "Pleurisy Root" due to its extensive use in traditional medicine, particularly among Indigenous North American tribes and later by European American folk practitioners. The root was highly valued for its perceived ability to treat respiratory ailments, especially pleurisy—an inflammation of the lung lining. Preparations were often made into decoctions or teas to alleviate chest discomfort, reduce fever, and promote expectoration, acting as a diaphoretic and expectorant.

Indigenous tribes utilized Asclepias tuberosa in various ways. Beyond respiratory conditions, the Omahas, for instance, applied chewed or pulverized fresh root directly to wounds and swellings. This suggests an understanding of its anti-inflammatory and potential antiseptic properties, demonstrating a profound traditional botanical knowledge. Furthermore, certain tribes employed specific preparations as an emetic, primarily for detoxification purposes, showcasing a versatile range of applications.

Its ecological significance is perhaps its most celebrated modern attribute. Asclepias tuberosa is an obligate host plant for the Monarch butterfly. This means Monarch caterpillars can only feed on milkweed leaves. Without milkweed, Monarchs cannot complete their life cycle. As Monarch populations face severe threats from habitat loss and pesticide use, planting Asclepias tuberosa has become a crucial conservation effort, turning ordinary gardens into vital waystations for these iconic pollinators.

The clear sap of Asclepias tuberosa is a fascinating botanical anomaly. Most other milkweed species, including the common milkweed (Asclepias syriaca), exude a thick, white, milky latex when cut. This clear sap is a key identifying feature and highlights a unique physiological difference within the genus, potentially influencing its chemical composition and traditional medicinal applications.

The genus name, Asclepias, is derived from Asclepius, the Greek god of medicine and healing, a testament to the recognized medicinal properties of many plants within this genus. The specific epithet, tuberosa, directly refers to the plant's distinctive tuberous, enlarged rootstock, which not only gives it its resilience but also contributes to its historical medicinal value.

Locally, Asclepias tuberosa goes by many charming common names, reflecting its characteristics and uses. Besides Butterfly Milkweed and Pleurisy Root, it's also known as Orange Milkweed, Chigger Flower (though it doesn't attract chiggers, it blooms when they are prevalent), and Canada Root. These names underscore its widespread presence and cultural integration across different regions.

In addition to its ecological role, its vibrant orange flowers make it a highly desirable ornamental plant. It attracts not just Monarchs but a multitude of other pollinators, including a diverse range of bees, other butterfly species, and beneficial insects. This makes it a keystone species in any pollinator garden, contributing significantly to local biodiversity and ecosystem health. Its drought tolerance, once established, further solidifies its value as a resilient and sustainable garden choice.

For another native plant with significant pollinator appeal and medicinal history, consider exploring Monarda fistulosa.

08Asclepias Tuberosa: Key Takeaways

Asclepias tuberosa, truly a marvel of the plant kingdom, stands out as a vibrant perennial with multifaceted value. From its stunning orange blossoms that electrify gardens to its indispensable role as a host plant for the iconic Monarch butterfly, its ecological contributions are profound. Beyond aesthetics, its historical significance as 'Pleurisy Root' in traditional medicine, particularly for respiratory support, underscores its powerful ethnobotanical legacy.

Here are the key takeaways:

• Ecological Cornerstone: It is an essential host plant for Monarch butterfly caterpillars and a powerful magnet for a wide array of pollinators.
• Traditional Medicinal Value: Historically revered as 'Pleurisy Root' for respiratory conditions, including pleurisy, coughs, and as an expectorant.
• Unique Botanical Features: Distinguished by its clear, watery sap and robust, tuberous root system, which gives it its name.
• Easy Cultivation: Thrives in full sun and well-drained soil, becoming highly drought-tolerant once established, making it ideal for native and low-maintenance landscapes.
• Conservation Impact: Planting Asclepias tuberosa directly contributes to Monarch butterfly conservation efforts.

We hope this comprehensive guide has deepened your appreciation for Asclepias tuberosa. Its blend of beauty, utility, and ecological importance makes it a plant truly worthy of study and cultivation. We encourage you to explore more of the diverse and fascinating world of plants on Flora Medical Global, where research-grade botanical information meets human-readable insights. Your journey into the natural world is just beginning!

09Frequently Asked Questions About Asclepias Tuberosa

10Asclepias Tuberosa: Scientific References

Authoritative sources and related guides:

• Wikipedia — background reference
• PubMed — peer-reviewed studies
• Kew POWO — botanical reference
• NCBI PMC — open-access research
• WHO — global health authority

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