Image source: Depositphotos.com

Overview

• Name: Sweet Potato (also known as Kumara)
• Botanical Name: Ipomoea batatas
• Plant Family: Convolvulaceae
• Native to: Tropical America, including Mexico, Central America, and northern South America; the crop is widely considered to have originated and been domesticated in tropical regions of South America.

Description

Sweet potato (Ipomoea batatas) is a warm-season herbaceous perennial vine typically grown as an annual vegetable crop in temperate climates because it is highly frost-sensitive. It is cultivated primarily for its enlarged, edible storage roots, which vary widely in size, shape, skin colour, and flesh colour depending on the cultivar. The plant belongs to the Convolvulaceae (morning glory) family and is not related to the common potato (Solanum tuberosum).

The plant has a vigorous, spreading growth habit, with long, trailing stems that creep along the soil surface and frequently root into the ground at the nodes when the stems touch the ground. Vine length varies by cultivar (cultivated variety) and growing conditions, but plants can spread up to 4m (13 ft) across the ground in a single growing season. When grown without support, the stems form a dense ground-covering mat.

Leaves are arranged alternately along the stems and are highly variable in shape, ranging from heart-shaped or ovate to deeply lobed. Foliage is usually green but may vary somewhat among cultivars. The stems are generally slender, herbaceous (non-woody), and trailing.

Flowers resemble those of ornamental morning glories. They are funnel- or trumpet-shaped and typically pale purple, pink, rose-violet, or occasionally white. Flowers are produced in clusters in the leaf axils (the junction where a leaf joins the stem), although flowering is often sparse in many cultivated varieties grown for root production.

The edible portion of the plant is its enlarged storage root. These roots may be fusiform (swollen in the middle and taper at both ends, resembling a spindle shape, like a radish), elongated, oval, or irregularly shaped, and their skin colours range from cream and tan to reddish, purple, or brown. Flesh colour varies from white and cream to yellow, orange, and purple. Sweet potatoes are classified as either soft-fleshed or firm-fleshed varieties. Soft-fleshed varieties are sweet, with orange flesh, and are often called yams. Firm-fleshed varieties have light orange, yellow, or even white flesh and last longer when stored. 

Although sweet potatoes are grown primarily for their roots, the entire plant, including the vines, is edible. Both the vine tips (greens) and the leaves can be harvested for eating. Sweet potato leaves and vines resemble spinach in flavour and texture; they can be eaten raw or cooked and hold up well to cooking, similar to kale. Additionally, the whole vine can be used as animal feed, unlike potato leaves, which cannot.

When allowed to mature and produce seed, the plant forms small capsules containing dark seeds. However, commercial and home-garden production is almost always by vegetative propagation using slips or vine cuttings rather than seed.

Interesting Facts

1. Sweet potatoes are not botanically related to common potatoes (Solanum tuberosum). They belong to entirely different plant families, with sweet potatoes in the Convolvulaceae (morning glory family) and regular potatoes in the Solanaceae (nightshade family), reflecting distinct evolutionary origins and growth characteristics. They differ substantially in their botanical characteristics, reproductive structures, and methods of storage organ development.
2. Although the name “yam” is commonly used for sweet potatoes in some regions, true yams belong to the Dioscoreaceae (Yam) family and are botanically distinct.
3. Sweet potato is one of the oldest cultivated crops in the Americas. Archaeological evidence indicates it was domesticated thousands of years ago in tropical regions of Central and South America. It then spread throughout the Caribbean, the Pacific Islands, Asia, and Africa, eventually reaching much of the world through human migration and trade.
4. Sweet potatoes are among the most efficient food crops in terms of energy output per unit area. Their vigorous vine growth and ability to produce substantial yields of carbohydrate-rich roots make them an important staple crop in many parts of the world.
5. The edible portion of the sweet potato plant is an enlarged storage root, a thickened root that stores nutrients, unlike potatoes, which have true tubers, which are modified stems. This key botanical distinction influences how the plant is propagated and cultivated. These storage roots accumulate carbohydrates produced through photosynthesis and serve as energy reserves for the plant. Their efficient storage capacity contributes to the crop’s high productivity and importance as a global food security crop.
6. Sweet potatoes are propagated vegetatively using “slips,” which are shoots grown from mature roots. This method ensures genetic consistency and is widely used in both commercial and home garden production systems, as seed propagation is uncommon and cannot be used to maintain cultivars.
7. Sweet potato cultivars (cultivated varieties) show remarkable colour diversity. Root flesh may be white, cream, yellow, orange, pink, or deep purple. Orange-fleshed cultivars contain exceptionally high levels of beta-carotene, while purple-fleshed cultivars are rich in anthocyanins, giving them distinctive colours and unique nutritional properties.
8. Sweet potato leaves are widely consumed as a leafy vegetable across many countries. The foliage contains substantial amounts of vitamins, minerals, chlorogenic acids, flavonoids, and other beneficial phytochemicals. In some regions, both the roots and leaves are valued as food, enhancing the crop’s overall usefulness and sustainability.
9. The crop requires a long, warm growing season, typically 90–120 days, to produce well-developed storage roots. Consistently warm soil temperatures are essential for root initiation and enlargement, making sweet potatoes particularly suited to regions with extended growing seasons.

Medicinal Properties

1. Orange-fleshed sweet potatoes contain exceptionally high levels of beta-carotene, a carotenoid that functions as a precursor to vitamin A. After consumption, beta-carotene is converted into vitamin A, which is essential for immune function, vision, epithelial tissue health, cellular differentiation, and normal growth and development throughout the body.
2. Purple-fleshed sweet potatoes are rich in anthocyanins, particularly cyanidin- and peonidin-based compounds. These pigments possess powerful antioxidant activity that helps protect cells from oxidative damage. Research has demonstrated that sweet potato anthocyanins influence pathways involved in inflammation, glucose metabolism, insulin sensitivity, and overall metabolic health.
3. Sweet potato leaves contain substantial concentrations of chlorogenic acid and related caffeoylquinic acid derivatives. These polyphenolic compounds exhibit antioxidant, anti-inflammatory, and cardioprotective activities. Studies have shown that chlorogenic acids can reduce fasting blood glucose, improve glucose tolerance, lower blood pressure, and improve endothelial function.
4. Scientific investigations have identified significant anticancer activity in sweet potato leaf extract using cell-culture and animal experiments. Bioactive compounds including chlorogenic acids, anthocyanins, flavonoids, and other phenolic constituents have demonstrated the ability to inhibit the growth and proliferation of various cancer cell lines through multiple biological mechanisms.
5. Sweet potato roots and leaves contain a diverse range of biologically active phytochemicals, including carotenoids, anthocyanins, flavonoids, phenolic acids, and caffeoylquinic acid derivatives. Collectively, these compounds have antioxidant and anti-inflammatory effects, support cellular protection mechanisms, and play important roles in maintaining metabolic and cardiovascular health.

Lush green leaves of sweet potato (Image source: Depositphotos.com)

Basic Growing Information

Sweet potatoes are a warm-season perennial crop that requires a long frost-free growing season and consistently warm temperatures to produce high yields of storage roots. Growth is most vigorous when temperatures remain between 21–29°C (70–85°F), and plants perform best when soil temperatures are above 18°C (65°F). Sweet potatoes are highly sensitive to frost and cold soils, which can severely reduce growth and root development. In regions with short growing seasons, slips are often started indoors or purchased from nurseries and transplanted outdoors after all danger of frost has passed and the soil has thoroughly warmed.

Sweet potatoes grow best in loose, fertile, well-drained soil that allows storage roots to grow freely. Soils that are too wet or poorly drained can heighten the risk of root diseases and reduce root quality, while heavy clay soils may cause misshapen roots. These clay soils can also lead to cooler soil temperatures and tend to retain more water later in the season after rains start. Maintaining consistent moisture is vital during the plant’s establishment and root growth phases, although mature plants are moderately drought-tolerant once established.

• Sun Requirements: Full sun
• Water Requirements: Medium
• Soil Types and Properties: Loose, fertile, well-drained sandy loam or loamy soil enriched with organic matter; soils should be free of compaction, stones, and excessive clay in order to encourage proper root development
• Soil pH: Tolerant of pH between 5.5–6.8, with optimum soil pH for high yields 5.8–6.0
• Pot Size for Container Growing: Minimum 45–60 cm (18–24 in) wide and 30–45 cm (12–18 in) deep

Planting

• Best Time to Plant

• Climates with freezing winters: Late spring to early summer after all danger of frost has passed and soil temperatures exceed 18°C (65°F)
• Climates with milder winters: Spring through early summer

Note: Check gardening calendars for the best planting times in your location

• Spacing: 30–45 cm (12–18 in) between plants and 90–120 cm (36–48 in) between rows
• Seed Sowing Method: Sweet potatoes are normally grown from slips, and not from seed
• Seed Sowing Depth: 0.5–1 cm (¼–½ in) deep
• Time to Harvest: 14–20 weeks from planting slips; approximately 16–22 weeks from seed sowing
• Mature Height/Spread: Approximately 20–30 cm (8–12 in) tall with vines spreading 0.9–3 m (3–10 ft) or more
• Grown From: Slips (rooted shoots), vine cuttings

Care and Maintenance

• Watering Tips: Provide consistent moisture during establishment and throughout the root enlargement period. Water deeply enough to moisten the root zone, keeping the soil evenly moist but not saturated. Reduce watering as harvest approaches to minimise root cracking and improve storage quality. Avoid prolonged waterlogging, which can promote root diseases.
• Fertilization: Incorporate (dig in) compost or well-rotted organic matter before planting. Avoid excessive nitrogen fertiliser, as it promotes vigorous vine growth at the expense of storage root development. A balanced fertiliser applied before planting, followed by moderate side-dressing during early growth if needed, generally produces the best yields and root quality.
• Pruning: Routine pruning is usually unnecessary for sweet potatoes. Excessive pruning can reduce photosynthetic capacity and lower yields. In small gardens or containers, overly long vines may be lightly trimmed to control spread and improve access, but most foliage should be retained to support storage root production.
• Support: Sweet potatoes are usually grown as ground-cover crops and do not require support. In containers, raised beds, or small gardens, vines may be trained onto trellises or supports to save space and improve air circulation. However, unsupported vines typically produce the highest yields and require less maintenance.

Growing Difficulty

• Easy to Grow

Growing Tips

• Start with healthy, vigorous slips and plant them only after the soil has fully warmed. Sweet potatoes establish slowly in cool conditions, and cold soil can delay growth for weeks. Waiting until soil temperatures consistently exceed 18°C (65°F) promotes rapid root establishment and stronger vine growth throughout the season.
• Prepare the soil deeply before planting. Sweet potatoes produce the best-shaped storage roots in loose, friable soil free of rocks, compaction, and heavy clay. Raised beds or mounded rows can improve drainage and allow roots to expand more easily, yielding larger, smoother, and more uniform harvests.
• Avoid using excessive nitrogen fertiliser as this can promote lush vine growth at the expense of storage root production. Focus on building fertile soil with compost and use balanced fertilisers rather than high-nitrogen products. The goal is to encourage root development rather than excessive foliage growth.
• Control weeds early in the season, while plants are becoming established. Young sweet potato plants are vulnerable to weed competition, which reduces access to water, nutrients, and sunlight. Once vines spread and form a dense canopy, they naturally suppress many weeds and require less maintenance.
• Harvest before the first autumn frost, and handle roots carefully when digging. Sweet potato skins are easily damaged immediately after harvest. Allowing freshly harvested roots to cure in warm, humid conditions improves flavour, enhances sweetness through starch conversion, and significantly extends storage life.

Companion Plants

• Good companion plants include: Bush beans, pole beans, peas, sweet alyssum, marigolds, nasturtiums, dill, thyme, oregano, yarrow, garlic, onions, chives, spring onions, and radishes.
• Avoid planting near: Pumpkin, squash, zucchini, cucumbers, melons, and other vigorous cucurbits that compete heavily for space, water, nutrients, and sunlight. Large sprawling crops can overwhelm sweet potato vines and make maintenance and harvesting more difficult.

Common Pests and Diseases

Pests: Sweet potato weevil, wireworms, white grubs, flea beetles, aphids, whiteflies, sweet potato hornworm, cutworms, armyworms, root-knot nematodes, cucumber beetles, and spider mites.

• Sweet Potato Weevil (Cylas spp.) – The most destructive sweet potato pest worldwide. Adults feed on vines and roots, while larvae tunnel through storage roots, causing extensive damage and rendering roots unmarketable. Infested roots often develop bitter flavours and secondary rots.
  • Management: Plant certified pest-free slips, rotate crops, destroy crop residues after harvest, avoid planting near infested fields, maintain good field sanitation, and promptly harvest mature roots. Monitor crops regularly and remove infested plants when detected.
• Wireworms (Click Beetle Larvae) – Soil-dwelling larvae that bore into developing roots, creating tunnels and feeding scars that reduce quality and provide entry points for disease organisms.
  • Management: Rotate crops, remove grassy weeds before planting, cultivate soil prior to planting to expose larvae to predators, and avoid planting sweet potatoes immediately after pasture or grass crops where wireworm populations may be high.
• White Grubs (Scarab Beetle Larvae) – Larvae feed on roots below ground, causing holes, scars, and reduced root quality. Severe infestations can weaken plants and reduce yields.
  • Management: Practice crop rotation, remove turf and grassy weeds before planting, cultivate soil before planting to expose grubs, and encourage natural predators such as birds where practical.
• Flea Beetles – Small jumping beetles that chew numerous small holes in leaves. Heavy infestations can reduce photosynthetic area and weaken young plants.
  • Management: Maintain vigorous plant growth, remove weeds that may serve as alternate hosts, use floating row covers during establishment if necessary, and monitor regularly for early infestations.
• Aphids – Small sap-feeding insects that cluster on young growth and undersides of leaves. They may transmit plant viruses and cause distorted foliage.
  • Management: Encourage beneficial insects such as ladybirds and lacewings, avoid excessive nitrogen fertilisation which produces soft, sappy growth which attracts them, remove heavily infested foliage when practical, and use insecticidal soaps if required.
• Whiteflies – Tiny sap-feeding insects that congregate on leaf undersides. They weaken plants through feeding and may contribute to disease transmission.
  • Management: Remove weeds that act as hosts, improve air circulation, encourage natural predators, monitor populations regularly, and use insecticidal soaps or horticultural oils where appropriate.
• Sweet Potato Hornworm (Agrius cingulata) – Large caterpillars capable of rapidly defoliating vines when present in high numbers.
  • Management: Hand-pick caterpillars when practical, encourage natural predators, inspect foliage regularly, and remove infestations before extensive defoliation occurs.
• Cutworms and Armyworms – Caterpillars that feed on stems, leaves, and young plants. Cutworms may sever seedlings at ground level, while armyworms consume foliage.
  • Management: Remove weeds before planting, cultivate soil to expose larvae, monitor crops regularly, and hand-remove caterpillars when infestations are small.
• Root-Knot Nematodes (Meloidogyne spp.) – Microscopic roundworms that attack roots, causing galls, reduced plant vigour, poor yields, and misshapen storage roots.
  • Management: Rotate with non-host crops, use resistant cultivars where available, maintain healthy soil, and avoid moving contaminated soil between garden beds.

Diseases: Black rot, Fusarium wilt, soil rot, stem rot, scurf, root-knot nematode-associated disorders, bacterial soft rot, Cercospora leaf spot, Alternaria leaf blight, and viral diseases.

• Black Rot (Ceratocystis fimbriata) – One of the most serious sweet potato diseases. It causes dark, sunken lesions on roots and can affect slips, stems, and stored roots.
  • Management: Use certified disease-free planting material, rotate crops, remove infected roots and plant debris, disinfect storage facilities, and avoid wounding roots during harvest and handling.
• Fusarium Wilt (Fusarium oxysporum f. sp. batatas) – A soil-borne fungal disease that causes yellowing, wilting, stunted growth, and vascular discoloration.
  • Management: Plant disease-free slips, rotate crops for several years, avoid poorly drained soils, and remove infected plants to reduce disease spread.
• Soil Rot (Streptomyces ipomoeae) – Causes pits, cracks, and rough lesions on storage roots, reducing quality and marketability.
  • Management: Maintain soil pH below about 5.5–5.8 where practical, rotate crops, use resistant cultivars when available, and avoid planting in fields with a history of severe infection.
• Stem Rot (Fusarium solani) – Causes stem lesions, wilting, root decay, and plant decline. It may also affect harvested roots during storage.
  • Management: Use healthy planting material, avoid injuries to roots and stems, practice crop rotation, and maintain good drainage.
• Scurf (Monilochaetes infuscans) – Produces dark brown to black superficial discoloration on root surfaces. While usually not affecting eating quality, it greatly reduces appearance and storage value.
  • Management: Plant disease-free slips, rotate crops, clean storage areas, and avoid storing infected roots with healthy produce.
• Bacterial Soft Rot (Dickeya spp. and related bacteria) – Causes soft, watery decay of roots, especially during storage or after injury.
  • Management: Handle roots carefully to minimise wounds, cure roots properly after harvest, maintain good storage conditions, and remove infected roots immediately.
• Cercospora Leaf Spot (Cercospora spp.) – A fungal leaf disease producing small spots that may enlarge and reduce photosynthetic capacity under severe infection.
  • Management: Improve air circulation, avoid overhead irrigation when possible, remove infected plant debris, and rotate crops.
• Alternaria Leaf Blight (Alternaria spp.) – Causes brown leaf lesions that can expand and lead to premature leaf loss during prolonged humid conditions.
  • Management: Maintain plant spacing for good airflow, avoid prolonged leaf wetness, remove infected foliage, and practice crop rotation.
• Viral Diseases (Sweet Potato Virus Complexes) – Various viruses can cause mottling, leaf distortion, stunting, reduced vigour, and significant yield losses.
  • Management: Use certified virus-free planting material, control aphid and whitefly populations, remove infected plants when detected, and avoid propagating slips from diseased stock plants.

Harvesting

• Harvest Time: Sweet potatoes are typically ready for harvest 14–20 weeks after planting slips, depending on the cultivar and growing conditions. Harvest when the roots have reached a usable size and before the first autumn frost, as cold temperatures can damage both roots and vines. Many gardeners begin checking root size near the end of the recommended growing period by carefully digging beside a plant. Storage roots generally continue to increase in size until harvest, provided warm temperatures persist.
• Harvesting Tips: Harvest on a dry day when the soil is relatively loose. Cut back some of the vines if necessary to improve access, then use a garden fork or spade to loosen the soil well away from the base of the plant before lifting the roots. Sweet potato skins are delicate immediately after harvest and can be easily bruised, punctured, or scraped. Handle roots carefully, avoid dropping them, and remove excess soil gently without washing if the roots will be stored.
• Storage: Freshly harvested sweet potatoes should be cured before long-term storage. Cure roots for approximately 7–14 days at 27–32°C (80–90°F) with high relative humidity of around 85–90%. This process allows minor wounds to heal, improves flavour, and converts some starches into sugars. After curing, store roots in a cool, dry, well-ventilated location at approximately 13–16°C (55–60°F). Avoid refrigeration, as temperatures below about 10°C (50°F) can cause chilling injury and reduce storage quality. Properly cured and stored sweet potatoes can remain in good condition for several months.

Propagation

• Produce New Plants From: Slips (rooted shoots) and stem cuttings (vine cuttings). Seeds are not used, they are primarily used for breeding new varieties rather than normal crop production.

Propagation From Slips (Most Common Method)

1. Select healthy, disease-free sweet potato roots from the previous harvest or purchase certified disease-free roots.
2. Place the roots horizontally or partially submerged in a container filled with water or moist growing medium approximately 6–8 weeks before the intended planting date.
3. Keep the roots in a warm location with temperatures between 24–29°C (75–85°F). Warm conditions encourage rapid sprout development.
4. Allow shoots, known as slips, to emerge from the root. Several slips may develop from a single sweet potato over a period of weeks.
5. When slips reach approximately 15–25 cm (6–10 in) in length, gently twist or cut them from the parent root.
6. Place the detached slips in water for several days until roots develop, or plant them directly into moist potting mix where they will quickly establish roots.
7. Harden off the rooted slips by gradually exposing them to outdoor conditions over 7–10 days.
8. Transplant the slips into the garden after all danger of frost has passed and soil temperatures have warmed above 18°C (65°F).

Propagation From Stem Cuttings (Vine Cuttings)

1. Select healthy, vigorous vines from established sweet potato plants.
2. Cut sections approximately 20–30 cm (8–12 in) long using clean, sharp tools.
3. Remove leaves from the lower half of each cutting to expose the nodes where roots will form.
4. Place the cuttings in water or moist propagation medium and maintain warm temperatures.
5. Roots typically develop from the nodes within several days to two weeks.
6. Once a healthy root system has formed, transplant the rooted cuttings into prepared garden beds or containers.

Sweet potato flowers can produce botanical seeds through sexual reproduction, and plant breeders use these seeds to develop new cultivars (cultivated varieties). However, sweet potatoes are highly heterozygous and generally do not grow true-to-type from seed. Seedlings may differ substantially from the parent plant in root shape, colour, yield, flavour, disease resistance, and maturity. For this reason, commercial growers and home gardeners propagate sweet potatoes vegetatively using slips and vine cuttings to preserve cultivar characteristics.

Culinary Uses

Sweet potatoes are one of the world’s most versatile root vegetables and are used in an enormous variety of sweet and savoury dishes. The storage roots can be baked whole, roasted, steamed, boiled, mashed, fried, grilled, or incorporated into soups, stews, curries, casseroles, and vegetable bakes. Roasting is particularly popular because it enhances the natural sweetness of the roots as some of the starches are converted into sugars during cooking.

In many countries, sweet potatoes are mashed and served as a side dish, often with butter, herbs, spices, or other vegetables. They are also widely used to make chips, wedges, fries, croquettes, and patties. The roots can be pureed and added to breads, muffins, cakes, pies, pancakes, and desserts, where they contribute moisture, colour, flavour, and nutritional value.

Orange-fleshed varieties are especially valued for their rich colour and sweet flavour, while purple-fleshed cultivars are increasingly used in specialty foods, desserts, baked goods, and natural food colouring applications due to their vibrant pigmentation. In some cultures, sweet potatoes are dried, milled into flour, or processed into noodles, starch, and other food products.

The young leaves and tender shoot tips are also edible and are commonly consumed as leafy greens in many parts of Asia, Africa, and the Pacific. They can be steamed, stir-fried, sautéed, added to soups, or cooked similarly to spinach. The foliage provides an additional harvest from the same plant and is rich in vitamins, minerals, and beneficial phytochemicals.

In conclusion, sweet potatoes are a productive, nutritious, and rewarding crop that can be grown successfully in home gardens wherever a sufficiently long warm season is available. With proper soil preparation, warm growing conditions, and basic care, gardeners can enjoy abundant harvests of delicious storage roots and edible foliage. Whether grown for food security, culinary versatility, nutritional value, or simply the satisfaction of harvesting a home-grown crop, sweet potatoes are an excellent addition to the vegetable garden.

With proper care and attention to planting and harvesting times, they can be a rewarding addition to any garden.

References

• Growing Guide: Sweetpotato Production Practices. (n.d.). Vegetable Research and Extension |  Washington State University. https://vegetables.wsu.edu/sweetpotato-production-practices/
• Growing sweet potatoes in a home garden. (n.d.). University of Maryland Extension. https://extension.umd.edu/resource/growing-sweet-potatoes-home-garden/
• How to grow sweet potatoes – MSU extension. (n.d.). MSU Extension. https://www.canr.msu.edu/resources/how_to_grow_sweet_potatoes
• James, S. (2026, March 31). Sweetpotato | Home & Garden Information Center. Home & Garden Information Center. https://hgic.clemson.edu/factsheet/sweet-potato/
• Sweet potato | Diseases and Pests, Description, Uses, Propagation. (n.d.). https://plantvillage.psu.edu/topics/sweet-potato/infos
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• Utah State University. (2023, December 14). How to grow sweet potatoes in your garden. USU. https://extension.usu.edu/yardandgarden/research/sweet-potatoes-in-the-garden
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• Nguyen, H. C., Chen, C. C., Lin, K. H., Chao, P. Y., Lin, H. H., & Huang, M. Y. (2021). Bioactive Compounds, Antioxidants, and Health Benefits of Sweet Potato Leaves. Molecules, 26(7), 1820.
• Chiu, C. H., Lin, K. H., Lin, H. H., Chu, W. X., Lai, Y. C., & Chao, P. Y. (2022). Analysis of Chlorogenic Acid in Sweet Potato Leaf Extracts. Plants, 11(15), 2063.
• Maqsood, S., N. S. Basher, M. T. Arshad, et al. 2025. “Anthocyanins From Sweet Potatoes (Ipomoea batatas): Bioavailability, Mechanisms of Action, and Therapeutic Potential in Diabetes and Metabolic Disorders.” Food Science & Nutrition13, no. 9: e70895. https://doi.org/10.1002/fsn3.70895.