Health Benefits

Traditional uses and benefits of Todok

Codonopsis lanceolata, popularly known as Todok, deodeok or lance asiabell, is a flowering plant belonging to Campanulaceae family. The plant is native to northeast China (Anhui, Fujian, Hebei, Henan, Hubei, Hunan, Jiangsu, Shandong, Shanxi and Zhejiang), Eastern Russia, Korea and Japan. It is a variety of bonnet bellflower. Some of the popular common names of the plants are Bonnet Bell Flower, Lance Asia Bell, Todok and deodeok. Genus name comes from the Greek words kodon meaning a bell and opsis meaning resembling for the shape of the corolla. Specific epithet means lance-shaped leaves. Plants in the genus Codonopsis are occasionally commonly called bonnet bellflower. The plant is harvested from the wild for local use as a food and medicine. It is sometimes cultivated as a food crop, and the roots are commonly sold for food in local markets in Korea. The plant is grown as an ornamental in gardens.

Todok Facts

Todok Quick Facts
Name: Todok
Scientific Name: Codonopsis lanceolata
Origin Northeast China (Anhui, Fujian, Hebei, Henan, Hubei, Hunan, Jiangsu, Shandong, Shanxi, Zhejiang), Eastern Russia, Korea and Japan
Colors Brown
Shapes Cone-shaped capsule that is hemispherical at base. It is 1.6-3.5 cm in diameter with numerous seeds
Health benefits Support for edema, lung abscess, malignant tumor, peptic ulcer, kidney stones, asthma, convulsions, chillness and fever, tonsillitis, pharyngitis, cough, rheumatism, menstrual disturbance and bruises
Name Todok
Scientific Name Codonopsis lanceolata
Native Northeast China (Anhui, Fujian, Hebei, Henan, Hubei, Hunan, Jiangsu, Shandong, Shanxi, Zhejiang), Eastern Russia, Korea and Japan
Common Names Bonnet Bell Flower, Lance Asia Bell, Todok, deodeok
Name in Other Languages Azerbaijani: Nəştərvari kodonopsis
Chinese : Shen hai lou, Yang Ru (羊乳)
English: Bonnet bellflower, deodeok, lance asiabell        
Estonian : Süstjas väänkellukas
French: Codonopsis, dang shen
German: Kletternde Tigerglocke
Japanese : Tsuru-ninjin (ツルニンジン)
Korean : Deodeok (더덕)
Russian: Kodonopsis lantsetnyy (кодонопсис ланцетный)
Swedish : Prickig porslinsklocka
Plant Growth Habit Dicotyledonous perennial, herbaceous, twining vine
Growing Climates Thin thickets on hill and mountain slopes, forest margins, shrub lands, broad-leaved forests, subalpine or mountain forest, moist places in woods in low mountains and hills, edges of moist forests
Soil Well-drained sandy to loamy, acid to near neutral soils (pH 4.8–6.4) in full sun or partial shade but is frost intolerant
Plant Size Up to 1.5–2 m in length
Root Tap root thickened, fusiform, 10–20 cm long, 1–4 cm in diameter
Stem Branched stems are 100 cm or longer, yellow-green but with purplish shade, scrambling over the ground and twining into the surrounding vegetation for support
Leaf Small, alternate on the long main stem, two to four opposite or in a whorl towards the apex of branches. Leaf lamina is rhombic-ovate or narrowly ovate to elliptic, 3–10 cm long and 1.3–4.5 cm wide, apex acute or obtuse, base cuneate, entire or very remotely serrate; petiole 1–5 mm long
Flowering season August to September
Flower Solitary or in pairs, terminal on branches. Pedicels are 1–9 cm long. Calyx tube is about 1 mm long, adnate to middle of ovary, with five ovate–triangular lobes, 1.3–3 cm long. The corolla is broadly campanulate (bell shaped), 2–4 cm long and 2–3.5 in diameter, five deltoid lobes, greenish yellow outside, dark purple patches or stripes inside
Fruit Shape & Size Cone-shaped capsule that is hemispherical at base. It is 1.6-3.5 cm in diameter with numerous seeds
Fruit Color Brown
Seed Seeds are winged, brown and oblong or ellipsoid shaped
Propagation By seed
Season September to October
Other Facts
  • Besides being eaten, deodeok is widely used as natural herbal medicine in Korea.
  • Slugs and snails eat young shoots.

Plant Description

Todok is a dicotyledonous perennial, herbaceous, twining vine growing from thickened, spindle-shaped roots. It is a hairless vine or occasionally sparsely hairy on stems and leaves. Roots are usually fusiform-thickened, 10-20 cm long and 1-6 cm wide. The plant normally grows up to 1.5–2 m tall and dies back to the ground each winter. The branched stems are 100 cm or longer, yellow-green but with purplish shade, scrambling over the ground and twining into the surrounding vegetation for support. The plant is found growing in thin thickets on hill and mountain slopes, forest margins, shrub lands, broad-leaved forests, subalpine or mountain forest, moist places in woods in low mountains and hills, edges of moist forests. The plant is found growing in well-drained sandy to loamy, acid to near neutral soils (pH 4.8–6.4) in full sun or partial shade but is frost intolerant.

Leaves

Leaves are small, alternate on the long main stem, two to four opposite or in a whorl towards the apex of branches. Leaf lamina is rhombic-ovate or narrowly ovate to elliptic, 3–10 cm long and 1.3–4.5 cm wide, apex acute or obtuse, base cuneate, entire or very remotely serrate; petiole 1–5 mm long. Usually leaves are 2-4-fascicled on top of branchlets, sub-opposite or verticillate. Leaves are green on the upper surface and whitish on the lower surface.

Flowers

Flowers are solitary or in pairs, terminal on branches. Pedicels are 1–9 cm long. Calyx tube is about 1 mm long, adnate to middle of ovary, with five ovate–triangular lobes, 1.3–3 cm long. The corolla is broadly campanulate (bell shaped), 2–4 cm long and 2–3.5 in diameter, five deltoid lobes, greenish yellow outside, dark purple patches or stripes inside. Stamens 5; ovary is half-inferior. Flowering normally takes place in between August to September. The flowers are hermaphroditic and are pollinated by bees and wasps.

Fruits

Fertile flowers are followed by cone-shaped capsule that is hemispherical at base. It is 1.6-3.5 cm in diameter with numerous seeds. Seeds are winged, brown and oblong or ellipsoid shaped. The seeds ripen from September to October.

Traditional uses and benefits of Todok

Culinary Uses

Recipe

Grilled deodeok (Todok)

Ingredients

For the sauce

Directions

  1. Lightly rinse your deodeok to remove excess dirt.
  2. After rinsing, pick up a root, cut off the top, and peel off the skin in horizontal strips by making a small cut and tugging sideways.
  3. Take a peeled root and wrap in one layer of plastic wrap.
  4. Gently pound the root with a rolling pin turning it evenly (don’t pound so hard that the root splits).
  5. Unwrap and make a butterfly cut lengthwise down the side, folding it open so the inside of the root faces down.
  6. Cover again with the plastic wrap and pound until tender but not broken.
  7. If you’re planning to grill your deodeok up to a day after tenderizing, cover with a damp paper towel and place in an airtight container in the fridge.
  8. Mix your sauce ingredients thoroughly in a bowl.
  9. Place your pounded deodeok flat on a sheet pan or plate and brush the gochujang sauce generously over the roots, flipping them to coat each side evenly.
  10. Coat the bottom of your pan with equal parts chamgireum and vegetable oil and heat your frying pan on medium. Reserve enough oil for each batch of deodeok but don’t be stingy.
  11. It’s time to cook the deodeok! Place several pieces of deodeok root in your pan and cook each side until the sauce turns from red to orange and the fibers become tender (around 2–3 minutes per side). Don’t flip constantly; let each side cook fully.
  12. Arrange your deodeok on a platter and finish with minced pine nuts.

References:

https://pfaf.org/user/plant.aspx?latinname=Codonopsis+lanceolata

https://www.cabi.org/isc/datasheet/70207660#toidentity

http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=278856

https://gd.eppo.int/taxon/CDWLA

https://www.flowersofindia.net/catalog/slides/Bonnet%20Bellflower.html

http://www.theplantlist.org/tpl1.1/record/kew-367827

https://en.wikipedia.org/wiki/Codonopsis_lanceolata

https://davesgarden.com/guides/pf/go/97933/

http://temperate.theferns.info/plant/Codonopsis+lanceolata

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