Tetragonia tetragonioides

Last updated

Tetragonia tetragonioides
Tetragonia tetragonioides.jpg
Tetragonia tetragonioides, growing in sand in its native habitat in Japan
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Aizoaceae
Genus: Tetragonia
Species:
T. tetragonioides
Binomial name
Tetragonia tetragonioides
(Pall.) Kuntze
Synonyms

Tetragonia expansa

New Zealand spinach, cooked, boiled, drained, without salt
Nutritional value per 100 g (3.5 oz)
Energy 51 kJ (12 kcal)
2.13 g
Sugars 0.25 g
Dietary fiber 1.4 g
Fat
0.17 g
1.3 g
Vitamins Quantity
%DV
Vitamin A 3622 IU
Thiamine (B1)
3%
0.03 mg
Riboflavin (B2)
9%
0.107 mg
Niacin (B3)
3%
0.39 mg
Pantothenic acid (B5)
5%
0.256 mg
Vitamin B6
18%
0.237 mg
Vitamin C
19%
16 mg
Vitamin E
8%
1.23 mg
Vitamin K
278%
292 μg
Minerals Quantity
%DV
Calcium
5%
48 mg
Iron
5%
0.66 mg
Magnesium
9%
32 mg
Manganese
25%
0.526 mg
Phosphorus
3%
22 mg
Potassium
2%
102 mg
Sodium
7%
107 mg
Zinc
3%
0.31 mg
Other constituentsQuantity
Water94.8 g

Percentages are roughly approximated using US recommendations for adults.
Source: USDA FoodData Central

Tetragonia tetragonioides, commonly called New Zealand spinach, [1] [2] Warrigal greens and other local names, is a flowering plant in the fig-marigold family (Aizoaceae). It is often cultivated as a leafy vegetable.

Contents

It is a widespread species, native to eastern Asia, Australia, and New Zealand. It has been introduced and is an invasive species in many parts of Africa, Europe, North America, and South America. [3] Its natural habitat is sandy shorelines and bluffs, often in disturbed areas. [4] It is a halophyte and grows well in saline ground.

Description

The plant has a trailing habit, and will form a thick carpet on the ground or climb through other vegetation and hang downwards. It can have erect growth when young. [5] The leaves of the plant are 3–15 cm long, triangular in shape, and bright green. The leaves are thick, and covered with tiny papillae that look like waterdrops on the top and bottom of the leaves. The flowers of the plant are yellow, [6] and the fruit is a small, hard capsule covered with small horns.[ citation needed ]

Taxonomy

Prussian naturalist Peter Pallas described the species as Demidovia tetragonoides in 1781. [7] German botanist Otto Kuntze placed the species in the genus Tetragonia in his 1891 work Revisio Generum Plantarum , resulting in its current binomial name. [8]

This widely distributed plant has many common names, depending on its location. In addition to the name New Zealand spinach, it is also known as Botany Bay spinach, Cook's cabbage, kōkihi (in Māori), sea spinach, and tetragon. Its Australian names of Warrigal Greens and Warrigal Cabbage [6] come from the local use of warrigal to describe plants that are wild (not farmed originally). [9]

Cultivation

It is grown for the edible leaves, and can be used as food or an ornamental plant for ground cover. It can be an annual or perennial. [3] As some of its names signify, it has similar flavour and texture properties to spinach, and is cooked like spinach. Like spinach, it contains oxalates; its medium to low levels of oxalates need to be removed by blanching the leaves in hot water [10] for one minute, then rinsing in cold water before cooking. It thrives in hot weather, and is considered an heirloom vegetable. Few insects consume it, and even slugs and snails do not seem to feed on it.[ citation needed ]

The thick, irregularly-shaped seeds should be planted just after the last spring frost. Before planting, the seeds should be soaked for 12 hours in cold water, or 3 hours in warm water. Seeds should be planted 5–10 mm (0.2–0.4 in) deep, and spaced 15–30 cm (5.9–11.8 in) apart. The seedlings will emerge in 10–20 days, and it will continue to produce greens through the summer. Mature plant will self-seed. Seeds will overwinter up to USDA zone 5.[ citation needed ]

As food

The species, rarely used by indigenous people as a leaf vegetable, was first documented by Captain Cook. It was immediately picked, cooked, and pickled to help fight scurvy, and taken with the crew of the Endeavour. [6] It spread when the explorer and botanist Joseph Banks took seeds back to Kew Gardens during the latter half of the 18th century. [11] For two centuries, T. tetragonioides was the only cultivated vegetable to have originated from Australia and New Zealand.[ citation needed ]

There are some indications that Māori did eat kōkihi perhaps more regularly. According to Murdoch Riley, "to counteract the bitterness of the older leaves of this herb, the Māori boiled it with the roots of the convolvulus (pōhue)", in reference to species of Convolvulaceae now classified as Calystegia . [12] [13] [14] [15] The tips of the spinach can be pinched off and eaten raw or cooked. [16]

Nutrition

When consumed after boiling, New Zealand spinach is 95% water, 2% carbohydrates, 1% protein, and contains negligible fat, while supplying only 12 calories (table). In a 100 gram reference amount, the spinach is particularly rich in vitamin K, providing 278% of the Daily Value (DV). It also contains appreciable amounts of vitamin B6, vitamin C, and manganese (18–25% DV).[ citation needed ]

Related Research Articles

<span class="mw-page-title-main">Spinach</span> Species of flowering plant

Spinach is a leafy green flowering plant native to central and Western Asia. It is of the order Caryophyllales, family Amaranthaceae, subfamily Chenopodioideae. Its leaves are a common edible vegetable consumed either fresh, or after storage using preservation techniques by canning, freezing, or dehydration. It may be eaten cooked or raw, and the taste differs considerably; the high oxalate content may be reduced by steaming.

<i>Beta vulgaris</i> Species of flowering plant

Beta vulgaris (beet) is a species of flowering plant in the subfamily Betoideae of the family Amaranthaceae. Economically, it is the most important crop of the large order Caryophyllales. It has several cultivar groups: the sugar beet, of greatest importance to produce table sugar; the root vegetable known as the beetroot or garden beet; the leaf vegetable known as chard or spinach beet or silverbeet; and mangelwurzel, which is a fodder crop. Three subspecies are typically recognised. All cultivars, despite their quite different morphologies, fall into the subspecies Beta vulgaris subsp. vulgaris. The wild ancestor of the cultivated beets is the sea beet.

<span class="mw-page-title-main">Chard</span> Green leafy vegetable

Chard or Swiss chard is a green leafy vegetable. In the cultivars of the Flavescens Group, the leaf stalks are large and often prepared separately from the leaf blade; the Cicla Group is the leafy spinach beet. The leaf blade can be green or reddish; the leaf stalks are usually white, yellow or red.

<i>Chenopodium album</i> Species of flowering plant in the goosefoot family Chenopodiaceae

Chenopodium album is a fast-growing annual plant in the genus Chenopodium. Though cultivated in some regions, the plant is elsewhere considered a weed. Common names include lamb's quarters, melde, goosefoot, wild spinach and fat-hen, though the latter two are also applied to other species of the genus Chenopodium, for which reason it is often distinguished as white goosefoot. Chenopodium album is extensively cultivated and consumed in Northern India, and Nepal as a food crop known as bathua.

<i>Portulaca oleracea</i> Annual succulent in the family Portulacaceae

Portulaca oleracea is an annual succulent in the family Portulacaceae.

<i>Tetragonia</i> Genus of flowering plants

Tetragonia is a genus of about 85 species of flowering plants in the family Aizoaceae, native to temperate and subtropical regions mostly of the Southern Hemisphere, in New Zealand, Australia, southern Africa and South America.

<i>Barbarea verna</i> Species of plant in the family Brassicaceae

Barbarea verna is a biennial herb in the family Brassicaceae. Common names include land cress, American cress, bank cress, black wood cress, Belle Isle cress, Bermuda cress, poor man's cabbage, early yellowrocket, early wintercress, scurvy cress, creasy greens, and upland cress. It is native to southern Europe and western Asia, and naturalized elsewhere It has been cultivated as a leaf vegetable in England since the 17th century. As it requires less water than watercress, it is easier to cultivate.

<span class="mw-page-title-main">Leaf vegetable</span> Plant leaves eaten as a vegetable

Leaf vegetables, also called leafy greens, pot herbs, vegetable greens, or simply greens, are plant leaves eaten as a vegetable, sometimes accompanied by tender petioles and shoots. Leaf vegetables eaten raw in a salad can be called salad greens.

<i>Cnidoscolus aconitifolius</i> Species of tree

Cnidoscolus aconitifolius, commonly known as chaya, tree spinach, or spinach tree, is a large, fast-growing and leafy perennial shrub that is believed to have originated in the Yucatán Peninsula of Mexico. The specific epithet, aconitifolius, means "Aconitum-like leaves". It has succulent stems that exude a milky sap when cut.

<i>Moringa oleifera</i> Species of flowering tree

Moringa oleifera is a fast-growing, drought-resistant tree of the family Moringaceae, native to the Indian subcontinent and used extensively in South and Southeast Asia. Common names include moringa, drumstick tree, horseradish tree, or malunggay.

<i>Banksia grandis</i> Species of tree in Western Australia

Banksia grandis, commonly known as bull banksia or giant banksia, is a species of common and distinctive tree in the south-west of Western Australia. The Noongar peoples know the tree as beera, biara, boongura, gwangia, pira or peera. It has a fire-resistant main stem with thick bark, pinnatisect leaves with triangular side-lobes, pale yellow flowers and elliptical follicles in a large cone.

<i>Banksia baxteri</i> Species of shrub in the family Proteaceae native to Western Australia

Banksia baxteri, commonly known as Baxter's banksia or bird's nest banksia, is a species of shrub that is endemic to Western Australia. It has greyish brown bark, hairy stems, deeply serrated leaves with triangular lobes and lemon-yellow flowers in an oval flower spike that grows on the end of branches.

<i>Isopogon anethifolius</i> Shrub in the family Proteaceae

Isopogon anethifolius, commonly known as narrow-leaf drumsticks or narrow-leafed drumsticks, is a shrub in the family Proteaceae. The species is found only in coastal areas near Sydney in New South Wales, and to the immediate west. It occurs naturally in woodland, open forest and heathland on sandstone soils. An upright shrub, it can reach to 3 m (9.8 ft) in height, with terete leaves that are divided and narrow. The yellow flowers appear in the Spring, from September to December, and are prominently displayed. They are followed by round grey cones, which give the plant its common name of drumsticks. The small hairy seeds are found in the old flower parts.

<i>Sonchus oleraceus</i> Species of flowering plant in the family Asteraceae

Sonchus oleraceus is a species of flowering plant in the tribe Cichorieae of the family Asteraceae, native to Europe and Western Asia. It has many common names including common sowthistle, sow thistle, smooth sow thistle, annual sow thistle, hare's colwort, hare's thistle, milky tassel, milk thistle. and soft thistle.

<i>Melaleuca trichophylla</i> Species of shrub

Melaleuca trichophylla is a shrub in the myrtle family, Myrtaceae, endemic to the south-west of Western Australia. Its pink or purple flowers appear from August to December in its native range. It has long been cultivated.

<i>Arceuthobium douglasii</i> Species of dwarf mistletoe

Arceuthobium douglasii is a species of dwarf mistletoe known as Douglas fir dwarf mistletoe. It is native to western North America from British Columbia to Texas to California, where it lives in forest and woodland as a parasite. It is found mostly on Douglas fir trees, but occasionally on fir, as well.

<i>Tetragonia implexicoma</i> Species of plant

Tetragonia implexicoma, commonly known as bower spinach, is a species of plant in the Aizoaceae, or ice-plant family. A similar species is Tetragonia tetragonioides, however this species has larger leaves and a shorter flowering time.

Schoenoplectus etuberculatus, common name Canby's bulrush, is a plant species native to the United States. It is reported from every state on the Gulf and Atlantic coasts from eastern Texas to Delaware, plus isolated populations in Rhode Island and Missouri. It is an emergent plant growing in ponds, marshes, stream banks, etc., including in brackish water along the coast.

Tetragonia moorei is a member of the genus Tetragonia and is endemic to Australia.

<i>Isopogon longifolius</i> Species of shrub in the family Proteaceae endemic to the southwest of Western Australia

Isopogon longifolius is a species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a shrub with simple, linear, or deeply divided leaves and sessile, spherical heads of silky-hairy, yellow flowers and spherical to oval cone.

References

  1. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  2. USDA, NRCS (n.d.). "Tetragonia tetragonioides". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 19 January 2018.
  3. 1 2 "Tetragonia tetragonioides". Invasive Species Compendium.
  4. Tetragonia tetragonioides Flora of North America
  5. Tetragonia tetragonioides Flora of China
  6. 1 2 3 "Tetragonia tetragonioides". The Royal Botanic Gardens and Domain Trust. Archived from the original on 9 February 2014. Retrieved 10 February 2014.
  7. Pallas, Peter Simon (1781). Enumeratio plantarum quae in hortoi viri illustris atque escell. Dni. Procopi a Demidof (in Russian). Saint Petersburg: Saint Petersburg Academy of Sciences. pp. 151–157.
  8. Kuntze, Otto (1891). Revisio Generum Plantarum. Vol. v.2. Leipzig, Germany: A. Felix. p. 264.
  9. The New Oxford American Dictionary (3rd ed.). 2012. adjective (of a plant) not cultivated: warrigal melons.
  10. "Hungry? Try some bush tucker" (movie). The Sydney Morning Herald. 2011-06-28. Archived from the original on 2011-06-29. Retrieved 2011-06-28.
  11. Low, T., Wild Food Plants of Australia, Angus & Robertson, 1991, ISBN   0-207-16930-6
  12. Riley, Murdoch (1994). Maori Healing and Herbal. Paraparaumu, New Zealand: Viking Sevenseas N.Z. Ltd. pp. 7–10. ISBN   0854670955.
  13. "Māori Healing and Herbal - New Zealand Ethnobotanical Sourcebook". Viking Sevenseas NZ Ltd. 1994. p. 221.
  14. "pōhue - Māori Dictionary". maoridictionary.co.nz. Retrieved 2021-05-09.
  15. "Māori Plant Use Database Plant Use Details of Calystegia sepium". maoriplantuse.landcareresearch.co.nz. Retrieved 2021-05-09.
  16. Nyerges, Christopher (2016). Foraging Wild Edible Plants of North America: More than 150 Delicious Recipes Using Nature's Edibles. Rowman & Littlefield. p. 135. ISBN   978-1-4930-1499-6.