Oxalis deppei

Lodd.

Deppe's wood-sorrel, Iron cross plant

OxalidaceaeLeavesRootsPotential hazards — see below
Caution — Parts of this plant may be toxic or require specific preparation. Verify with multiple sources before consuming.
Oxalis deppei
iNaturalist · cc-by-nc
(c) Gustavo A. Martínez Segundo, some rights reserved (CC BY-NC)
Oxalis deppei
iNaturalist · cc-by-nc
(c) mvz-juangonzalezromero, some rights reserved (CC BY-NC)
Oxalis deppei
iNaturalist · cc-by-nc
(c) mvz-juangonzalezromero, some rights reserved (CC BY-NC)

What to Eat

Edible parts: Tubers, Root, Leaves

The leaves and flowers can be eaten raw or cooked, with a delicious lemony flavour. The leaves are tender and relatively free of fibres even as they mature, and both leaves and flowers make a refreshing, thirst-quenching snack in the garden and an excellent flavouring in salads. Leaves are available from June to October and flowers from July to October, or later in mild autumns. Use in moderation due to oxalic acid content. The roots can be eaten raw or cooked — they grow up to 10cm long and 3cm wide at the top, and are tender and juicy, though usually rather insipid. Occasionally a root will have a pleasant acid flavour, though the cause of this variation is not yet established.

Known Hazards

The leaves contain oxalic acid, which gives them their sharp flavour. Perfectly all right in small quantities, the leaves should not be eaten in large amounts since oxalic acid can bind up the body's supply of calcium leading to nutritional deficiency. The quantity of oxalic acid will be reduced if the leaves are cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition.

Where to Find It

In the tropics it grows in mountains at about 1,600 m altitude.

Asia, Belgium, Central America, Europe, France, Indonesia, Mexico, North America, SE Asia,

Countries: Andorra, United Arab Emirates, Afghanistan, Antigua & Barbuda, Albania, Armenia, Austria, Azerbaijan, Bosnia & Herzegovina, Barbados, Bangladesh, Belgium, Bulgaria, Bahrain, Brunei, Bahamas, Bhutan, Belarus, Belize, Canada, Switzerland, China, Costa Rica, Cuba, Cyprus, Czechia, Germany, Denmark, Dominica, Dominican Republic, Estonia, Spain, Finland, France, United Kingdom, Grenada, Georgia, Greece, Guatemala, Honduras, Croatia, Haiti, Hungary, Indonesia, Ireland, Israel, India, Iraq, Iran, Iceland, Italy, Jamaica, Jordan, Japan, Kyrgyzstan, Cambodia, St Kitts & Nevis, North Korea, South Korea, Kuwait, Kazakhstan, Laos, Lebanon, St Lucia, Liechtenstein, Sri Lanka, Lithuania, Luxembourg, Latvia, Monaco, Moldova, Montenegro, North Macedonia, Myanmar, Mongolia, Malta, Maldives, Mexico, Malaysia, Nicaragua, Netherlands, Norway, Nepal, Oman, Panama, Philippines, Pakistan, Poland, Puerto Rico, Portugal, Qatar, Romania, Serbia, Russia, Saudi Arabia, Sweden, Singapore, Slovenia, Slovakia, San Marino, El Salvador, Syria, Thailand, Tajikistan, Timor-Leste, Turkmenistan, Turkey, Trinidad & Tobago, Taiwan, Ukraine, United States, Uzbekistan, St Vincent, Vietnam, Yemen

How to Identify

Oxalis deppei is a bulbous perennial reaching 30cm tall and 10cm wide, flowering abundantly from June through November with hermaphroditic blooms pollinated by insects. It prefers light sandy or medium loamy, well-drained soil in full sun, thriving in mildly acid to neutral pH and moist conditions. Hardy to UK zone 8 but frost tender.

How to Grow

An easily grown plant, preferring a sandy soil in a warm dry position. It dislikes dry or heavy soils. Dislikes lime. Prefers a southerly aspect. This species is only hardy outdoors in the milder areas of Britain, tolerating temperatures down to about -5°c or perhaps a bit lower if the soil is very well-drained. The bulbs are easily harvested in late autumn, however, and can be stored overwinter in a cool frost free place, replanting them in the spring. In milder winter areas a good mulch is usually sufficient to see the bulbs through the winter and they will then normally be more productive of leaves and flowers in the following year. Plants have survived the winter for several years without a mulch on our trial grounds in Cornwall. A very ornamental plant, flowering freely all summer. It was formerly cultivated in Mexico for its edible tuber (this may be a mistaken entry that should have referred to O. tuberosa. Whilst the root of this plant is edible it is neither productive nor very flavourful. The leaves and the flowers are far superior). This species is closely related to and probably part of O. tetraphylla, differing only in its sessile bulbils and truncate leaves.

Propagation: Seed is best sown as soon as ripe in a cold frame. Prick out seedlings into individual pots when large enough to handle, then plant out in late spring or early summer. Plants grown here have never produced seed. Division is done in autumn by harvesting the bulbs and replanting in spring; they generally increase very freely.

Medicinal Uses

None known.

Other Uses

None known.

Wikipedia

Source ↗

Oxalis deppei is a bulbous perennial reaching 30cm tall and 10cm wide, flowering abundantly from June through November with hermaphroditic blooms pollinated by insects. It prefers light sandy or medium loamy, well-drained soil in full sun, thriving in mildly acid to neutral pH and moist conditions. Hardy to UK zone 8 but frost tender.

Names & Synonyms

Orach

References (5)
  • Facciola, S., 1998, Cornucopia 2: a Source Book of Edible Plants. Kampong Publications, p 165
  • Hellmuth, N. M., 2011, Maya Ethnobotany. Complete Inventory of plants. Associacion FLAAR Mesoamerica. Tenth edition.
  • Heywood, V.H., Brummitt, R.K., Culham, A., and Seberg, O. 2007, Flowering Plant Families of the World. Royal Botanical Gardens, Kew. p 239
  • Lim, T. K., 2015, Edible Medicinal and Non Medicinal Plants. Volume 9, Modified Stems, Roots, Bulbs. Springer p 61
  • Veldkamp, 1971, Oxalidaceae, Flora Malesia Series 1 Vol 7:1 p 162

More from Oxalidaceae