Practical
Plants

Oxalis triangularis

a perennial member of the Oxalis genus in the family Oxalidaceae.

No photo available

Taxonomy and growth

Genus
Oxalis
Life cycle
perennial
Height
0.2 m
Fertility
Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Toxicity

Toxicity warning. The historical record reports a hazard for this plant. Do not use it to decide which parts are safe to eat or use medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

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[3].

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Leaves - raw or cooked[K]. A pleasant acid flavour[K]. Use in moderation, see notes at top of sheet, Flowers - raw[K]. A pleasant and decorative addition to the salad bowl[K]. Root - raw or cooked. The root is up to 5cm long and 15mm wide, it is crisp and juicy with a pleasant sweet mild flavour[K].

Plant part
Flowers
Plant part
Leaves
Plant part
Root

Environment

Range
S. America - Brazil.
Habitat
Amongst rocks by streams at elevations of about 600 metres around Rio de Janeiro[4].
Light
full sun
Shade tolerance
light shade
Water
moderate
Soil textures
sandy, loamy
Soil pH
acid, neutral, alkaline
Drainage
well drained
Tolerances
high wind
Wind
Yes
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - best sown as soon as it is ripe in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in a greenhouse for their first winter. Plant them out in late spring or early summer. Division in spring. Larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

Easily grown in a sandy soil in a warm dry position in sun or light shade[1][2]. Grows well in a dry shady corner[4]. Plants are not very cold-hardy in Britain, tolerating temperatures down to about -3°c[4]. Given a suitable position, it should succeed outdoors at least in the mildest parts of the country[K]. It should be possible to grow it even in the colder areas by digging up the bulbs in the autumn after the top growth has been cut down by frosts, storing them in a cool but frost-free place and replanting them in mid to late spring[K].

References

  1. F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00

    ↩

  2. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

    ↩

  3. Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. 1995-00-00 ISBN 0-7513-020-31

    ↩

  4. Phillips. R. & Rix. M. Conservatory and Indoor Plants Volumes 1 & 2 Pan Books, London. 1998-00-00 ISBN 0-330-37376-5

    ↩1↩2↩3

Edit this page