Bermuda Buttercup

Oxalis pes-caprae

Physical Characteristics

Oxalis pes-caprae is a PERENNIAL growing to 0.2 m (0ft 8in) by 0.3 m (1ft). See above for USDA hardiness. It is hardy to UK zone 9. It is in leaf from October to June, in flower from March to June, and the seeds ripen from April to June. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil.

Distribution

S. Africa. Occasionally naturalized in Britain.

Habitats

Cultivated Beds; South Wall. In. West Wall. In.

Edible Uses

Edible Parts: Flowers Leaves Root Edible Uses: Leaves - raw or cooked[2, 173]. A pleasant acid flavour, the make a pleasant addition to mixed salads, whilst children especially like to eat them on their own[K]. Use in moderation, see notes at top of sheet. Flowers - raw[K]. A pleasant acid flavour, they make an attractive addition to the salad bowl[K]. Root - cooked[22, 46, 103, 173].

Medicinal Uses

None known

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[238].