Oxalis tetraphylla

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Four-leaved Pink-sorrel
Oxalis tetraphylla leaf.JPG
A single leaf showing its 4 leaflets
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Oxalidales
Family: Oxalidaceae
Genus: Oxalis
Species: O. tetraphylla
Binomial name
Oxalis tetraphylla
Cav.
Synonyms

Oxalis deppei Lodd. ex Sweet

2007-07-01Oxalis tetraphylla02.jpg

Oxalis tetraphylla (often still traded under its syn. O. deppei) is a bulbous plant from Mexico. A common name is "Iron Cross", after a famous cultivar; it is also known as "lucky clover", and in a wild or feral state as Four-leaf Sorrel or, least ambiguously, Four-leaved Pink-sorrel.

It has leaves divided into four and has been called "lucky leaf" and even "four-leaf clover", but it is not a true clover. Related to the Common Wood-sorrel (Oxalis acetosella), it is commonly used as an ornamental plant. It is also edible, the flowers and leaves having a sharp lemon flavor. However, since the oxalic acid in the plant can interfere with the absorption of certain nutrients in the body, especially calcium, too much can be harmful.

Cultivation[edit]

Hardiness: Zones 8–9. If planted in early spring it will grow and flower throughout spring and summer. Some bulbs can survive a cold winter but in areas with frost they should be kept in a cool dry place over winter and replanted in the spring. The bulbs will multiply by autumn.

References[edit]