Oxalis corniculata

Oxalis (Oxalis corniculata )

Called The Oxalis (Oxalis corniculata ), also Horned sorrel or Hornfrüchtiger sorrel, a species of the genus is sorrel ( Oxalis ).

Description of the plant

The Oxalis corniculata is an annual to perennial herbaceous plant. The short main stem is creeping side shoots that are 10 to 40 inches long and rooting at the nodes often. The nearly always alternate, stalked leaves are in three fingered and often stained reddish- brown. The sessile leaves are inversely heart-shaped and can be folded down to a basal joint. The 1.5 to 2 mm long stipules are widely grown very small and with the petiole.

In a doldigen inflorescence with a thin, 1-8 cm long inflorescence stem and two to many 2 to 4 mm long bracts few flowers are borne. The hermaphrodite, radiärsymmetrische flower is fünfzählig. The five hairy, greenish sepals are 2-5 mm long. The five yellow petals are 4 to 10 mm long. There are two circles, each with five stamens present. From the smooth stamens are the longest as long as the sepals. Five carpels are fused into a superior ovaries. The hairy pen is about 5 mm long. The flowering period extends from May to October.

The usually 9 to 17 ( 4 to 25 ) mm long, hairy capsule fruit contains in each subject to a lot of (usually 5 to 14 ) seeds. The brown, ribbed seeds are 1 to 1.5 x 0.8 to 1 mm in size.

Dissemination

The Oxalis corniculata is native to the Mediterranean region. Today he is naturalized worldwide.

System

In addition to the nominate one variety is still distinguished:

• Oxalis corniculata var repens ( Thunb. ) Zucc. , The occasionally as an independent species Oxalis repens Thunb. accrued variety has only one or two flowers per inflorescence, 10 to 16 millimeters long and 6 capsules up to 12 mm long part sheets.

There are a number of synonyms: Acetosella corniculata (L.) Kuntze, Oxalis corniculata f erecta Makino, O. corniculata subsp. repens ( Thun. ) Masamune, O. corniculata var repens ( Thun. ) Zucc. , O. corniculata subsp. subglabra ( Kuntze ) Masamune, O. corniculata var taiwanensis Masamune, O. minima Steudel, O. procumbens Steudel, O. repens Thun., O. repens var erecta ( Makino ) Masamune, O. repens f speciosa Masamune, O. taiwanensis ( Masamune ) Masamune, Xanthoxalis corniculata (L.) Small, X. corniculata var repens ( Thun. ) Nakai, X. repens ( Thun. ) Moldenke. This list also shows that the variety is not generally accepted.

Pictures

Flower from above.

Evidence

• Oxalis corniculata. In: FloraWeb.de.
• Entry in Aluka. (English )
• Description in the Flora of China. (English )
• Demuth, S.: Oxalidaceae, sour clover plants. In: Sebald, O., Seybold, S. & Philippi, G. (ed. ): The ferns and flowering plants of Baden -Württemberg, Volume 4 - Ulmer, Stuttgart 1992, ISBN 3-8001-3315-6.