SPREADING YELLOW SORREL

PROCUMBENT YELLOW SORREL

Oxalis corniculata

Wood-Sorrel Family [Oxalidaceae]  

month8May month8jun month8june month8jul month8july month8Aug month8sep month8sept

status
statusZneophyte
flower
flower8yellow
inner
inner8orange
morph
morph8actino
petals
petalsZ5
stem
stem8round

11th Aug 2009, pub garden, Barley, Lancs. Photo: © RWD
Most runners are under-ground.


20th Aug 2008, Wokingham Photo: © John Harrison
The trefoil leaves are very clover-like, but turn a dark purple to beetroot colour on exposure to strong sunlight. The stems however go reddish.


20th Aug 2008, Wokingham Photo: © John Harrison
The flower is buttercup-like with five shiny yellow petals, the yellowness of which can peel off revealing white beneath. The leaves have a pronounced nick in the centre and are folded in the middle. The edges of the leaves have short hairs.


28th April 2010, Kangaroo Inn, Aston on Clun, Shropshire. Photo: © RWD
With strong exposure to sun all the leaves turn a beetroot/green colour. Two un-opened flower buds on the right.


20th Aug 2008, Wokingham Photo: © John Harrison
Like Wood-Sorrel the trefoil leaves will fold up when in the deep shade.


28th April 2010, Kangaroo Inn, Aston on Clun, Shropshire. Photo: © RWD
The petals have transparent vein in the middle. There is an orange ring near the centre.


28th April 2010, Kangaroo Inn, Aston on Clun, Shropshire. Photo: © RWD
Five narrow greenish/orange sepals support the rear of the flower.


28th April 2010, Kangaroo Inn, Aston on Clun, Shropshire. Photo: © RWD
The reddish flower stems are slightly hairy. The narrow sepals on the flower in evidence.


28th April 2010, Kangaroo Inn, Aston on Clun, Shropshire. Photo: © RWD
The orange corona near the centre resembles the appearance of the sun in a total eclipse; streaky. The very deep centre of the flower is green. Yellow anthers.


11th Aug 2009, pub garden, Barley, Lancs. Photo: © RWD
Rayed orange veins may be present rather than a central orange halo.


Some similarities to : Upright Yellow Sorrel.

Distinguishing Feature : Of the wood-sorrels, this sorrel has a tendency to have a few dark purple leaves.

No relation to : Sheep's Sorrel (Rumex acetosella), Common Sorrel (Rumex acetosa), Mountain Sorrel (Rumex digyna) nor to French Sorrel (Rumex scutatus) [plants of similar name belonging to a differing genus, Rumex, which belongs to a differing family Polygonacea (Dock and Knotweed Family, although both genera possess salts of Oxalic Acid such as Calcium Oxalate].

Spreading Yellow Sorrel is most likely to be found as a persistent weed in gardens.


  Oxalis corniculata  ⇐ Global Aspect ⇒ Oxalidaceae  

Distribution
family8Wood-Sorrel family8WoodSorrel  family8Oxalidacaea

 BSBI maps
genus8Oxalis
Oxalis
(Wood-sorrels)

SPREADING YELLOW SORREL

PROCUMBENT YELLOW SORREL

Oxalis corniculata

Wood-Sorrel Family [Oxalidaceae]  

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