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Oxalis articulata

(Jointed Woodsorrel)

Common Names

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Common Names in English:

Jointed Woodsorrel, Pink oxalis, Pink Sorrel, Sourgrass


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Family Oxalidaceae

The Oxalidaceae are herbs, shrubs , or rarely trees comprising 7 or 8 genera and about 800 species. The leaves are alternate and pinnately or palmately compound or rarely simple by suppression of leaflets ; stipules are absent. The flowers are bisexual and actinomorphic . The perianth consists of a calyx of 5 distinct sepals and a corolla of 5 distinct or sometimes basally connate petals. The stamens are basally connate and obdiplostemonous , that is, of two series with the outer series opposite the petals; occasionally 5 stamens are reduced to staminodes. The gynoecium consists of a single compound pistil of 5 carpels, 5 distinct styles, and a superior ovary with 5 locules, each containing one or more axile ovules. The fruit is a loculicidal, sometimes explosively dehiscent capsule or berry. -- Gerald Carr

Genus Oxalis

Mostly bulbous herbs with acidic juice. Aerial stem reduced, creeping or rhizomatous . Leaves digitately compound , showing sleep movements. Flowers regular. Stamens monadelphous at the base ; filaments 5 long and 5 short, alternating with one another. Ovary 5 locular with one or more ovules in each locule. Often heterostylous (in some European species) . Fruit capsular . Seeds with an elastic testa.

A large genus with about 800 species. Mostly found in North and South America, South Africa and fairly well represented in Europe and Asia.[1]

Physical Description

Habit: Evergreen .

Flowers: Bloom Period: June, July, August. • Flower Color: near white, pink, white


Size: under 6" tall.


Typically found in the intertidal zone at the water's edge at a mean distance from sea level of 50.59 meters (165.98 feet).[2]

Biome: Coastal.


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Culture: Space 9-12" apart.

Soil: Minimum pH: 6.1 • Maximum pH: 7.8

Sunlight: Sun Exposure: Sun to Partial Shade.

Temperature: Cold Hardiness: 8b, 9a, 9b. (map)


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Acetosella articulata (Savigny) Kuntze


Name Status: Accepted Name .

Last scrutiny: 17-Oct-2001

Similar Species

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Members of the genus Oxalis

ZipcodeZoo has pages for 121 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

O. acetosella (Common Wood Sorrel) · O. adenophylla (Chilean Wood Sorrel) · O. albicans (Radishroot Woodsorrel) · O. albicans albicans (Radishroot Woodsorrel) · O. albicans californica (Radishroot Woodsorrel) · O. albicans pilosa (Radishroot Woodsorrel) · O. albicans subsp. californica (California Woodsorrel) · O. albicans subsp. pilosa (Radishroot Woodsorrel) · O. alpina (Alpine Woodsorrel) · O. articulata (Jointed Woodsorrel) · O. articulata rubra (Jointed Woodsorrel) · O. barrelieri (Barrelier's Woodsorrel) · O. bowiei (Bowie Woodsorrel) · O. caerulea (Blue Woodsorrel) · O. corniculata ('ihi) · O. corniculata corniculata (Creeping Woodsorrel) · O. corniculata var. microphylla (Creeping Lady´s-Sorrel) · O. corniculata var. pilosiuscula (Creeping Lady´s-Sorrel) · O. corniculata var. preissiana (Creeping Lady´s-Sorrel) · O. corniculata var. pubescens (Creeping Lady´s-Sorrel) · O. corniculata var. pygmaea (Creeping Lady´s-Sorrel) · O. corniculata var. radicosa (Creeping Lady´s-Sorrel) · O. corniculata var. repens (Creeping Lady´s-Sorrel) · O. corniculata var. serpens (Creeping Lady´s-Sorrel) · O. corniculata var. stricta (Creeping Lady´s-Sorrel) · O. corniculata 'Rubra' (Creeping Wood Sorrel) · O. corymbosa (Pink Shamrock) · O. corymbosa 'Aureo-Reticulata' (Gold Veined Oxalis) · O. crassipes (Pink Wood Sorrel) · O. crassipes 'Alba' (White Oxalis) · O. crassipes 'Rosea' (Pink Wood Sorrel) · O. debilis (Pink Wood Sorrel) · O. debilis corymbosa (Pink Woodsorrel) · O. debilis var. corymbosa (Pink Woodsorrel) · O. decaphylla (Gray's Woodsorrel) · O. depressa (Oxalis) · O. dichondrifolia (Agrito) · O. dillenii (Slender Yellow Wood Sorrel) · O. dillenii filipes (Dillen's Oxalis) · O. drummondii (Drummond Woodsorrel) · O. eggersii (Eggers' Woodsorrel) · O. enneaphylla 'Minutifolia' (Oxalis) · O. enneaphylla 'Patagonia' (Oxalis) · O. exilis (Creeping Oxalis) · O. frutescens (Shrubby Oxalis) · O. frutescens angustifolia (Shrubby Oxalis) · O. frutescens subsp. angustifolia (Shrubby Woodsorrel) · O. gigantea (Giant Oxalis) · O. grandis (Great Yellow Wood-Sorrel) · O. hedysaroides (Fire Fern) · O. hedysaroides Kunth 'Rubra' (Fire Fern) · O. hirsutissima (Hairy Oxalis) · O. hirta (Trailing Oxalis) · O. illinoensis (Illinois Woodsorrel) · O. incarnata (Crimson Woodsorrel) · O. intermedia (West Indian Woodsorrel) · O. lactea (Tūtae Kākā) · O. lasiandra (Palm Tree Oxalis) · O. latifolia (Broad-Leaf Woodsorrel) · O. lobata (Oxalis) · O. luteola 'Maculata' (South African Oxalis) · O. macrocarpa (Sorrel) · O. magellanica (Oxalis) · O. magellanica 'Nelson' (Oxalis) · O. malloloba (Rough-Snouted Gurnard) · O. melanostricta 'Ken Aslet' (Oxalis) · O. montana (Green Snob) · O. nelsonii (Sorrel) · O. oregana (Oregon Wood-Sorrel) · O. ortgiesii (Fishtail Oxalis) · O. peduncularis (Tree Oxalis) · O. perennans (Woody Root Oxalis) · O. pes-caprae (African Woodsorrel) · O. priceae (Price's Yellow Wood Sorrel) · O. priceae colorea (Tufted Yellow Woodsorrel) · O. priceae texana (Tufted Yellow Woodsorrel) · O. priceae subsp. colorea (Tufted Yellow Woodsorrel) · O. priceae subsp. texana (Texas Woodsorrel) · O. purpurea (Purple Woodsorrel) · O. purpurea 'Garnet' (Oxalis) · O. purpurea 'Grand Duchess' (Oxalis) · O. radicosa (Dwarf Woodsorrel) · O. regnelli (Red Leaf) · O. regnellii (False Shamrock) · O. regnellii 'Alba' (False Shamrock) · O. regnellii'Atropurpurea' (Purple Oxalis) · O. regnellii 'Irish Mist' (False Shamrock) · O. regnellii 'Triangularis' (False Shamrock) · O. rosea (Sorrel) · O. rubra (Oxalis Rubra) · O. rugeliana (Coamo) · O. siliquosa 'Copper Glow' (Copper Velvet Shamrock) · O. siliquosa 'Copper Tones' (Copper Velvet Shamrock) · O. siliquosa 'Sunset Velvet' (Copper Velvet Shamrock) · O. spiralis (Spiral Sorrel) · O. spiralis vulcanicola (Volcanic Sorrel) · O. spiralis 'Aureus' (Spiral Sorrel) · O. stricta (Common Yellow Oxalis) · O. stricta var. bushii (Upright Yellow-Sorrel) · O. stricta var. europaea (Upright Yellow-Sorrel)

More Info

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Further Reading

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Data Sources

Accessed through GBIF Data Portal November 15, 2007:



  1. "Oxalis". in Flora of Pakistan . Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at [back]
  2. Standard Deviation = 136.930 based on 2,118 observations. Terrestrial altitude and ocean depth information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 2014-11-20