Oxalis oregana Nutt.

Redwood-sorrel (en)

Species

Angiosperms > Oxalidales > Oxalidaceae > Oxalis

Characteristics

Herbs perennial, acaulous, rhizomes present, <fleshy-thickened, densely scaly>, stolons absent, bulbs absent. Leaves basal, <clustered at rhizome tips>; petiole 5–15(–21) cm, <sparsely to densely villous, hairs rusty>; leaflets 3, green, broadly obcordate, 10–30(–40) mm, lobed 1/5–1/4 length, <lobes apically convex>, surfaces sparsely villous, oxalate deposits absent. Inflorescences 1-flowered; scapes (6–)11–25 cm, glabrous or sparsely villous. Flowers heterostylous; sepal apices without tubercles; petals white to deep pink, usually with yellow spot sub-basally and prominent purple veins, (8–)15–25 mm. Capsules ovoid, 6–8(–12) mm, glabrate.
More
A creeping herb which keeps growing from year to year. It grows 18-20 cm high and spreads 100 cm wide. The leaves have 3 leaflets. They are mid-green. The flowers are pink. They can be lilac or white.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 1.0 - 0.55
Mature height (meter) 0.2
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a warm temperate plant. It suits hardiness zones 7-10.
More
Redwood forests. Moist woods.
Light 1-8
Soil humidity 4-6
Soil texture 1-6
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 7-9

Usage

The leaves are eaten raw in salads. They are also allowed to ferment to a tasty dessert. The sour leaf stalks are used to make a pie.
Uses medicinal wood
Edible flowers leaves stems
Therapeutic use Dermatological Aid (leaf), Eye Medicine (root), Eye Medicine (unspecified), Dietary Aid (unspecified), Other (unspecified), Antirheumatic (External) (unspecified), Dermatological Aid (unspecified), Disinfectant (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 14 - 60
Germination temperacture (C°) 12 - 20
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Oxalis oregana leaf picture by Dawn (cc-by-sa)
Oxalis oregana leaf picture by Ethan Kyzivat (cc-by-sa)
Oxalis oregana leaf picture by Jessica Jenkins (cc-by-sa)

Flower

Oxalis oregana flower picture by Kim Schwichtenberg (cc-by-sa)
Oxalis oregana flower picture by Eric Rizzo (cc-by-sa)
Oxalis oregana flower picture by Maarten Vanhove (cc-by-sa)

Distribution

Oxalis oregana world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:178283-2
WFO ID wfo-0000386872
COL ID 4BB83
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acetosella oregana Oxalis oregana f. smalliana Oxalis smalliana Oxys oregana Oxalis oregana var. smalliana Oxalis acetosella var. oregana Oxalis oregana var. tracyi Oxalis acetosella subsp. oregana Oxalis oregana