Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Oxalis dillenii Jacq. image
Photographer: from USDA Plants website           

Merel R. Black
Family Oxalidaceae
Oxalis dillenii Jacq.
Dillenius' oxalis, southern yellow wood-sorrel
Oxalis: from the Greek oxus for "sour," referring to the pleasantly sour taste of the leaves and stem
dillenii: Named for Johann Jacob Dillen (Latinized to Dillenius), 18th century German botanist and physician
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect to drooping, perennial, up to 16" tall forb, hairy, not creeping, weedy
Flower: yellow, 5-parted, 1/3"-3/4" wide; inflorescence an umbel-like, un-branched cluster of stalked flowers from the leaf axils
Fruit:grayish, 1/2"-1" capsule on a spreading or slightly bent stalk; seeds brownish with white ridges
Leaf:3-parted, alternate

More Information Natural Communities Herbarium Specimens
All Oxalis list Google- Images or Text
Oxalis corniculata L. var. dillenii (Jacq.) Trel.
Oxalis dillenii Jacq. subsp. dillenii
Oxalis dillenii Jacq. var. radicans Shinners
Oxalis rupestris Raf.
Oxalis stricta L., sensu Lourteig (1979) & Voss (1985)
Xanthoxalis dillenii (Jacq.) Holub

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