Jepson eFlora
Key to families | Table of families and genera

Key to Oxalis

View taxon page for Oxalis

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Petals yellow to yellow-orange, drying ± red or not

2. Annual; fruit < 5 mm ..... O. micrantha

2' Perennial herb; fruit >= 6 mm or 0

3. Leaves in loose, ± basal rosette; bulbs present ..... O. pes-caprae

3' Leaves cauline; bulbs 0

4. Petals 12–20 mm; North Coast ..... O. suksdorfii

4' Petals 5–12 mm; North Coast, elsewhere

5. Petals generally < 8 mm; taproot fibrous; stem rooting at nodes ..... O. corniculata

5' Petals generally 8–12 mm; taproot ± woody; stem not rooting at nodes (sometimes rooting at nodes in O. pilosa)

6. Hairs generally sparse, appressed or arched upward; pedicels > 2 × fruit ..... O. californica

6' Hairs dense, generally spreading; pedicels < 2 × fruit ..... O. pilosa

1' Petals white to pink, red, purple-rose, or purple

7. Bulbs 0

8. Rhizome woody, not creeping; disturbed places ..... O. articulata subsp. rubra

8' Rhizome fleshy, creeping; ± undisturbed forests

9. Flowers 1 ..... O. oregana

9' Flowers 3–9 in umbel-like cyme ..... O. trilliifolia

7' Bulbs present

10. Stem elongate ..... O. incarnata

10' Stem ± 0

11. Flowers in umbel-like cyme ..... [O. bowiei]

11' Flowers 1 ..... [O. purpurea]

Contact/Feedback

Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.