Jepson eFlora
Key to families | Table of families and genera

Key to Orchidaceae

View taxon page for Orchidaceae

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

1. Functional stamens 2, staminodes 1 ..... CYPRIPEDIUM

1' Functional stamens 1, staminodes 0

2. Leaves 0 at flower

3. Flower spurred, without mentum ..... PIPERIA (2)

3' Flower not spurred, with mentum or not

4. Flowers in spiral, lip pouch-like ..... SPIRANTHES (2)

4' Flowers not in spiral, lip not pouch-like

5. Plant white, becoming ± yellow or brown ..... CEPHALANTHERA

5' Plant brown, tan, ± pink, ± red, ± purple (± green) ..... CORALLORHIZA

2' Leaves present at flower

6. Leaves cauline

7. Leaves 2, ± opposite, ± at mid stem ..... LISTERA

7' Leaves > 2, alternate, along stem

8. Leaves with > 1 lengthwise fold, green, white, or pink; flower not spurred ..... EPIPACTIS

8' Leaves with 1 lengthwise fold, green; flower spurred ..... PLATANTHERA

6' Leaves ± basal

9. Leaves 1(2)

10. Flowers 1, lip pouch-like ..... CALYPSO

10' Flowers > 1, lip not pouch-like ..... MALAXIS

9' Leaves > 1

11. Leaves in rosette ..... GOODYERA

11' Leaves not in rosette

12. Flowers not in spiral, spurred ..... PIPERIA (2)

12' Flowers in spiral, not spurred ..... SPIRANTHES (2)

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.