Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Stachys

View taxon page for Stachys

(For a list of species in Stachys, use the above link.)

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

1. Corolla tube > 15 mm ..... S. chamissonis

1' Corolla tube < 15 mm

2. Internal ring of hairs perpendicular to corolla tube; corolla not pouched toward base on lower side ..... S. bullata

2' Internal ring of hairs  to corolla tube; corolla pouched toward base on lower side

3. Hairs densely silky-silvery, woolly; Del Norte Co. ..... S. bergii

3' Hairs soft, stiff, or glandular, never silky-silvery; widespread

4. Upper corolla lip < 2 mm; stamens ±  from corolla tube ..... S. stricta

4' Upper corolla lip > 2 mm; stamens clearly exserted from corolla tube

5. Calyx  , ± = tube; proximal leaves short-petioled to ; MP ..... S. pilosa

5' Calyx lobes generally deltoid or triangular, shorter than tube; proximal leaves generally long-petioled; widespread

6. Plant with abundant cobwebby, tangled hairs, herbage generally felty ..... S. albens

6' Plant lacking cobwebby, tangled hairs, herbage not felty

7. Mature inflorescence compact, generally only 2 lowest bracts visible ..... S. pycnantha

7' Mature inflorescence elongated, many bracts visible

8. Leaf  narrowed, silky hairy, base wedge-shaped; corolla white (± pink) ..... S. ajugoides

8' Leaf blade broader, never silky, base rounded, , or ; corolla pink or darker (white)

9. Stem, herbage densely glandular, resinous; lower corolla lip 6–10 mm wide ..... S. stebbinsii

9' Stem, herbage ± glandular, not resinous; lower corolla lip 4–6 mm wide

10. Corolla magenta to purple; bracts gradually reduced distally on stem; NW, ScV, SnFrB ..... S. mexicana

10' Corolla pink, bracts rapidly reduced distally on stem; widespread ..... S. rigida

11. Plant generally < 1 m;  base cordate, blade  ..... var. quercetorum

11' Plant generally 1 m; leaf base rounded (cordate), blade lanceolate to  ..... var. rigida


Please use this Google Form for Contact/Feedback

Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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.