Jepson eFlora
Key to families | Table of families and genera

Key to Sedum

View taxon page for Sedum

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

1. Subshrub ..... S. praealtum

1' Annual to perennial herb

2. Stems densely glandular-hairy toward base ..... S. album

2' Stems glabrous, glaucous, or papillate, not glandular-hairy toward base

3. Leaves generally widest ± below middle, tapered to tip (except Sedum niveum); leaves ± = bracts (except Sedum lanceolatum)

4. Petals white, pink-streaked, fused > 1 mm; flowers 1–9; fruit erect ..... S. niveum

4' Petals yellow or white, ± free; flowers 1–44; fruit erect to spreading

5. Leaves red-scarious in age

6. Annual, biennial; leaf tip obtuse to acute; fruit 3–5 mm, spreading to strong-reflexed; stems without plantlets in place of distal leaves, flowers ..... S. radiatum

6' Perennial herb; leaf tip long-tapered; fruit 5–8 mm, ± erect; stems often with plantlets in place of distal leaves, flowers ..... S. stenopetalum

5' Leaves staying green, fleshy

7. Bracts ± elliptic to round, surfaces convex; fruit spreading ..... S. divergens

7' Bracts lanceolate, surfaces ± flat; fruit ± erect, tips outcurved ..... S. lanceolatum

3' Leaves generally widest above middle, tapered to base; leaves > bracts

8. Inflorescence generally ± 3-branched; petals long-acuminate and fruits erect, or petals acute and fruits generally outcurved

9. Petals long-acuminate, 8–13 mm, fused < 3 mm; fruit erect; outer rosette leaves = inner ..... S. oreganum

9' Petals acute, (5)7–8(10) mm, ± free; fruit generally outcurved; outer rosette leaves >> inner ..... S. spathulifolium

8' Inflorescence generally > 3-branched; petals obtuse to acute and fruits erect

10. Rosette open, internodes visible, some 3–5 mm

11. Petals rounded to obtuse; anthers yellow (red-brown); inflorescence 2–8 cm, 13–40(72)-flowered ..... S. obtusatum subsp. retusum

11' Petals acute to acuminate; anthers yellow or red-brown; inflorescence 1–14 cm, 10–95(120)-flowered

12. Petals spreading, acuminate, deep yellow; anthers yellow when fresh; inflorescence ± flat-topped ..... S. citrinum

12' Petals ascending to spreading-ascending, acute, pale yellow; anthers yellow or red-brown when fresh; inflorescence ± cylindrical ..... S. oregonense

10' Rosette dense, internodes not visible, < 3 mm

13. Inflorescence strongly white-glaucous; rosette leaves 11–60 mm, generally > 3.5 × longer than wide; anthers generally yellow (turning red-brown)

14. Bracts 14–30 mm; rosettes 3–9 cm diam, leaves 14–60 mm, 7–16 mm wide, widest 6–9 mm below tip; petals ± pale yellow; fruit free ..... S. albomarginatum

14' Bracts 7–13 mm; rosettes 1–6 cm diam, leaves 11–35 mm, 3–9 mm wide, widest 2–3 mm below tip; petals ± cream; fruit fused at base ..... S. oblanceolatum

13' Inflorescence not or ± glaucous; rosette leaves 6–50 mm, generally < 3 × longer than wide (or anthers red-purple); anthers yellow to purple-black

15. Petals dark pink to dark red; bract surfaces convex, base cordate, not clasping ..... S. laxum subsp. eastwoodiae

15' Petals white to yellow or pink; bract surfaces flat, base obtuse to truncate, not clasping, or cordate, clasping

16. Petals white to pink, or pale yellow ..... S. laxum

17. Bract length >> width; plant 7–40 cm; rosette leaves 10–50 mm ..... subsp. laxum

17' Bract length < to > width; plant 9–24 cm; rosette leaves 9–32 mm

18. Petals pale yellow; bract base often truncate, not clasping; sepals < 1/3 petals ..... subsp. flavidum

18' Petals white to pink; bract base cordate, clasping; sepals 1/3–2/3 petals ..... subsp. heckneri

16' Petals cream or deep yellow, pink-tinged or not, red-veined or not (pale yellow or pink-white in Sedum obtusatum subsp. boreale) ..... S. obtusatum

19. Petals cream, not ± pink- or red-tinged or -veined; sepals 3.5–6 mm, acute to long-tapered ..... subsp. paradisum

19' Petals yellow, pale yellow, or white, ± pink- or red-tinged or -veined at least in age; sepals 1.8–5 mm, obtuse to acute

20. Bracts 8–15 mm; petals pale yellow or white, generally pink-tinged or -veined; inflorescence 15–38(60)-flowered ..... subsp. boreale

20' Bracts generally 4–9(13) mm; petals yellow, ± red-tinged or -veined in age; inflorescence 8–26(46)-flowered ..... subsp. obtusatum


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