Jepson eFlora
Key to families | Table of families and genera

Key to Lewisia

View taxon page for Lewisia

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

1. Cauline leaves 3–5, whorled, less often 2, opposite; taproot 0; tuberous root spheric, with many rootlets ..... L. triphylla

1' Cauline leaves 0–many, opposite or alternate; taproot present; tuberous root 0

2. Basal leaves green after flower, not shriveled

3. Basal leaf blades linear to narrowly oblanceolate; leaf margin entire

4. Leaves flat or adaxialy grooved ..... L. ×whiteae

4' Leaves ± cylindric, adaxially not grooved ..... L. leeana

3' Basal leaf blades ovate, oblanceolate, ± spoon-shaped, or obovate to round (± linear); leaf margin entire or toothed

5. Petals 5–9 mm, white to pale pink with darker veins; inflorescence panicle, open

6. Pedicel 0.3–4 mm; petals 6–9 mm ..... L. cantelovii

6' Pedicel 3–8 mm; petals 5–6 mm ..... L. serrata

5' Petals (8)10–20 mm, generally pink-purple with pale and darker stripes, less often white, cream with pink-orange stripes, yellow, or orange; inflorescence cyme, ± umbel, or panicle, ± dense ..... L. cotyledon

7. Leaf margin ± entire; petals (8)12–14 ..... var. cotyledon

7' Leaf margin dentate or wavy; petals 12–20 mm

8. Leaf margin dentate; 225–2200 m ..... var. heckneri

8' Leaf margin ± wavy; 100–400 m ..... var. howellii

2' Basal leaves shriveled after flower, turning brown

9. Flowers sessile; bract, sepal pairs resembling 4-parted calyx

10. Sepal margin entire, not glandular; petals 12–26 mm ..... L. brachycalyx

10' Sepal margin toothed, glandular or not; petals 10–30 mm ..... L. kelloggii

11. Leaf blade > 4.5 cm, > 1 cm wide; petals >= 20 mm ..... subsp. hutchisonii

11' Leaf blade < 4.5 cm, < 1 cm wide; petals <= 20 mm ..... subsp. kelloggii

9' Flowers pedicelled; bract, sepal pairs not resembling 4-parted calyx

12. Flowers breaking apart in fruit; sepals 2–9, scarious, margins entire to ± jagged, not toothed

13. Sepals 2; petals 5–9; proximal bracts 2–4 per node ..... L. disepala

13' Sepals (4)6–9; petals 10–19; proximal bracts 4–7(8) per node ..... L. rediviva

14. Sepals 10–12(15) mm; petals ± 15 mm; stamens 20–30 ..... var. minor

14' Sepals 15–25 mm; petals 18–35 mm; stamens 30–50 ..... var. rediviva

12' Flowers not breaking apart in fruit; sepals 2, not scarious, margins entire, toothed, or gland-toothed

15. Cauline leaves opposite, not markedly smaller than basal ..... L. oppositifolia

15' Cauline leaves 0 or alternate, markedly smaller than basal

16. Basal leaves oblanceolate, spoon-shaped, or obovate; inflorescence 3–100-flowered

17. Cymes panicle-like, 20–100-flowered; petals 6–7, pale pink, base yellow-green; stamens 4–5 ..... L. congdonii

17' Cymes ± umbel-like, 3–11-flowered; petals 7–10, magenta or red, bases white or ± pink; stamens 10–13 ..... L. stebbinsii

16' Basal leaves thread-like to linear to narrow-lanceolate or -oblanceolate; inflorescence < 16-flowered

18. Flowers 2.5–4 cm diam; petals >= 15 mm ..... L. longipetala

18' Flowers 0.5–2 cm diam; petals <= 20 mm

19. Petals 9–20 mm; sepal margins entire to ± jagged, not gland-toothed (obscurely or irregularly toothed), tips ± acute ..... L. nevadensis

19' Petals 4–10 mm; sepal margins ± jagged, toothed, or gland-toothed (entire), tips ± rounded or truncate

20. Bract, sepal glands ± red or dark; stamens 6; stigmas 4 ..... L. glandulosa

20' Bract, sepal glands 0 or pale; stamens 4–8; stigmas 3–6 ..... L. pygmaea

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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].
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