Jepson eFlora
Key to families | Table of families and genera

Key to Erythronium

View taxon page for Erythronium

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

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

1. Leaves uniformly green, not mottled

2. Perianth yellow; stigma entire or lobed

3. Perianth parts 15–28 mm; style, filaments yellow; stigma entire or lobes < 1 mm; flowers 1–10 ..... E. pluriflorum

3' Perianth parts 20–35 mm; style, filaments white; stigma ± entire or lobes < 1 mm or 2–4 mm; flowers 1–5

4. Flowers 1(3); style 10–15 mm; fresh perianth parts with narrow, pale zone at base; stigma lobes 2–4 mm; Klamath Ranges, North Coast Ranges ..... E. grandiflorum subsp. grandiflorum

4' Flowers 1–5; style 8–10 mm; fresh perianth parts without pale zone at base; stigma ± entire or lobes < 1 mm; c Sierra Nevada Foothills ..... E. tuolumnense

2' Perianth white with yellow base; stigma ± entire

5. Perianth parts 10–20 mm, without sac-like folds at base ..... E. purpurascens

5' Perianth parts 18–45 mm, inner with small sac-like folds at base

6. Perianth parts < 1/3 yellow; leaves 6–17 cm; flowers 1–3; Klamath Ranges, High Cascade Range ..... E. klamathense

6' Perianth parts 1/3–2/3 yellow; leaves 10–35 cm; flowers 1–8; c&s High Sierra Nevada

7. Filaments ± white, anthers yellow; s High Sierra Nevada (Tulare Co.) ..... E. pusaterii

7' Filaments ± yellow, anthers cream; c High Sierra Nevada (Tuolumne Co.) ..... E. taylorii

1' Leaves irregularly mottled with brown or white

8. Filaments >= 1 mm wide; stigma lobed

9. Perianth parts white with yellow base ..... E. oregonum

9' Perianth parts violet-pink with yellow base ..... E. revolutum

8' Filaments < 0.8 mm wide; stigma entire to lobed

10. Perianth violet to pink with dark purple base ..... E. hendersonii

10' Perianth ± white with yellow base

11. Longest style > 10 mm

12. Anthers yellow; style generally bent downward; largest leaves > 20 cm ..... E. shastense

12' Anthers white to cream; style straight; largest leaves <=15 cm

13. Peduncle when flowers > 1 branched well above leaves; bulblets 0 ..... E. californicum

13' Peduncle when flowers > 1 branched near ground; bulblets from long, slender rhizomes ..... E. multiscapideum

11' Longest style <= 10 mm

14. Anthers yellow; style ± bent; bulblets 0 or sessile ..... E. helenae

14' Anthers white to cream, pink to brown- or purple-red; style ± straight; bulblets 0 ..... E. citrinum

15. Anthers white to cream ..... var. citrinum

15' Anthers pink to brown- or purple-red ..... var. roderickii


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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