Jepson eFlora
Key to families | Table of families and genera

Key to Erythronium

View taxon page for Erythronium

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. Style 10–15 mm; anthers white to cream

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

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

11' Style 4–10 mm; anthers white, cream, yellow, or pink to red tinged

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

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

14. Anthers white to cream ..... var. citrinum

14' 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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