Jepson eFlora
Key to families | Table of families and genera

Key to Polemonium

View taxon page for Polemonium

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

1. Annual; flowers 1–2 in axils ..... P. micranthum

1' Perennial herb; flowers generally clustered at stem tips

2. Leaflets 2–5-lobed; inflorescence a dense, rounded head

3. Style included; petiole base generally not membranous ..... P. eximium

3' Style slightly or much exserted; petiole base membranous

4. Calyx lobes acuminate; pistil 5–10 mm, style slightly exserted; petioles 1–5 cm ..... P. chartaceum

4' Calyx lobes rounded; pistil 10.3–13.8 mm, style much exserted; petioles 0.5–1 cm ..... P. eddyense

2' Leaflets entire; inflorescence various but not head-like

5. Plant not cespitose, stems generally solitary, erect, 40–100 cm; leaves cauline

6. Corolla lobes generally white to pale pink to rarely purple (often purple on herbarium specimens); leaflets elliptic ..... P. carneum

6' Corolla lobes purple to generally blue; leaflets lanceolate ..... P. occidentale

5' Plant cespitose, stems clumped or tufted, decumbent to erect, 5–25 cm; leaves ± basal

7. Terminal leaflet ± fused with adjacent pair; corolla limb 7–15 mm diam; dry, open to shaded areas in montane forest ..... P. californicum

7' Terminal leaflet generally free from adjacent pair; corolla limb 5–11 mm diam; subalpine to alpine talus ..... P. pulcherrimum

8. Corolla lobes blue to purple; herbage sparsely glandular-hairy ..... var. pulcherrimum

8' Corolla lobes white, generally with pink veins or tinge (individual flowers or plants rarely without pink); herbage densely glandular-hairy ..... var. shastense


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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