Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Polemonium

View taxon page for Polemonium

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

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; inflorescencedense, rounded 

3. Style  base generally not membranous ..... P. eximium

3' Style slightly or much ; petiole base membranous

4. Calyx  pistil 5–10 mm, style slightly exserted;  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 ; inflorescence various but not head-like

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

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

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

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

7. Terminal  ± 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


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

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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