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University of California, Berkeley | |||||
Jepson Herbarium | |||||
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Jepson eFlora: Taxon page
Key to families | Table of families and genera |
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Index to accepted names and synonyms: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | |
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Family: Polemoniaceae | View Description | Dichotomous Key |
Genus: Polemonium | View Description | Dichotomous Key |
Species: | View Description | Dichotomous Key |
Higher Taxonomy
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Polemonium occidentale Greene NATIVE Habit: Perennial herb, generally glabrous; rhizome short, thin. Stem: erect, 40--100 cm, glabrous at base, glandular-hairy above. Leaf: cauline, 6--40 cm, 1--9 cm wide, reduced upward, glabrous; petioles 2--4 cm, bases not membranous, not sheathing; leaflets 15--23, 8--45 mm, 4--15 mm wide, lanceolate, entire, terminal fused to adjacent pair or not. Inflorescence: open to dense cyme, 10--35 flowered; pedicel 1--3 mm. Flower: calyx 4--5 mm, lobes > tube, acute; corolla bell-shaped, limb 10--17 mm diam, throat 3--6 mm, lobes 5--8 mm, purple to generally blue; stamens 7--9 mm, included; pistil 12--15 mm, ovary < 1 mm wide, style exserted. Fruit: 3--5 mm, 2--4 mm wide. Seed: <= 10, dark brown. Ecology: Moist areas, meadows, streambanks; Elevation: 900--3300 m. Bioregional Distribution: KR, CaRH, SN, SnBr, SNE, Wrn; Distribution Outside California: to British Columbia, Colorado. Flowering Time: Jun--Sep Note: Subspecies no longer tenable. Synonyms: Polemonium occidentale subsp. occidentale; eFlora Treatment Author: Rebecca L. Stubbs, Ruth E. Timme & Dieter H. Wilken Reference: Pritchett 1993 M.S. Thesis, San Francisco State Univ; Stubbs & Patterson 2013 Madroño 60:243--248 Unabridged Reference: Grant 1989 Bot Gaz 150:158--169; Pritchett & Patterson 1998 Madroño 45:200--209 Jepson Online Interchange Previous taxon: Polemonium micranthum Next taxon: Polemonium pulcherrimum |
Citation for this treatment: Rebecca L. Stubbs, Ruth E. Timme & Dieter H. Wilken 2014, Polemonium occidentale, in Jepson Flora Project (eds.) Jepson eFlora, Revision 2, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=38984, accessed on April 22, 2018. Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 22, 2018. More photos of Polemonium occidentale in CalPhotos
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