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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Perennial herb, shrub, tree. Stem: bark often peeling distinctively. Leaf: simple or 0, generally cauline, alternate, opposite (whorled), evergreen or deciduous, often leathery, petioled or not; stipules 0. Inflorescence: raceme, panicle, cyme, or flowers 1, terminal or axillary, generally bracted; pedicel often with 2 bractlets. Flower: generally bisexual, generally radial, bell-shaped, cylindric, or urn-shaped; sepals generally (0)4–5, generally free; petals generally (0)4–5, free or fused; stamens (2–5)8–10, free, filaments rarely appendaged, anthers dehiscing by pores or slits, awns 0 or 2(4), seemingly abaxial, reduced or elongate, generally curved; nectary generally present at ovary base, generally disk-like; ovary superior or inferior, chambers generally 1–5, placentas axile or parietal, ovules 1–many per chamber, style 1, stigma head- to funnel-like or lobed. Fruit: capsule, drupe, berry. Seed: generally many, winged or not.
± 100 genera, 3000 species: generally worldwide except deserts; some cultivated, especially Arbutus, Arctostaphylos, Rhododendron, Vaccinium. [Kron et al. 2002 Bot Rev 68:335–423] Monophyletic only if Empetraceae included, as treated here. Ledum included in Rhododendron. Non-green plants obtain nutrition from green plants through fungal intermediates. —Scientific Editors: Gary D. Wallace, Thomas J. Rosatti.
Key to Ericaceae
Perennial subshrub, evergreen, rhizomed. Leaf: ± basal, reniform, ovate, ± round, elliptic, or obovate, ± entire to crenate or dentate, generally petioled (if vestigial, lanceolate to deltate, ± not green, sessile). Inflorescence: raceme, ± erect, not 1-sided, elongate; scape smooth, glabrous, bracts generally 1–several, deltate or lanceolate; flower bract 1 per flower, < to >> pedicel. Flower: radial, ± closed or subradial or bilateral, ± open, parts in 5s, free; petals without tubercles, upper 2 generally forming hood over upturned stamens; stamens 10, filaments generally widened at base, smooth, glabrous, anther generally with tube-like constrictions subtending pores; nectary 0; ovary superior, style ± included and straight or generally exserted and downcurved, stigma peltate, with 5 spreading lobes above a prominent, reflexed collar or generally not peltate, generally with 5 ± erect lobes projecting beyond a delicate, reflexed collar. Fruit: capsule, pendent; valves opening base to tip, margins fibrous. Seed: ± 1000.Key to Pyrola
± 30 species: generally circumboreal, high mountains of Central America, Sumatra. (Latin: little pear, ± from leaf shape) [Jolles & Wolfe 2012 Syst Bot 37:468–477; Jolles & Wilson 2014 Taxon 63(4):789–800] Pyrola aphylla, Pyrola dentata newly recognized, added as native; Pyrola crypta newly described, added as native.
Leaf: < 20 cm, abaxially often purple, adaxially ± shiny; petiole ± = blade. Inflorescence: < 6 dm including scape; flowers ± 10; flower bract generally >> pedicel, broadly lanceolate, acuminate. Flower: subradial to bilateral, ± open; sepals deltate to lanceolate, acute to acuminate; petals 4.8–9 mm, ovate to obovate, pink, pink-purple, or deep red; anthers 2–3.5 mm; style 6–8 mm. [Online Interchange]
Unabridged references: [Haber 1983 Syst Bot 8:277–298]
Leaf: 3–13 cm, round to reniform; entire to ± crenate. Inflorescence: scape 1–3.5 dm; flower bract 1–1.5 × pedicel. Flower: sepals 2–3.5 mm, deltate to lanceolate; petals 4.8–8.6 mm; anthers 2–3 mm.
2n=46. Common. Moist forest, swamps, bogs, streambanks; 30–2800 m. Klamath Ranges, High Cascade Range, High Sierra Nevada, San Bernardino Mountains, Modoc Plateau; to southern Alaska, Montana, eastern North America; eastern Asia. Jun–Jul [Online Interchange]
Unabridged references: [Knaben & Engelskjøn 1968 Arb Univ Bergen, Mat Naturvitensk, Ser 1967:1–71; Haber 1983 Syst Bot 8:277–298]
Previous taxon: Pyrola asarifolia
Next taxon: Pyrola asarifolia subsp. bracteata
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Feb 28 2015
Citation for this treatment: [Author of taxon treatment] 2013. Pyrola, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=52590, accessed on Feb 28 2015
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|Geographic subdivisions indicated for the distribution of Pyrola asarifolia subsp. asarifolia|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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