|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Indexes to all 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 |
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 8–10, free, filaments rarely appendaged, anthers awned or not, dehiscing by pores or slits; 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
Shrub to small tree, prostrate to erect. Stem: old stems generally ± red, smooth, bark generally thin, peeling, or generally ± gray or red-gray, shredding and rough; burls at base, woody, sprouting after fire, or generally 0; twig hairs 0 or generally ± like those on inflorescence axes, bracts. Leaf: alternate, evergreen; blade flat to convex, base lobed to wedge-shaped, clasping stem or not, margins generally flat, surfaces with stomata generally both abaxially, adaxially, alike in color, hairiness, less often only or fewer abaxially, generally differing in color, hairiness. Inflorescence: ± raceme (generally 0–1-branched) or panicle (generally 2–10-branched), terminal, nascent inflorescence present following stem growth, generally late spring through winter, remaining dormant 4–6 months prior to flower (except in Arctostaphylos pringlei subsp. drupacea); branches 0 or raceme-like; flower bracts leaf-like, generally flat, or scale-like, often folded, keeled, tips rounded to acute to awl-shaped. Flower: radial; sepals 5(4), free, persistent; corolla conic to urn-shaped, lobes in number = sepals, short, rounded, curved back, white to pink; stamens 2 × number of sepals, included, filaments swollen, generally hairy at base, anthers dark red, with 2 curved back dorsal awns; ovary on disk, 4–10-chambered, ovule 1 per chamber. Fruit: drupe, generally ± depressed-spheric to spheric; flesh generally thick, ± mealy, occasionally 0; stones 2–10, free, fused, or some fused.Key to Arctostaphylos
± 62 species: North America (especially California) to Central America, Eurasia. (Greek: bear berries) [Keeley 1997 Madroño 44:109–111; Parker et al. 2007 Madroño 54:148–155]
Unabridged note: Rosatti (1986 Syst Bot 12:61–77) showed that in Arctostaphylos uva-ursi little to none of the variation in hairs (including length, glandularity) is genetically based.
Shrub, small tree, erect, (1)2–5 m. Stem: twig generally white-tomentose, glandular or not. Leaf: spreading; petiole 4–10 mm; blade 4–6 cm, 2–3 cm wide, lanceolate to ovate, flat, dark green, dull, sparsely glandular-hairy, ± papillate, scabrous, base wedge-shaped to ± rounded, tip acute, margin entire. Inflorescence: panicle, 3–8-branched; nascent inflorescence pendent, axis 1.5–2.5 cm, > 1 mm wide; bracts leaf-like, green, persistent, stiff, densely short- and long-white-nonglandular-hairy, occasionally glandular-hairy; pedicel 2–4 mm, glandular-hairy. Flower: ovary densely white-nonglandular-hairy, sparsely glandular. Fruit: 8–11 mm wide, depressed-spheric, sparsely nonglandular-hairy; stones free.
2n=26. Rocky coastal uplands, maritime chaparral, conifer forest; < 800 m. North Coast, w Klamath Ranges, Outer North Coast Ranges; to British Columbia. [Arctostaphylos columbiana f. tracyi (Eastw.) P.V. Wells] Arctostaphylos ×media Greene (prostrate to mounded shrub < 1 m; inflorescence ± raceme, 0–1-branched) presumed hybrid with Arctostaphylos uva-ursi. Mar–May [Online Interchange]
Previous taxon: Arctostaphylos catalinae
Next taxon: Arctostaphylos confertiflora
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 11 2014
Citation for this treatment: [Author of taxon treatment] 2012. Arctostaphylos, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=13918, accessed on Mar 11 2014
Copyright © 2013 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.
See CalPhotos for additional images
© 2009 Neal Kramer
|Bioregions in which Arctostaphylos columbiana occurs|| 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.
READ ABOUT YELLOW FLAGS
|View elevation by latitude chart|| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records
CCH collections by month