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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual, perennial herb [vine, shrub, tree]. Leaf: compound (palmate [pinnate, or leaflet 1]), alternate, often ± basal in rosettes or at stem or rhizome tips in clusters, generally petioled, stipules generally 0, leaflets generally sessile. Inflorescence: cyme, umbel- or raceme-like or not, or flowers 1, generally in axils; peduncle bracted. Flower: generally bisexual, radial; sepals 5, free or fused at base; petals 5, free or fused above base; stamens 10, fused below, of 2 lengths; pistil 1, ovary superior, chambers 5, placentas axile, styles 5, generally ± free. Fruit: generally capsule, loculicidal. Seed: generally arilled.
5 genera, number of species uncertain: especially temperate. [Matthews & Endress 2003 Bot J Linn Soc 140:321–381] Often heterostylous. —Scientific Editor: Thomas J. Rosatti.
Roots fibrous or woody; bulbs, tubers, or rhizomes often present. Stem: ± 0 or not. Leaf: stipules 0 or small; leaflets 3, generally ± obcordate [not], generally entire, generally green. Flower: petals clawed; styles erect or curved. Fruit: cylindric to spheric, explosively dehiscent. Seed: flat, often ridged; aril translucent.Key to Oxalis
500–950 species: especially temperate. (Greek: sour, from acidic taste) [Lourteig 2000 Bradea 7:201–629] Taxonomy difficult, needs study; generally heterostylous; many (especially aliens in California except Oxalis micrantha) ornamental; some noxious weeds; oxalates may be TOXIC to livestock; Oxalis latifolia Kunth possibly naturalized in Central Coast (Keil 30389, just northern of San Simeon), differs from Oxalis purpurea in having flowers in umbel-like cyme; Oxalis hirta L. an historical waif (no recent collections), excluded.
Unabridged references: [Eiten 1963 Amer Midl Naturalist 69:257–309; Lourteig 1975 Phytologia 42:57–1979; Turner 1994 Phytologia 77:1–7]
Perennial herb; rhizome creeping, fleshy, scaly; bulbs 0. Stem: ± 0. Leaf: clustered at rhizome tips; petiole < 30 cm, hairy; leaflets < 4 cm. Inflorescence: umbel-like, 3–9-flowered; peduncle < 25 cm. Flower: sepals < 5 mm, lanceolate; petals < 1.3 cm, white or ± pink. Fruit: < 3 cm, linear.
Dense conifer forest; < 1900 m. North Coast, Klamath Ranges, Outer North Coast Ranges; to Washington. May–Aug [Online Interchange]
Previous taxon: Oxalis suksdorfii
Next taxon: Paeoniaceae
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 23 2014
Citation for this treatment: [Author of taxon treatment] 2013. Oxalis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=35669, accessed on Jul 23 2014
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