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APIACEAE (Umbelliferae) CARROT FAMILY

Lincoln Constance & Margriet Wetherwax, except as noted

Annual to perennial herb [shrub, tree], generally from taproot. Stem: generally ± scapose, generally ribbed, hollow. Leaf: basal and generally cauline, generally alternate; stipules generally 0; petiole base generally sheathing stem; blade generally much dissected, occasionally compound. Inflorescence: umbel or head, simple or compound, generally peduncled; bracts present in involucres or 0; bractlets generally present in "involucels". Flower: many, small, generally bisexual (or some staminate), generally radial (or outer bilateral); calyx 0 or lobes 5, small; petals 5, free, generally ovate or spoon-shaped, generally incurved at tips, generally ± ephemeral; stamens 5; pistil 1, ovary inferior, 2-chambered, generally with a ± conic, persistent projection or platform at tip subtending 2 free styles. Fruit: 2 dry, 1-seeded halves (= mericarps), separating from each other but generally ± persistent to central axis; ribs on halves 5, 2 marginal, 3 to back; oil tubes 1–several per interval between ribs.
300 genera, 3000 species: ± worldwide, especially temperate; many cultivated for food or spice (e.g., Carum, caraway; Daucus; Petroselinum); Bupleurum lancifolium Hornem. is historical garden weed; some toxic (e.g., Conium). Mature fruit generally critical in identification, shape given in outline. Hydrocotyle moved to Araliaceae. Petroselinum crispum (Mill.) A.W. Hill is a waif. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.

Key to Apiaceae

OREONANA
Perennial herb, taprooted, cushion-forming, generally coarsely hairy or tomentose. Stem: 0. Leaf: basal-most bladeless sheaths; distal blades narrowly ovate to round, pinnately or ternately dissected, segments lanceolate or oblong. Inflorescence: umbels compound, head-like, spheric or hemispheric; peduncles spreading; bracts 0; involucel 1-sided, bractlets fused to ± free; rays few to many, spreading to spreading-ascending; fertile pedicels short, sterile > fruit. Flower: bisexual, staminate, or sterile; calyx lobes conspicuous or not; petals spoon-shaped or oblanceolate, generally white or yellow, or purple in age, early-deciduous, tips narrowed; ovary tip projection 0. Fruit: ovate to round, ± compressed side-to-side to cylindric, hairy; ribs ± equal, thread-like; oil tubes several per rib-interval; fruit axis divided to base. Seed: face deeply grooved.
3 species: high mountains of California Floristic Province. (Greek: mountain dwarf) [Shevock & Norris 1981 Fremontia 9:22–25]

Key to Oreonana

O. vestita (S. Watson) Jeps. WOOLLY MOUNTAIN-PARSLEY
NATIVE
Plant 4–15 cm, white-tomentose. Leaf: bladeless sheaths 1.5–3 cm; petiole 2–10 cm; blade 1.5–5 cm, ovate to round, segments 3–10 mm, oblong. Inflorescence: umbels 2–5 cm, hemispheric, appearing ± with leaf blades; peduncles 4–12 cm, spreading; bractlets ± free; rays 10–25, 1–2 cm, not scarious-winged, not webbed; sterile pedicels 10–15 mm. Flower: bisexual or staminate; calyx lobes inconspicuous, obscured by hairs; corolla yellow or maroon; anthers yellow. Fruit: 5–6 mm, 3–4 mm wide, tomentose.
2n=22. Ridge tops; 1670–3500 m. San Gabriel Mountains, San Bernardino Mountains. Mar–Jul [Online Interchange] {CNPS list}

Previous taxon: Oreonana purpurascens
Next taxon: Orogenia

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 22 2014
Citation for this treatment: [Author of taxon treatment] 2013. Oreonana, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=35433, accessed on Nov 22 2014

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click for enlargement Oreonana vestita
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2006 Michael Charters

Geographic subdivisions indicated for the distribution of Oreonana vestita 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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map of distribution 1
(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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.