|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 |
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
Perennial herb, glabrous, generally glaucous; roots tuberous, single or clustered, or clustered-fibrous. Stem: erect, branched. Leaf: blade lanceolate to triangular-ovate, generally 1–2-ternate-pinnate or 1–2-pinnately or ternate-pinnately dissected, leaflets or segments generally linear to lance-linear. Inflorescence: umbels compound; bracts 0–many, conspicuous and reflexed or not; bractlets several to many, narrow, ± scarious; rays, pedicels few to many, generally spreading-ascending; 2° umbels generally convex distally. Flower: calyx lobes evident; petals generally obovate, white, tips narrowed. Fruit: linear-oblong, ± compressed side-to-side or not at all, glabrous; ribs ± equal, thread-like to prominent, not winged; oil tubes 1–several per rib-interval; fruit axis divided to base. Seed: face flat to grooved.Key to Perideridia
± 12 species: generally western America. (Greek: around the neck, from involucre) [Chuang & Constance 1969 Univ Calif Publ Bot 55:1–74] Roots, basal leaves needed for identification.
Plant 1–9 dm, green to glaucous; roots tuberous, 2–6-clustered, 0.5–3 cm, fusiform to spheric. Leaf: basal petiole 2–10 cm; basal blade 3–30 cm, ± ovate, 1–2-ternate-pinnate, leaflets 0.5–6 cm, linear or oblong, generally entire; cauline leaves 1–2-pinnate. Inflorescence: peduncle 3–20 cm; bracts (0–2)6–10, bristle-like; bractlets 4–8, 2–7 mm, lance-linear; rays 10–29, 1–4.5 cm, ± equal in fruit, spreading-ascending; pedicels 2–6 mm; 2° umbels 10–29-flowered. Flower: petals 1-veined; styles 1–2 mm. Fruit: 3–6 mm, oblong; ribs thread-like; oil tube 1 per rib-interval.
2n=16,18,20,26. Open flats or slopes, pine/oak woodland; 60–2100 m. Klamath Ranges, North Coast Ranges, High Cascade Range, San Francisco Bay Area, Inner South Coast Ranges, Modoc Plateau; Oregon. Highly variable. Jul–Aug [Online Interchange]
Previous taxon: Perideridia leptocarpa
Next taxon: Perideridia parishii
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 7 2014
Citation for this treatment: [Author of taxon treatment] 2012. Perideridia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=37256, accessed on Mar 7 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
© 2011 Neal Kramer
|Bioregions in which Perideridia oregana 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