|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; roots clustered, fibrous or ± tuberous. Stem: erect or ascending, branched. Leaf: blade oblong to ovate, 1-pinnate, occasionally 2-pinnate when submerged, leaflets distinct, serrate, irregularly cut to pinnately lobed. Inflorescence: umbels compound, generally opposite a leaf; bracts, bractlets leaf-like, generally reflexed, conspicuous; rays, pedicels many, spreading-ascending. Flower: occasionally ± bilateral; calyx lobes 0 or minute; petals wide, white, narrowed at tips, outer ± > others. Fruit: ovate to round, ± compressed side-to-side; ribs prominent, ± equal, corky; oil tubes 1–3 per rib-interval; fruit axis entire or divided to base, adhering to fruit halves or not. Seed: face flat.
± 10 species: North America, Eurasia, Africa. (Greek: for an aquatic member of family)
Plant 6–12 dm, stout. Leaf: petiole 1–8 dm, segmented; blade 6–25 cm, 7–18 cm wide, leaflets 1–4 cm, linear or lanceolate, serrate, irregularly cut. Inflorescence: peduncle 4–10 cm; bracts 6–10, 3–15 mm, linear or lanceolate, acute, entire to irregularly cut; bractlets 4–8, 1–3 mm, lance-linear; rays 10–20, 1.5–3 cm, ± equal, slender; pedicels 3–5 mm. Fruit: 2–3 mm wide.
2n=12. Swamps, marshes, streambanks; < 2350 m. High Cascade Range, c High Sierra Nevada, deltaic Great Central Valley, Great Basin Floristic Province; to British Columbia, eastern North America; eastern Asia. Jul–Aug [Online Interchange]
Previous taxon: Sium
Next taxon: Spermolepis
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 22 2014
Citation for this treatment: [Author of taxon treatment] 2013. Sium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=44763, accessed on Oct 22 2014
Copyright © 2014 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
© 2006 Louis-M. Landry
|Geographic subdivisions indicated for the distribution of Sium suave|| 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
(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.
View all CCH records
CCH collections by month