|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 from taproot or clustered roots. Stem: stout, erect, generally branched, hollow. Leaf: blades oblong to round, ternately, pinnately, or palmately compound (simple), leaflets large, lobed or serrate; distal-most cauline generally reduced to large sheaths. Inflorescence: umbels compound, large, margins generally sterile; bracts 0–few, generally deciduous; bractlets generally present, persistent; rays, pedicels many, spreading-ascending. Flower: marginal bilateral, outer petals > others, 2-lobed; calyx lobes generally 0; petals wide, white, ± yellow. Fruit: oblong-ovate to round or obcordate, compressed front-to-back; ribs unequal, marginal thin-winged, veined near outer margin, others thread-like; oil tubes 1–2 per rib-interval, unequal in length; fruit axis divided to base. Seed: face flat.
± 80 species: Eurasia, eastern Africa, 1 in North America. (Hercules, presumably from large stature of some species)
Plant 1–3 m, stout, tomentose, strong-scented. Leaf: round to reniform; petioles 1–4 dm, widely sheathing, distal sheaths enlarged, bladeless; blades 2–5 dm wide, ternate, leaflets 1–4 dm wide, ovate to round, cordate, lobed, coarsely serrate. Inflorescence: tomentose or long-hairy; peduncle 5–20 cm; rays 15–30, 5–10 cm, unequal; pedicels 8–20 mm. Flower: petals obovate, white. Fruit: 8–12 mm, obovate to obcordate, ± hairy.
2n=22. Moist places, wooded or open; < 2900 m. California Floristic Province, Great Basin Floristic Province; to Alaska, eastern United States, Arizona. [Heracleum lanatum Michx.] Only native Apiaceae sp. found from eastern to western North America. Apr–Jul [Online Interchange]
Unabridged note: Relationship to some Eurasian taxa unclear.
Previous taxon: Heracleum
Next taxon: Ligusticum
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. Heracleum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=27996, 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
Charles Webber © 1998 California Academy of Sciences
|Bioregions in which Heracleum maximum 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