Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Lincoln Constance

Annual, biennial, perennial herb (rarely shrub, tree), often from taproot
Stem often ± scapose, generally ribbed, hollow
Leaves basal and generally some cauline, generally alternate; stipules generally 0; petiole base generally sheathing stem; blade generally much dissected, sometimes compound
Inflorescence: umbel or head, simple or compound, generally peduncled; bracts present (in involucres) or not; bractlets generally present (in involucels)
Flowers many, small, generally bisexual (or some staminate), generally radial (or outer bilateral); calyx 0 or lobes 5, small, atop ovary; 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 on top subtending 2 free styles
Fruit: 2 dry, 1-seeded halves that separate from each other but generally remain attached for some time to a central axis; ribs on each half 5, 2 marginal and 3 on back; oil tubes 1–several per interval between ribs
Genera in family: 300 genera, 3,000 species: ± worldwide, especially temp; many cultivated for food or spice (e.g., Carum, caraway; Daucus; Petroselinum); some highly toxic (e.g., Conium). Underground structures here called roots, but true nature remains problematic. Mature fruit generally critical in identification; shapes generally given in outline, followed by shape in X -section of 2 fruit halves together.


Perennial, taprooted
Stem erect, leafy, hollow
Leaves: petioles generally inflated; cauline often bladeless; blades compound, rarely dissected, leaflets generally wide, distinct, when leaf dissected, segments narrow, connected
Inflorescence: umbels compound, peduncled; bracts 0; bractlets 0 or many and conspicuous; rays, pedicels many, spreading-ascending or ascending
Flower: calyx lobes 0 or minute; petals wide, white, pink, red, or purple
Fruit oblong to round, generally very compressed front-to-back (rarely slightly so or cylindric), glabrous to hairy; ribs generally unequal, winged but marginal generally wider than others; oil tubes per rib-interval 1–several, adhering to fruit wall or rarely to seed; fruit axis divided to base
Seed: face flat
Species in genus: 50–60 species: temp North America, Asia
Etymology: (Latin: angelic, for cordial and medicinal properties)
Reference: [DiTomaso 1984 Madroño 31:69–79]


A. arguta Nutt.


Plant 1–2 m, generally glabrous
Leaf < 1 m diam, ovate-triangular, 2–3-ternate-pinnate; leaflets 6–9 cm, lanceolate to elliptic, acute, sharply serrate
Inflorescence generally glabrous; bracts, bractlets generally 0; rays 20–60, 2–10 cm, rays, pedicels webbed at base
Flower: petals, ovary glabrous
Fruit 8–9 mm, oblong to ovate
Chromosomes: 2n=22
Ecology: UNCOMMON. Coniferous forests
Elevation: 200–2000 m.
Bioregional distribution: Klamath Ranges
Distribution outside California: to British Columbia, Montana, Utah
Horticultural information: DRN: 4, 5, 6, 17 &IRR: 1, 2, 7, 14, 15, 16.

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bioregional map for ANGELICA%20arguta being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Angelica arguta
Retrieve dichotomous key for Angelica
Overlay Consortium of California Herbaria specimen data by county on this map
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