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PHYTOLACCACEAE POKEWEED FAMILY

John W. Thieret, final revision by Thomas J. Rosatti

[Annual to] per [to tree], generally ± glabrous.
Leaf: alternate, simple, entire, generally petioled; stipules 0 or vestigial.
Inflorescence: spike, raceme [ panicle], [ axillary or] terminal (then often lateral, ± opposite a leaf, by growth of bud axillary to that leaf); bract 1; bractlets 2.
Flower: generally bisexual, radial; sepals [4]5[10], fused at base, generally persistent; petals 0; stamens 4–many, generally on disk, free or fused at base, in 1–2 whorls or not; carpels generally 1–12, [ free] to fused, ovary generally superior, carpels = styles, chambers in number, ovules 1 per chamber, stigmas linear or thread-like.
Fruit: berry [ achene, capsule, drupe, nut, samara].
± 18 genera, 130 species: ± worldwide, especially Am tropics, subtrop. [Rogers 1985 J Arnold Arbor 66:1–37] A broad family concept adopted here, as many as 6 segregate families sometimes recognized by others. —Scientific Editor: Thomas J. Rosatti.

PHYTOLACCA
Perennial [to tree]; axes often ± red to purple.
Flower: sepals 5[8], petal-like; stamens generally 5–30; carpels 5–12, ± fused.
Fruit: berry, chambers 5–12.
Seed: 1 per chamber.
± 25 species: tropics, subtrop, especially Am. (Greek, Latin: plant, crimson dye, from fruit color)

Key to Phytolacca

P. americana L. var. americana POKEWEED
NATURALIZED
Plant to 3(7) m.
Leaf: blade 8–35 cm, 3–18 cm wide, lanceolate to ovate; petiole 1–6 cm.
Inflorescence: ± open raceme, spreading to generally drooping, (10)12–30 cm; peduncle to 15 cm; pedicel 3–13 mm.
Flower: sepals ± equal, 2.5–3.3 mm, ovate to ± round, ± white to ± pink; stamens 10, generally in 1 whorl; carpels 6–12, fused at least in basal 1/2.
Fruit: 6–11 mm diam, purple-black.
Seed: 2.5–3 mm, lenticular, black, shiny.
2n=36. Uncommon. Disturbed areas, roadsides; generally < 1000 m. California Floristic Province; native to e United States. Summer–fall {Weed listed by BAEDN and Cal-IPCI} [Online Interchange]
Unabridged note: Intermediates in e US between Phytolacca americana L. var. americana — pedicels in fruit > 6 mm, > fruit; inflorescence spreading to generally drooping, (10)12–30 cm; widespread, including CA — and Phytolacca americana L. var. rigida (Small) Caulkins & R.W. Wyatt — pedicels in fruit < 6(7) mm, < fruit; inflorescence erect, 6–9(13.5) cm; VA to TX; various plant parts sources of dye, food, medicine, yet poisonous to humans, other animals when ingested without careful, experienced preparation.

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occursRed area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon;
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 have georeferencing or identification issues.
map of distribution 1

Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
Map made in collaboration with Scott Loarie. 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 Manual flowering time.