|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 shrub [tree]. Stem: nodes swollen or not. Leaf: simple, basal or cauline, generally alternate; ocreae present or 0, generally scarious, persistent or not. Inflorescence: flower clusters in axillary to terminal cyme-, panicle-, raceme-, spike-, umbel- or head-like arrangements, entire inflorescence or main inflorescence branches generally subtended by bracts ("inflorescence bracts"); peduncles present or 0; flower clusters in Eriogoneae-Eriogonoideae subtended by involucre of >= 1 free or ± fused, sometimes awn-tipped bracts ("involucre bracts") or, in Polygonoideae and rarely in Eriogonoideae, not (if bracts completely fused, involucre "tubular"); pedicels in Eriogoneae each often subtended by 2 free, transparent, linear bractlets or in Polygonoideae all subtended by 2+ fused, membranous, wide bractlets. Flower: generally bisexual, small, 1–200 per node; perianth parts 2–6, generally in 2 whorls, free or basally fused, generally petal-like, often ± concave adaxially, often darker at midvein, often turning ± red or ± brown in age; stamens 3 or 6–9 in 2 whorls; ovary superior, 1-chambered, ovule 1, styles 1–3. Fruit: achenes, included in or exserted from perianth, generally 3-angled, ovoid or elliptic, generally glabrous.
48 genera, ± 1200 species: worldwide, especially northern temperate; some cultivated for food (Coccoloba, sea-grape; Fagopyrum, Rheum, Rumex) or ornamental (Antigonon, lovechain; Coccoloba; Muehlenbeckia; Persicaria; Polygonum), a few timbered (Coccoloba; Triplaris). Several (Emex; Fallopia; Persicaria; Polygonum; Rumex) are weeds. [Freeman & Reveal 2005 FNANM 5:216–601] Treatment of genera in Eriogonoideae based on monographic work of James L. Reveal. Involucre number throughout is number (1–many) per ultimate grouping, at tips of ultimate branches; flower number is per flower cluster or involucre, unless otherwise stated. Fagopyrum esculentum Moench not naturalized, considered an historical waif (or garden weed ± presently), therefore not treated. —Scientific Editor: Thomas J. Rosatti.
Key to Polygonaceae
Annual, perennial herb, rhizomed or stoloned. Stem: prostrate to erect, ribbed or ± so or not, glabrous or hairy, generally with adventitious roots. Leaf: cauline, alternate, petioled or not; ocrea papery, rarely ± leaf-like, opaque, persistent or disintegrating, glabrous to variously hairy; blade lanceolate or ovate to hastate or sagittate, entire. Inflorescence: axillary, terminal, generally spike-like; flowers 1–14; peduncle present, pedicels present [or 0]. Flower: bisexual or functionally ± unisexual, base not stalk-like; perianth not or ± enlarging, bell-shaped (urn-shaped, rotate), glabrous, gland-dotted or not, green-white, white, pink, or red; perianth parts 4–5, fused 1/4–2/3, outer 2 > inner 2 or 3; stamens 5–8, filaments free, cylindric, thread-like, glabrous, outer fused to perianth tube or not, anthers elliptic to ovate, yellow, pink, or red; styles 2–3, erect to reflexed, free or fused, stigmas head-like. Fruit: included or exserted, brown or dark-brown to black, not winged, discoid, lens-shaped, or 3-angled. Seed: embryo curved.Key to Persicaria
± 100 species: ± worldwide. (Latin: peach, pertaining to; from resemblance of leaves of some species to those of peach)
Unabridged etymology: (Latin: persica, peach, aria, pertaining to; from resemblance of leaves of some species to those of peach)
Annual, perennial herb, generally rhizomed. Stem: ascending to erect, 15–100 cm, glabrous, gland-dotted. Leaf: ocrea (5)9–18 mm, cylindric, brown, margins truncate, ciliate, bristles 2–11 mm, surface glabrous or strigose, gland-dotted; petiole 0–1 cm; blade 5–10(15) cm, 0.6–2.4 cm wide, lanceolate to lance-ovate or sub-diamond-shaped, glabrous or scabrous on midveins, gland-dotted, adaxial dark blotch 0, base tapered or wedge-shaped, tip acute to acuminate. Inflorescence: axillary, terminal, generally erect, interrupted, 50–200 mm, 4–8 mm wide; peduncle 30–60 mm, glabrous, gland-dotted; bractlets generally not overlapped; pedicels ascending, 1–4 mm; flowers 2–6. Flower: perianth 3–3.5 mm, bell-shaped, ± enlarging, gland-dotted, generally ± green to white, lobes 5, margins generally white, veins prominent or not, not anchor-shaped, tips obtuse to rounded; stamens 6–8, included, anthers pink or red; styles 2–3, fused basally. Fruit: included or exserted, 2–3.2 mm, 1.5–2.2 mm wide, generally 3-angled (lens-shaped), brown-black, shiny, smooth.
2n=44. Shallow water, shores, marshes, floodplain forest; < 1500 m. California; North America to South America. [Polygonum punctatum Elliott] Highly variable but named varieties not distinct. Confused with Persicaria hydropiper. Jun–Nov [Online Interchange]
Previous taxon: Persicaria pensylvanica
Next taxon: Persicaria wallichii
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. Persicaria, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=37303, 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.
|Bioregions in which Persicaria punctata 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