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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.


Annual, perennial herb, vine or not. Stem: erect, trailing, or twining, glabrous or hairy, ribs 0. Leaf: cauline, alternate, petioled; ocrea persistent or not, cylindric, papery, opaque; blade broad-ovate to triangular, entire. Inflorescence: axillary, terminal, spike-, panicle-, or raceme-like; flowers 3–7; peduncle present or 0. Flower: bisexual or pistillate (1 kind per plant); perianth generally enlarging, bell-shaped, pale green or white to pink, glabrous, base stalk-like, parts 5, fused basally or ± completely, of 2 kinds, outer 3 generally winged, > inner 2; stamens 6–8, filaments free, wider basally, glabrous or hairy, anthers yellow to pink or red, ovate to elliptic; styles 3, spreading, fused basally or ± completely, stigmas head-like, fringed, or peltate. Fruit: included or exserted, 3-angled, brown to black. Seed: embryo straight.
12 species: America, Europe, Asia, Africa. (Gabriele Fallopio, Italian botanist, 1523–1562)
Unabridged etymology: (for Gabriele Fallopio, 1523–1562, Italian professor of anatomy, botany, and surgery, for whom Fallopian tubes also named)

Key to Fallopia

1. Rhizomes present, perennial herb; stems erect; stigmas fringed

2. Stem generally 1–2 m; leaf blade 6–13 cm, 5–10 cm wide, base truncate ..... F. japonica

2' Stem 2–4(5) m; leaf blade 15–30(40) cm, 7–25 cm wide, base cordate ..... F. sachalinensis

1' Rhizomes 0; annual, perennial herb; stems trailing, twining, or climbing; stigmas head-like or peltate

3. Stem woody; inflorescence panicle-like ..... F. baldschuanica

3' Stem not woody; inflorescence spike-like ..... F. convolvulus


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [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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