Bryonia alba

Linnaeus

Sp. Pl. 2: 1012. 1753.

Common names: White bryony
IllustratedIntroduced
Treatment appears in FNA Volume 6. Treatment on page 12. Mentioned on page 11.

Vines monoecious, high-climbing or forming dense mats over vegetation, to 7 m. Leaves: petiole 1.5–3.5 cm; blade hastate to 5-angular, palmately 3–5-lobed, 3–8 (–15) × 2–6 (–8) cm, lobes ovate to deltate or triangular, central lobe largest, base deeply cordate, margins coarsely dentate to remotely dentate or serrate, surfaces hispidulous to scabrous or pustulate, not white-sericeous abaxially. Flowers: calyx campanulate; sepals recurving, whitish, green-veined, lanceolate, 3.5–5 mm; petals yellowish to greenish white, oblong-ovate, 3–7 mm; stigmas glabrous. Fruits 4–6 (–10), black, 0.6–1 cm, peduncles 2–3 [–14] cm. Seeds 2–6 (–8), 4–5 × 2 mm. 2n = 20.


Phenology: Flowering Jun–Aug.
Habitat: Sagebrush, riparian zones, thickets, stream terraces, irrigation ditches, seeps, moist slopes, draws, lawns, roadsides, fencerows, picnic areas, disturbed sites
Elevation: 100–1800 m

Distribution

V6 11-distribution-map.jpg

Introduced; Idaho, Mont., N.J., Utah, Wash., Europe, Asia, also in n, e Europe (Czech Republic), e Europe (Denmark), e Europe (Finland), e Europe (Lithuania), e Europe (Poland), Pacific Islands (Hawaii)

Discussion

Bryonia alba has been naturalized in the United States since the 1880s and may have been introduced through commercial seed trade. A tincture from the roots has been widely used as an effective diuretic. The seeds are dispersed by birds.

As noted by C. Jeffrey (1969), Bryonia alba is monoecious in northern Europe, as it seems consistently to be in the flora area; it is commonly dioecious in the southeastern part of its native range (Macedonia to Turkey and southwestern Russia).

Measurements from relatively few collections suggest that peduncles of Bryonia alba are longer in Europe (4–14 cm) than in North America (2–3 cm).

Lower Taxa

None.
... more about "Bryonia alba"
distinct +  and connate +
Guy L. Nesom +
Linnaeus +
cordate +
8 cm80 mm <br />0.08 m <br /> (15 cm150 mm <br />0.15 m <br />) +
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
3-5-lobed;hastate;5-angular +
2cm;6cm +
campanulate +
White bryony +
Idaho +, Mont. +, N.J. +, Utah +, Wash. +, Europe +, Asia +, also in n +, e Europe (Czech Republic) +, e Europe (Denmark) +, e Europe (Finland) +, e Europe (Lithuania) +, e Europe (Poland) +  and Pacific Islands (Hawaii) +
100–1800 m +
furrowed +  and echinate +
dehiscent +  and indehiscent +
bristly +, smooth +, hairy +  and glabrous +
tuberculate +  and muricate +
fleshy +  and hard +
pistillate +  and staminate +
indehiscent +
globose +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Sagebrush, riparian zones, thickets, stream terraces, irrigation ditches, seeps, moist slopes, draws, lawns, roadsides, fencerows, picnic areas, disturbed sites +
perennial +
dioecious +  and monoecious +
umbellate;subumbellate +
solitary +, corymbose +, fasciculate +, racemose +  and paniculate +
petiolate +, estipulate +  and simple +
ovate;deltate or triangular +
serrate +, coarsely dentate +  and remotely dentate +
thickened-corrugated +
not differentiated +
ovoid;broadly ellipsoid +
3 cm30 mm <br />0.03 m <br /> (14 cm140 mm <br />0.14 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
induplicate-valvate +  and imbricate +
distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Flowering Jun–Aug. +
novak1995a +  and novak2000a +
not arillate +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
compressed +, oblong +  and ovoid +
2 cm20 mm <br />0.02 m <br /> (?) +
green-veined +
lanceolate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Illustrated +  and Introduced +
distinct +  and connate +
3 (?) +, 2 (?) +  and 5 (?) +
climbing +  and procumbent +
sprawling +  and prostrate +
slender-columnar +
white-sericeous +  and hispidulous +
pustulate +  and scabrous +
Bryonia alba +
species +
distinct +
vine +, forming dense mats +  and high-climbing +