Parietaria judaica

Linnaeus

Fl. Palaest., 32. 1756.

Introduced
Treatment appears in FNA Volume 3.

Herbs, perennial from crown, 1-8dm. Stems ascending, erect, or decumbent. Leaf-blades narrowly to broadly elliptic, lance-elliptic, or ovate, 1.3-9 × 0.8-4.5 cm, base attenuate, cuneate, or broadly rounded, apex abruptly acuminate to long-attenuate. Flowers: involucral-bracts 1.5-2.5 mm; tepals ca. 2-3.5 mm, longer than bracts. Achenes dark-brown, symmetric, 1-1.2 × 0.6-0.9 mm, apex acute, mucro absent or minute; stipe centered, on cylindric base.


Phenology: Flowering all year, with peak in late winter–spring.
Habitat: Cracks in sidewalks, ballast heaps, waste places, frequently about ports and coastal areas
Elevation: 0-200 m

Distribution

V3 448-distribution-map.gif

Introduced; Calif., Fla., La., Mich., N.J., N.Y., Pa., Tex., Eurasia, n Africa

Discussion

Parietaria judaica, which, in North America, is most abundant in scattered localities in California, is the only long-lived perennial species of Parietaria in the flora. Because of confusion in Europe over the correct name, plants in North America have been called P. judaica, P. officinalis of authors, not Linnaeus, P. officinalis var. erecta (Mertens & Koch) Weddell, and P. officinalis var. diffusa (Mertens & Koch) Weddell. For a clarification of the nomenclature and taxonomy of this complex, see C.C. Townsend (1968).

Parietaria judaica was first reported from Louisiana as P. diffusa Mertens & Koch, another name commonly used on herbarium specimens (J.W. Thieret 1969).

Selected References

None.

Lower Taxa

None.
... more about "Parietaria judaica"
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.12 cm1.2 mm <br />0.0012 m <br /> (?) +
mucronate +, acute +  and ovoid +
0.6mm +  and 0.9mm +
acute +, abruptly acuminate +  and long-attenuate +
David E. Boufford +
Linnaeus +
cylindric +, rounded +, cuneate +  and attenuate +
Calif. +, Fla. +, La. +, Mich. +, N.J. +, N.Y. +, Pa. +, Tex. +, Eurasia +  and n Africa +
0-200 m +
reflexing +  and inflexed +
pistillate +  and staminate +
loosely +  and free +
Cracks in sidewalks, ballast heaps, waste places, frequently about ports and coastal areas +
straight +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (9 cm90 mm <br />0.09 m <br />) +
ovate +  and lance-elliptic +
0.8cm;4.5cm +
rounded +  and linear +
accrescent +
Flowering all year, with peak in late winter–spring. +
Fl. Palaest., +
Introduced +
decumbent +, erect +  and ascending +
not +  and persistent +
Parietaria judaica +
Parietaria +
species +
reddish +, greenish +, green +  and white +
distinct +
hypogynous +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
13 +, 10 +, 8 +  and 7 +