Flora of North America species comparison

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Polycnemum arvense

crunch weed, field needleleaf, soft needleleaf
Stems

procumbent or erect, branches spirally twisted, to 10 (–50) cm, glabrous to densely pubescent.
Leaves

green, 3–8(–12) × 1 mm, base somewhat clasping, hyaline, not bristly, apex softly spine-tipped.
Bracts

distalmost at least 3 times perianth length.
Seeds

1–1.5 mm.
Bracteoles

ca. equaling perianth length.
2n

= 18.

Polycnemum arvense
Phenology Flowering summer–fall.
Habitat Sandy soils
Elevation 0-200 m (0-700 ft)
Distribution
from FNA
BC; c Europe; s Europe to e Russia [Introduced in North America]
[BONAP county map]
Discussion

Once considered weedy, this species has been collected rarely in recent years.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 4, p. 262.
Parent taxa Chenopodiaceae > Polycnemum
Sibling taxa
P. majus
Name authority Linnaeus: Sp. Pl. 1: 35. (1753)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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