Difference between revisions of "Polycnemum arvense"
Sp. Pl. 1: 35. 1753.
Common names: Soft needleleaf
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|genus=Polycnemum | |genus=Polycnemum | ||
|species=Polycnemum arvense | |species=Polycnemum arvense | ||
Revision as of 21:01, 24 September 2019
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. Bracteoles ca. equaling perianth length. Seeds 1–1.5 mm. 2n = 18.
Phenology: Flowering summer–fall.
Habitat: Sandy soils
Elevation: 0-200 m
Distribution
B.C., c, s Europe to e Russia.
Discussion
Once considered weedy, this species has been collected rarely in recent years.
Selected References
None.
Lower Taxa
None.