E-Flora BC: Electronic Atlas of the Flora of British Columbia

Aphanes arvensis L.
field parsley piert
Rosaceae (Rose family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #11390)

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Distribution of Aphanes arvensis
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Species Information

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Low annual herb from a taproot; stems decumbent to erect, 2-20 cm tall, usually freely branched from the base, soft-hairy.
Alternate, short-stalked, broadly egg- to fan-shaped, the blades 4-10 mm long; sparsely long-hairy on both surfaces, deeply palmately cleft into 3 wedge-shaped segments themselves divided into 3 to 5 oblong lobes; stipules fused into a lobed, leaf-like cup, the lobes of the stipules surrounding the flower clusters triangular and 1/2 the length of the unlobed portion.
Inflorescence of axillary clusters of 5 to 15 tiny, short-stalked flowers, the clusters borne along most of the length of the stem at each node, in the axils of sheathing stipules; corollas lacking; calyces green, urn-shaped, long-hairy, 1-2.5 mm long, 4-lobed, the lobes triangular-egg-shaped, erect, 0.2-0.6 mm long; ovaries superior; stamens usually 1.
Achenes, 1, ellipsoid, smooth, about 1 mm long, encased within the dry hypanthium, which has ascending calyx-lobes so that the whole structure appears flask-shaped, this 1.5-2.5 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to vernally moist, open rocky slopes, grassy meadows and clearings, roadsides and waste places in the lowland and montane zones; frequent in SW BC, rare inland in S BC; S to CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Aphanes arvensis

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres)
Slope Gradient (%) 35 43 50
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
140 173 200
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 2 3
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in:


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Alchemilla arvensis (L.) Scop.
Alchemilla cuneifolia Nutt.
Alchemilla occidentalis Nutt.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References