Aphanes arvensis

Linnaeus

Sp. Pl. 1: 123. 1753.

Introduced
Synonyms: Alchemilla arvensis (Linnaeus) Scopoli
Treatment appears in FNA Volume 9. Treatment on page 310.

Plants slender or relatively robust, densely hairy throughout, hairs, at least some, more than 1 mm. Stems ± erect or spreading, usually branched from base, 2–20 (–30) cm. Leaves 6–16 mm; stipules overlapping, 4–10 mm, divided 1/3–1/2 their length, lobes 8–12, on distal nodes ± triangular, length 1–2 (–4) times as long as width; petiole free from stipules in proximal and distal leaves; blade 4–10 mm, divided into 3–4 segments, each segment 3–4 (–5) -lobed. Inflorescences opposing leaves, dense, flowers not completely hidden. Pedicels less than 1 mm. Flowers 1.3–1.8 × 0.8–1 mm, 1.5–2.5 mm in fruit; epicalyx bractlets 0–0.1 mm; hypanthium ovoid to ellipsoid, contracted at apex, 8-ribbed, spreading-erect hairy in proximal 2/3, glabrescent in distal 1/3; sepals ± spreading to erect, 0.4–0.7 mm, long-ciliate. Fruits (1.6–) 1.8–2.3 (–2.5) mm. 2n = 48.


Phenology: Flowering Apr–May.
Habitat: Fields, usually on sandy soil, mossy and grassy sites, moist shade, gravelly roadsides, shady, bare patches in lawns, shallow soil pockets on rocky seashores, meadows, hillsides
Elevation: 0–150 m

Distribution

V9 505-distribution-map.jpg

Introduced; B.C., N.S., Calif., Del., Ga., Idaho, N.J., Oreg., Wash., Europe, sw Asia, n Africa, also in South America (Chile), Pacific Islands (New Zealand), Australia

Discussion

Selected References

None.

Lower Taxa

None.

"/3" is not declared as a valid unit of measurement for this property.

... more about "Aphanes arvensis"
John McNeill +  and Barbara Ertter +
Linnaeus +
compound +  and simple +
opposite +  and alternate +
divided +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
free +  and distinct +
B.C. +, N.S. +, Calif. +, Del. +, Ga. +, Idaho +, N.J. +, Oreg. +, Wash. +, Europe +, sw Asia +, n Africa +, also in South America (Chile) +, Pacific Islands (New Zealand) +  and Australia +
not +  and aggregated +
0–150 m +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
1.5mm +  and 2.5mm +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fields, usually on sandy soil, mossy and grassy sites, moist shade, gravelly roadsides, shady, bare patches in lawns, shallow soil pockets on rocky seashores, meadows, hillsides +
spreading-erect +
glabrescent +  and hairy +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
crassinucellate +
opposite +  and alternate +
not persistent +
0.6 cm6 mm <br />0.006 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
pinnate +  and entire +
inferior +  and superior +
clustered +, biseriate +  and superposed +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
5 +  and 4 +
Flowering Apr–May. +
adnate +, free +, connate +  and distinct +
not arillate +
erect to spreading +  and connivent +
persistent +
free +  and distinct +
less spreading +  and erect +
ovate +  and narrowly triangular +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Introduced +
free +  and distinct +
spreading +  and erect +
1 +  and 10 +
2 cm20 mm <br />0.02 m <br /> (20 cm200 mm <br />0.2 m <br />) +
palmate +  and pinnate +
adnate +  and free +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
deciduous +
distinct +
not elongate +
Alchemilla arvensis +
Aphanes arvensis +
species +
inconspicuous +
flat +  and conic or turbinate +
reduced +
prostrate +  and ascending +