green field speedwell (Veronica agrestis)
green field speedwell
Pocilla agrestis (L.) Fourr.
CONFIRMATION STATUS: Pending confirmation.
TAXONOMY: The currently accepted scientific name of green field
speedwell is Veronica agrestis L.
NATIVE STATUS: Introduced, United States and Canada.
GENERAL BOTANICAL CHARACTERISTICS:
Habit: Green field speedwell is a puescent annual or winter annual with
prostrate or ascending stems. Stems 0.5-3 dm. long, branched at the base,
often tufted or matted.
Leaves: Leaves are ovate or rounded, coarsely but evenl crenate, 1-2 cm.
Flowers: Flowers solitary in the axils of many of the alternate leaves.
Peduncles 6- 10 mm. long in flower, longer and recurved when fruits are
mature. The calyx-lobes are finely pubescent, ovate to broadly lanceolate, 3.5-5mm. long in flower, 6-9 mm. long and exceeding the fruit when ma-
ture. The corolla are blue with a pale lower lobe, 5-7 mm. broad.
Fruit/Seeds: The fruit capsule is slightly flattened, 3.5-6 mm. wide, notch-
ed at the top, hairy along the margins. The style equals the capsule lobes.
Seeds are 3-8 in each cell.
Roots: Short to mederate taproot and fibrous.
REGENERATION PROCESS: Green field speedwell regenerates itself
HABITAT TYPES: Like other speedwells, green field speedwell can be
found growing in grassy slopes, fields, abandoned fields, along roadsides
and railroads, gardens, lawns, and waste ground. Areas with a history of
disturbance are preferred.
SITE CHARACTERISTICS: Green field speedwell prefers light (sandy),
medium (loamy) and heavy (clay) soils and requires well-drained soil. The
plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the
shade. It requires moist soil.
SEASONAL DEVELOPMENT: Blooming time is generally May through
GENERAL DISTRIBUTION: Green field speedwell is found through-
out most of the eastern United States and Canadian provinces. It extends
into the lower Ohio River Valley and mid-west into the eastern portion of
the far southwest. It does not naturally grow in the far west.
SKY MEADOWS DISTRIBUTION: To be determined.
IMPORTANCE AND USES: Insufficient information.
Crooked Run Valley