Veronica persica

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Veronica persica
Veronica persica 060403Fw.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Plantaginaceae
Genus: Veronica
Species: V. persica
Binomial name
Veronica persica
Poiret

Veronica persica (common names: common field-speedwell,[1] Persian speedwell, large field speedwell, bird's-eye, or winter speedwell) is a flowering plant native to Eurasia. It was first recorded in Britain in 1825[2] and is widespread in North America and eastern Asia, including Japan and Taiwan.

Description[edit]

The cotyledons are triangular with truncated bases. The short-stalked leaves are broadly ovate with coarsely serrated margins, and measure 1 to 2 cm long. The leaves are paired on the lower stem and are alternately arranged on the upper parts. The plant has weak stems that form a dense, prostrate groundcover. The tips of stems often grow upright.

The flowers are roughly a centimeter wide[3] and are sky-blue with dark stripes and white centers. They are zygomorphic, having only one vertical plane of symmetry. They are solitary on long, slender, hairy stalks in the leaf axils.

The seeds are transversely rugose and measure between 1 and 2 millimeters long. There are 5 to 10 seeds per locule in the fruit.[4]

V. persica can be distinguished from similar species by its heart-shaped fruit with two widely-separated lobes.[2][3][4]

Biology[edit]

The plant is an annual or winter annual herb that reproduces from seed.

Unripe fruit

Horticultural Uses[edit]

Although many species in the genus are used in gardens (such as V. exalta, V. incana, V. gentianoides, V. longifolia, V. perfoliata, and V. spicata),[5] this species is generally seen as a weed[6] and has no known horticultural uses.

References[edit]

  1. ^ "BSBI List 2007" (xls). Botanical Society of Britain and Ireland. Retrieved 2014-10-17. 
  2. ^ a b Blamey, M., et al. 2003. Wild flowers of Britain and Ireland: The Complete Guide to the British and Irish Flora. A & C Black, London.
  3. ^ a b Rhoads, A. F. and T. A. Block. Plants of Pennsylvania: An Illustrated Manual, 2nd ed. University of Pennsylvania Press, Philadelphia. 2007.
  4. ^ a b Gleason, H. A. and A. Cronquist. Manual of Vascular Plants of Northeastern United States and Adjacent Canada, 2nd ed. New York Botanical Gardens, New York, New York. 1991.
  5. ^ Thomas, G. S. Perennial Garden Plants or the Modern Florilegium, 2nd ed. J. M. Dent and Sons, London. 1992.
  6. ^ Veronica persica. USDA Plants Database.