Speedwell, purslane, Veronica peregrina

Life Cycle

Annual

Propagation

Reproducing only by seed.

Stems

Stems erect or much-branched near the base and becoming erect, smooth or with fine, slightly sticky hair; stems with a somewhat fleshy texture (hence "purslane" in the English name).

Leaves

Leaves with a somewhat fleshy texture. Lower and middle leaves opposite (2 per node), oblong or somewhat linear, smooth or irregularly toothed, lower ones short-stalked, middle and upper ones stalkless; upper leaves alternate (1 per node), smaller and narrower, each with a flower in its axil.

Flowers and Fruit

Flower stalks extremely short; corolla flat, 4-lobed, 2mm across, white or whitish; seedpods flat, heart-shaped with a notch at the top; each leafy bract usually much longer than its flower or seedpod. Flowers from early May to July, and occasionally again in autumn.

Habitat

Purslane speedwell occurs throughout Ontario and in field crops is most commonly found in winter cereals. It is also found in gardens, orchards, lawns, waste places, roadsides, railways, stony areas and occasionally in greenhouses.

Distinguishing Features

It is distinguished by its somewhat smooth and fleshy stem and leaves, its lower leaves opposite and narrow, upper ones alternate, smaller, and its tiny white flowers on very short stalks, followed by small heart-shaped seedpods.

Often Mistaken For

Common chickweed http://www.weedinfo.ca/en/weed-index/view/id/STEME, however purslane speedwell has fleshy, reddish-green stems that feel hairless (compared to the small fringe of hairs on common chickweed stems that alternate each node. Secondly, the newer leaves of purslane speedwell alternate one per node, whereas common chickweed leaves are opposite with 2 leaves per node. Lastly, the flowers of purslane speedwell are smaller and lack the 5, 2-lobed petals that common chickweed has.


Figure #1.

A. Plant. B. Seedpod.


Figure #2.

Flowering plant found in an Ontario winter wheat field in May, 2012


Figure #3.

A close up of the stem and leaf of purslane speedwell


Figure #4.

The small white flowers of purslane speedwell


Figure #5.

A closer look at the older leaves of purslane speedwell that have slightly toothed margins.