UW Burke Herbarium species comparison

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Veronica serpyllifolia

Veronica peregrina

thyme-leaved speedwell

purslane speedwell
Habit Perennial from branching, creeping rhizomes, the stems 1-3 dm. long, finely puberulent, often producing prostrate, lower branches, otherwise simple. Fibrous-rooted annual, the stems erect, 0.5-3 dm. tall, simple or branched below.
Leaves

Leaves opposite, elliptic to broadly ovate, 1-2.5 cm. long and 0.5-1 cm. wide, glabrous, entire or slightly toothed, the lower often short-petiolate, the others sessile.

Principal leaves opposite, linear-oblong to oblanceolate, 0.5-3 cm. long and 1-9 mm. wide, irregularly toothed or entire.
Flowers

Flowers on short pedicels in a loose, elongate, terminal raceme, the upper subtending bracts alternate;

sepals 4;

corolla bright blue to white, 4-8 mm. wide, rotate, 4-lobed, the upper lobe the largest;

style 2-3.5 mm. long;

stamens 2.

Inflorescence terminal, elongate, lax;

bracts alternate, similar to the leaves, gradually reduced upward, each subtending a single, sub-sessile flower;

sepals 4;

corolla white, inconspicuous, 2 mm. wide;

style very short;

stamens 2.
Fruits

Capsule 3-4 mm. high, broader than high, notched, finely glandular-pubescent,

Capsule 3-4 mm. high, obcordate.

Veronica serpyllifolia

Veronica peregrina
Flowering time May-August April-September
Habitat Moist meadows and shores, from the lowlands to the subalpine. Swales, wet meadows, stream banks, and other moist places, from the lowlands to moderate elevations in the mountains.
Distribution
Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Widely distributed throughout most of Washington; widely distributed throughout North America.
[WildflowerSearch map]
[BONAP county map]
Origin Both native and introduced Both native (var. xalapensis) and introduced (var. peregrina) varieties
Conservation status Not of concern Not of concern
Sibling taxa
V. americana, V. anagallis-aquatica, V. argute-serrata, V. arvensis, V. catenata, V. chamaedrys, V. cusickii, V. dissecta, V. filiformis, V. hederifolia, V. ×lackschewitzii, V. longifolia, V. missurica, V. officinalis, V. peregrina, V. persica, V. polita, V. regina-nivalis, V. rubra, V. schizantha, V. scutellata, V. triphyllos, V. verna, V. wormskjoldii
V. americana, V. anagallis-aquatica, V. argute-serrata, V. arvensis, V. catenata, V. chamaedrys, V. cusickii, V. dissecta, V. filiformis, V. hederifolia, V. ×lackschewitzii, V. longifolia, V. missurica, V. officinalis, V. persica, V. polita, V. regina-nivalis, V. rubra, V. schizantha, V. scutellata, V. serpyllifolia, V. triphyllos, V. verna, V. wormskjoldii
Subordinate taxa
V. serpyllifolia var. humifusa, V. serpyllifolia var. serpyllifolia
V. peregrina var. peregrina, V. peregrina var. xalapensis
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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