UW Burke Herbarium species comparison

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Veronica arvensis

Veronica triphyllos

corn speedwell, wall speedwell

finger speedwell
Habit Taprooted annual, somewhat hairy below and puberulent above, the stem erect to nearly prostrate, 0.5-3 dm. long, simple or branched below.
Leaves

Leaves opposite, ovate to broadly elliptic, 1.5-2.5 cm. long and half as wide to nearly as wide as long, with rounded serrations, the lower short-petiolate, the upper sessile.

Flowers

Inflorescence a terminal, bracteate, condensed or elongate, spike-like raceme;

bracts alternate, narrower than the leaves, each subtending a single flower;

calyx of 4 sepals;

corolla blue-violet, 2-2.5 mm. wide, rotate, 4-lobed, the upper lobe the largest;

pedicels 1-2 mm. long;

style 0.4-1 mm. long;

stamens 2.

Fruits

Capsule 3 mm. high, obcordate.

Veronica arvensis

Veronica triphyllos
Flowering time April-September April-June
Habitat Disturbed ground, gardens and roadsides Disturbed areas, balds, and grasslands.
Distribution
Occurring on both sides of the Cascades crest in Washington; widely distributed throughout much of North America.
[WildflowerSearch map]
[BONAP county map]
Occurring in scattered locations on both sides of the Cascades crest in Washington; Washington to California, east to Idaho; also in the central U.S.
[BONAP county map]
Origin Introduced from Eurasia Introduced from Europe
Conservation status Not of concern Not of concern
Sibling taxa
V. americana, V. anagallis-aquatica, V. argute-serrata, 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. serpyllifolia, 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. peregrina, V. persica, V. polita, V. regina-nivalis, V. rubra, V. schizantha, V. scutellata, V. serpyllifolia, V. verna, V. wormskjoldii
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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