ROSE VERBENA
File Size: 68 KB
 
Glandularia canadensis   (L. ) Nutt.
[=Verbena canadensis  (L. ) Britton]
Pottawatomie County, Kansas
Perennial
Height: 8-24 inches
Family: Verbenaceae - Vervain Family
Flowering Period:   May, June
Also Called: Rose vervain.
Stems: Ascending or decumbent, several to many, branching from bases, 12 to 24 inches long, glabrous or hairy.
Leaves: Opposite, simple, variable, on stalks 1 to 3 inches long, ovate to lanceolate in outline, 1 to 3.5 inches long, .5 to 1.5 inch wide, hairy or nearly glabrous; margins incised or cleft; tips pointed.
Inflorescences: Spikes, many-flowered, initially flattened and head-like, elongate in fruit.
Flowers: Calyces 5-lobed, about .5 inch long, sparsely glandular-hairy, lobes unequal; corolla tubes topped by 5 spreading, often notched lobes, about .5 inch wide at top, rose, pink, lavender, purple, blue, or white; stamens 4, in 2 groups.
Fruits: Nutlets, 4, slender, ridged, blackish, 1-seeded.
Habitat: Rocky prairie hillsides, waste places, open woodlands, and roadsides, most abundant on dry, well-drained sites with sparse vegetation.
Distribution: Principally east 1/3 of Kansas.
Comments: This is the showiest of the verbenas. It is the source of many garden hybrids. Rose verbena can be transplanted, but plants usually live only 2-3 years. It grows better from seeds.

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