NARROW-LEAF VERBENA
File Size: 59 KB
 
Verbena simplex  Lehm.
Konza Prairie, Chase County, Kansas
Perennial
Height: 8-24 inches
Family: Verbenaceae - Vervain Family
Flowering Period:   June, July, August
Also Called: Narrow-leaved verbena, narrow-leaved vervain.
Stems: Erect or ascending, 1 to several from base, sometimes branched above, sparsely covered with minute hairs.
Leaves: Opposite, narrow, linear to narrowly lanceolate, oblong or spatulate, 1 to 4 inches long, to 3/5 inch wide, nearly glabrous to minutely hairy, wrinkled above, veiny beneath; tips pointed; margins toothed, but often only near tip; tapering to short stalk or nearly sessile.
Inflorescences: Spike, slender, usually solitary, terminal on stem and branches; flowers and fruits typically dense; bracts small, equaling or slightly shorter than calyx.
Flowers: Calyces 5-lobed, to 1/5 inch long, sparsely hairy; lobes tapering to points; corollas pale bluish, lavender, or rarely white, 1/6 to 1/4 inch wide, tube barely longer than calyx; lobes 5; stamens 4, in 2 groups.
Fruits: 4 nutlets, linear, 1/10 inch long, olive to reddish-brown, each 1-seeded.
Habitat: Dry, open waste areas, rocky prairie hillsides, and roadsides.
Distribution: Principally the east 1/3 of Kansas.
Comments: Simplex is Latin for "simple", in reference to the inflorescence.

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