VENUS' LOOKING GLASS
File Size: 71 KB
 
Triodanis perfoliata   (L. ) Nieuw.
Riley County, Kansas
Annual
Height: 4-40 inches (typically 6-20 inches)
Family: Campanulaceae - Bellflower family
Flowering Period:   May, June, July
Also Called: Clasping venus' looking-glass.
Stems: Erect, slender, mostly 5-angled, simple or branched from bases, densely leafy, somewhat hairy.
Leaves: Alternate, simple, clasping, heart-shaped to broadly ovate, 1/4 to 1 inch long, 1/3 to 1 inch wide, glabrous above, rough-hairy below; margins round toothed or pointed toothed; tips broadly pointed to rounded.
Inflorescences: 1-3 flowers sessile in leaf axil; bracts heart-shaped to broadly ovate.
Flowers: Calyx lobes narrowly triangular; flowers of 2 forms; upper flowers open at pollination, circular in outline, 1/2 to 1 inch wide; corollas purple to blue, sometimes with white streaks; petals 5, united at bases; lower flowers small, closed, self-pollinating; corollas purple to blue.
Fruits: Capsules, egg-shaped, 1/4 inch long; seeds numerous, brown.
Habitat: Dry sandy or gravelly prairies, pastures, waste ground, and occasionally woodlands.
Distribution: Throughout except extreme west of Kansas.
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