Plant of the Month Pages
| Common Name(s): | Morning Glory |
| Scientific Name: | Calystegia macrostegia |
| Family: | Convolvulaceae (Morning Glory) |
| Plant Type: | Perennial or Vine |
| Size: | stems twining vines to 12 feet long |
| Habitat: | Sage Scrub, Chaparral |
| Blooms: | March to August |
| Fire Response: | Stump Sprout or Seed |
Morning glory is a showy vine of bright white cheerful-looking trumpet-shaped blooms with a long summer flowering time. Blooming typically occurs from March to August. It is particularly abundant after a fire, so you might tire of seeing this plant next summer if you spend a lot of time in Point Mugu State Park.
The large mostly- to all-white funnel-shaped flowers grow to 2 inches or so in diameter, sometimes with purple stripes in the folds. The purple is symbolic of a more mature plant (and brings to mind the poem, "When I am an old woman, I shall wear purple"). Leaves grow from short stems and are triangular or arrow- or spade-like and up to 2 inches long.
The genus name Calystegia is from two Greek words meaning "a covering cup". The species name macrostegia further stresses it is a "large covering". Frequently this plant is given a subspecies name of cyclostegia which means circular covering. There are many other related subspecies of this plant due to mingling. The photo below-right is one such variation, Island Morning Glory (the seemingly-even-larger-covering-cup, Calystegia macrostegia ssp. macrostegia), from Santa Cruz Island.
Contributed by Liz Baumann
