[Illustration: Allionia incarnata]
Common names: WINDMILLS, PINK THREE-FLOWER, TRAILING-FOUR-O’CLOCK
Arizona and Texas deserts: (_Allionia incarnata_). Purple pink.
April-October.
California desert: (_Allionia albida_). Rose pink. July-October.
Four-o’clock family. Size: Spreading annual with branches 30 inches.
Slender, trailing stems up to 30 inches in length with clusters of three
rose-purple to pink blossoms serve to identify the Trailing-four-o’clock
which is a conspicuous plant of the open plains and mesas. The plants
prefer dry, sandy benches where they are quite conspicuous with their
prostrate, somewhat sticky stems weighted with clinging grains of sand.
Blossoms are usually showy and colorful, rarely pale rose to white.
Fruits of _A. incarnata_ are conspicuously toothed.