Sonoran Desert Naturalist >>> Field Guide >>> Sonoran Desert Flora >>> Aizoaceae >>> Trianthema portulacastrum

Desert Horse-purslane

Trianthema portulacastrum

Photo © Left by Michael Plagens

Photographed in Phoenix, Arizona, USA in 12 Sept 2007. This photo is hosted at Wikimedia where there are additional images of showy Aizoaceae.

Photo © Mike Plagens

The fruit is a capsule with a two-lobed crest.
The ruler is scaled in millimeters.

SUMMER ANNUAL: Fleshy, succulent stems grow nearly prostrate on the soil spreading out up to a meter or more depending on available water.

RANGE: A cosmopolitan plant growing usually as a weed in warm, irrigated desert regions; it is considered native to North America.

LEAVES: Opposite on the stems with one leaf of each pair considerably larger than the other.

FLOWERS: Small purple-pink flowers open ephemerally in the morning.

FRUIT: The capsules sport a bi-lobed crest and contain several seeds.


Aizoaceae - Carpetweed Family

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Copyright Michael J. Plagens, 1999-2009