The Rose of Jericho, Resurrection plant, or Anastatica hierochuntica is a member of the family Brassicaceae (formerly Cruciferae) and the only member of the genus Anastatica. Both of the families are classified in the division Magnoliophyta, the class Magnoliopsida. It is a small grey herb that rarely grows above 15 cm high. The plant bears minute, white flowers.

These plants are found in arid areas in the Negev and Sahara Desert, including parts of North Africa and regions of Egypt, Israel, Iraq, Jordan, Pakistan, and Iran.

The Rose of Jericho practices an odd behaviour. After the rainy season, it dies and dries up, curling its stems into a tight ball. This protects the seeds and prevents them from being dispersed prematurely. The seeds of the plant are very hardy and can be dormant for years. When wetted, the branches spread out and a fraction of the seeds are dispersed by raindrops hitting a spoon-like appendix on the seeds. If rain allows, the dispersed seeds germinate. The process of curling up and opening is completely reversible and can be repeated many times. Since the plant is annual, it dies after the wet season. However, many people believe that this is not true. Indeed, only a few hundred species of flowering plants are real "resurrection plants".

For example, the North American fern species which is most commonly sold as the rose of Jericho can indeed be revived by a little water. After wetting, the plant turns green, hence the name "resurrection plant" is true for this plant species. Because of the potential age of the plant, it has also taken the name "dinosaur plant." Another taxonomic name for a plant described exactly as above: Selaginella pilifera.

Source: Wikipedia

ADDITIONAL COMMENTS
Must be a recent invasive species because it is not listed in Kearney & Peebles "Arizona Flora" 1960. Al_HikesAZ