Psoralidium junceum

Psoralidium junceum is a species of flowering plant in the legume family, commonly known as rush lemonweed, [2] or rush scurfpea. It is native to southwestern North America where it is only known from Arizona and Utah. It grows on sand dunes, among shrubs on semi-stabilized sands, on mudflats encrusted with salt and on bare rocky slopes.[1]

Psoralidium junceum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Genus: Psoralidium
Species:
P. junceum
Binomial name
Psoralidium junceum
Synonyms[1]
  • Psoralea juncea

Distribution and habitat

Psoralidium junceum is endemic to the southwestern United States where it is restricted to the southern part of Kane and San Juan Counties in Utah and the northern part of Coconino County in Arizona. A separate population is to be found in eastern Garfield County in Utah. The plant is locally abundant in the vicinity of the Paria River, the San Juan River and the Colorado River but scarce elsewhere. It tends to dominate the plant communities where its specific habitat requirements are met. Its altitudinal range is between 1,000 and 1,750 m (3,300 and 5,700 ft). Its conservation status is classified as "vulnerable" in Utah and as "critically imperilled" in Arizona.[1]

References
  1. Gries, D. (29 April 1999). "Psoralidium junceum". NatureServe. Retrieved 16 January 2021.
  2. "Psoralidium junceum (Eastw.) Rydb". SEINet. Retrieved 17 January 2021.
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