Potentilla longibracteata

Potentilla longibracteata
Critically Imperiled
Critically Imperiled (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Potentilla
Species:
P. longibracteata
Binomial name
Potentilla longibracteata
(Ertter) Mosyakin & Shiyan
Synonyms
  • Ivesia longibracteata Ertter

Potentilla longibracteata, also known as Castle Crags ivesia and longbract mousetail, is a rare species of flowering plant in the rose family. It is endemic to Shasta County, California, where it is known only from Castle Crags. It grows in rocky granite habitat in the temperate coniferous forest.

Description

Potentilla longibracteata is a perennial herb forming a glandular green tuft of foliage where it grows from crevices in granite rock. The leaves are 2 to 4 centimeters long and are made up of several pairs of lobed leaflets. The inflorescence is a headlike cluster of several flowers 1 or 2 centimeters wide. Each flower is just under a centimeter long and has tiny pale yellow petals.

References

  1. ↑ "NatureServe Explorer 2.0".
  2. ↑ "Potentilla longibracteata (Ertter) Mosyakin & Shiyan | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2024-06-12.