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park rockcress

Scientific Name: Arabis fernaldiana var. fernaldiana

Family: Brassicaceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Park Rockcress (Arabis fernaldiana)

Park Rockcress, scientifically known as Arabis fernaldiana, is a rare perennial herb belonging to the mustard family (Brassicaceae).

Considerations for Pets

  • This plant is an herb and may be present in home gardens and parks.

Taxonomy and Nomenclature

  • Scientific Name: Arabis fernaldiana
  • Common Name: Park Rockcress
  • Family: Brassicaceae (Mustard Family)
  • Rank: Variety - Arabis fernaldiana Rollins var. stylosa (S. Watson) Rollins
  • Synonyms: Mentions Boechera as a related genus within the Brassicaceae family. Other varieties of Arabis fernaldiana are also mentioned.

Distribution and Habitat

  • Park Rockcress is known only from the immediate vicinity of Dinosaur National Park on the Colorado-Utah border.
  • Other species of Rockcress have been located at Anza-Borrego Desert State Park, Arches National Park, Canyonlands National Park, Mount Diablo State Park, Yellowstone National Park, Vosges du Nord National Park, Troodos National Forest Park, and Pafos State Forest.

Morphological Characteristics and Growth Habits

  • Described as a perennial herb.
  • Other Rockcress plants can form tufted rosettes of oval leaves covered with white down.
  • Heights in Rockcress plants can range from 6" to 6.5'.
  • Some varieties of Rockcress lose the aerial part during the coldest months of the year.

Ecological Role

  • It is a native plant in some regions.
  • The plant is described as growing in sunny, dry soil.

Quirky Facts

  • Some rockcress plants are know for their fragrant blooms in the spring.

Other Rockcress Species

  • Arabis perennans (Synonym: Boechera perennans)
  • Arabis pulchra var. pallens (Synonym: Boechera pulchra)
  • Arabis fernaldiana var. stylosa
  • Arabis albinda (A. caucasica): Wall Rock Cress
  • Arabis aubrietioides
  • Arabis holboellii: Holboell's Rock Cress
  • Arabis procurrens 'Variegata': Spreading Rock Cress 'Variegata'
  • Arabis blepharophylla: Coast Rock Cress
  • Arabis breweri var. breweri: Brewer's Rock Cress
  • Arabis davidsonii davidsonii: Davidson's Rockcress
  • Arabis davidsonii: Fernald's Rockcress
  • Arabis davidsonii fernaldiana: Park Rockcress
  • Arabis vivariensis: Park Rockcress
  • Arabidopsis arenosa: Sand Rock-cress

Other Rockcress Varieties

  • Whitewell Gem Rock Cress (Aubrieta deltoidea 'Whitewell Gem')
  • Braun's Rockcress
  • Cascade Rockcress
  • Fremont County Rockcress (Boechera pusilla)