Arabis pycnocarpa, the slender rock cress, is a species of flowering plant in the family Brassicaceae. It is native to North America and eastern Asia, being found in rocky, calcareous areas.[2]

Arabis pycnocarpa

Secure  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Arabis
Species:
A. pycnocarpa
Binomial name
Arabis pycnocarpa
M.Hopkins
Synonyms

Arabis hirsuta var. pycnocarpa

Description

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It is a small perennial or biennial that has white flowers in the spring. Two varieties have been named that are distinguished by pubescence differences:[3]

  • Arabis pycnocarpa var. adpressipilis – native only to eastern North America
  • Arabis pycnocarpa var. pycnocarpa – widespread across North America and Asia

See also

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References

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  1. ^ NatureServe (2023). "Arabis pycnocarpa". Arlington, Virginia. Retrieved 24 November 2023.
  2. ^ New England Wildflower Society
  3. ^ Flora of North America