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Athysanus pusillus

Athysanus pusillus, the common sandweed, is a species of flowering plant in the family Brassicaceae.

Athysanus pusillus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Athysanus
Species:
A. pusillus
Binomial name
Athysanus pusillus
Synonyms[3]
  • Athysanus pusillus var. glabrior S.Watson
  • Thysanocarpus oblongifolius Nutt.
  • Thysanocarpus pusillus Hook.

Description

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It is an annual herb with long, spindly stems on which grow small, unassuming white flowers. The tiny fruits that emerge from the flowers are flat, circular, green, and fringed with prominent white hairs. It may grow up to 15 cm tall[4] and flowers between April–May.[4]

Distribution

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It is native to the western United States and into British Columbia and Baja California.[3]

Habitat

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Found in moist shallow soil along the slopes and cliffs in lower mountain zones.[4]

References

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  1. ↑ "NatureServe Explorer Athysanus pusillus". NatureServe Explorer Athysanus pusillus. Arlington Virginia, United States of America: NatureServe. 2022-06-03. NatureServe Element Code:PDBRA08010. Retrieved 23 Jun 2022.
  2. ↑ Faber-Langendoen, D; Nichols, J; Master, L; Snow, K; Tomaino, A; Bittman, R; Hammerson, G; Heidel, B; Ramsay, L; Teucher, A; Young, B (2012). NatureServe Conservation Status Assessments: Methodology for Assigning Ranks (PDF) (Report). Arlington, Virginia, United States of America: NatureServe.
  3. 1 2 "Athysanus pusillus (Hook.) Greene". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 23 March 2025.
  4. 1 2 3 Webmaster, David Ratz. "Sandweed - Montana Field Guide". fieldguide.mt.gov. Retrieved 2022-08-02.
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