Noccaea fendleri has a long and complicated taxonomic history. The
autonymic name of one of its
subspecies,
Noccaea fendleri subsp.
fendleri, was described and named
Iberis badensis by
Carl Linnaeus in 1755. and the
Flora of North America.
Noccaea fendleri subsp. fendleri The autonymic subspecies has 4–6 seeds in each fruit, like subspecies
glauca. It has longer petals, typically 6.5-11 millimeters and its racemes are usually compact. It is the most widespread and common of the five subspecies.
Noccaea fendleri subsp. idahoense This subspecies has narrower leaves than others, grass like (linear) or like a narrow spear head (narrowly oblanceolate). It is also known by the common name "Idaho candytuft".
Noccaea fendleri subsp. siskiyouense This subspecies has 2–4 seeds in each fruit and leaf stems that are much longer than the basal leaves, usually two or three times longer, but sometimes as much as four times longer. It is only found in
Curry,
Douglas, and
Josephine counties in south west Oregon. ==Range and habitat==