Favoritos de whitneybrook

A close inspection of all fruits on 2 spikes showed all to have 3-parted walls. Not as hairy as they maybe could be, but definitely hairy. Huge dark green leaves, white chalky bark, and riparian habit are all supporting features. All material in hand was taken from 25' up.

Erysimum capitatum growing in postfire Douglas Fir forest (with some Rocky Mountain juniper and limber pine) at the south end of the Bridger Range, Gallatin County, Montana. The burn occurred September 2020. Plants in flower were photographed June 2023 and the plant in fruit during July 2022. The erect ascending fruits and dolabriform hairs uniformly scattered along the stem distinguish this species from Erysimum asperum (western wallflower).

The involucral bracts are narrow, glandular, numerous, and approximately all equal in length and the petalls are numerous and overlapping. These are traits of Erigeron, but the late summer flowering and the broad ray petals (about 2 mm broad) are distinctive traits of Aster species. Thus, subalpine fleabane is distinctive in combining morphological and ecological traits of Erigeron and Aster sensu lato. This site lies at the headwaters of the South Fork of Teton Creek, west of Buck Mountain, in the Teton Range.