Stems 2-8 cm. Leaves linear, 3-16 × 0.3-1 mm, margins sometimes ciliate, midnerves raised abaxially, with 2 lengthwise, parallel furrows, apices minutely mucronate, faces glabrous, sparsely stipitate-glandular. Peduncles distally stipitate-glandular. Involucres 6-9 × 5-9 mm. Phyllaries mostly green, linear to narrowly oblanceolate, 4.3-7.6 × 0.7-2 mm, evidently 1-nerved, a pair of collateral nerves often weakly evident, sparsely hairy and/or stipitate-glandular. Ray florets 7-11; laminae 6-11 × 2.7-5 mm, tubes stipitate-glandular. Disc florets 14-18; corollas 5.2-7.3, lobes 0.9-1.6 mm; style-branches 1.4-2.5 mm, appendages 0.7-1.2 mm. Cypselae 2-3.7 mm, densely hairy; pappi of ± 50 bristles.

Flowering late spring. Rocky slopes, grasslands, and river bluffs; of conservation concern; 400-900 m; Yukon.

Nestotus macleanii grows in the Yukon River drainage.