Difference between revisions of "Stephanomeria runcinata"

Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 428. 1841

Common names: Desert or sawtooth wirelettuce
Treatment appears in FNA Volume 19. Treatment on page 357. Mentioned on page 351, 352.
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Latest revision as of 16:14, 12 August 2019

Perennials, 10–20(–25) cm (rhizomes stout). Stems erect or ascending, glabrous or weakly scabrous-puberulent. Leaves usually withered at flowering; basal blades narrowly lanceolate, markedly runcinate, 3–7 cm, margins pinnately lobed (faces glabrous or weakly scabrous-puberulent); cauline much reduced, bractlike. Heads borne singly on branch tips. Peduncles 10–50 mm (usually minutely bracteolate). Calyculi of appressed bractlets (unequal, lengths to 1/2 phyllaries). Involucres 9–12(–13) mm (phyllaries 5–6, glabrous). Florets 5–6. Cypselae tan, 3–5 mm, faces smooth to slightly bumpy, grooved; pappi of 15–25, white bristles (persistent), wholly plumose. 2n = 16.

Phenology: Flowering June–Sep.
Habitat: Open sandy places, eroded siltstones, clay flats, alkali soils
Elevation: 600–1800 m

Distribution

V19-564-distribution-map.gif

Alta., Sask., Colo., Mont., Nebr., N.Dak., Utah, Wyo.

Discussion

Stephanomeria runcinata grows in the upper Great Plains and adjacent intermontane valleys.

References

None.

Lower Taxa

No lower taxa listed.