Erigeron pulcherrimus

A. Heller

Bull. Torrey Bot. Club 25: 200, plate 340. 1898.

Common names: Basin fleabane
Endemic
Synonyms: Erigeron bistiensis G. L. Nesom & Hevron Erigeron pulcherrimus var. wyomingia (Rydberg) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 296. Mentioned on page 276.

Perennials, (5–)7–30(–35) cm; taprooted, caudex branches relatively short and thick. Stems erect (gray-green), moderately to densely gray-green-strigose (hairs white, stiff), eglandular. Leaves basal (persistent) and cauline (gray-green; petiole bases broadened or not, not thickened and whitish-indurate); basal blades linear to narrowly oblanceolate, 10–70 × 1–3(–5) mm, cauline little reduced for about 1/2–3/4 stems, margins entire, faces moderately to densely strigose (hairs white, stiff), eglandular. Heads 1. Involucres 5–7(–9) × 10–16(–20) mm. Phyllaries in 2–3(–4) series, hirsute to villoso-hirsute, minutely glandular. Ray florets 25–60; corollas white to pink or bluish, 8–15 mm, laminae coiling. Disc corollas 3.8–5.7 mm. Cypselae 2.5–3 mm, (2–)4(–5)-nerved, faces densely strigoso-sericeous; pappi: outer sometimes of setae or bristles (to 0.5 lengths of inner), inner of 32–50 bristles.


Phenology: Flowering May–Jun.
Habitat: Clays, clay-silts, and gravelly soils, saline, gypseous, and seleniferous, commonly in salt desert scrub, pinyon-juniper
Elevation: 1300–2100 m

Distribution

V20-628-distribution-map.gif

Ariz., Colo., N.Mex., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron pulcherrimus"
Guy L. Nesom +
A. Heller +
Basin fleabane +
Ariz. +, Colo. +, N.Mex. +, Utah +  and Wyo. +
1300–2100 m +
Clays, clay-silts, and gravelly soils, saline, gypseous, and seleniferous, commonly in salt desert scrub, pinyon-juniper +
Flowering May–Jun. +
Bull. Torrey Bot. Club +
Erigeron bistiensis +  and Erigeron pulcherrimus var. wyomingia +
Erigeron pulcherrimus +
Erigeron +
species +