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Erigeron greenei G. L. Nesom [family COMPOSITAE]

Date Updated: 23 July 2012

Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Erigeron greenei G. L. Nesom [family COMPOSITAE], Sida, 21: 28. 2004 Erigeron angustatus (A. Gray) Greene [family COMPOSITAE], Bull. Calif. Acad. Sci., 1: 88. 1885,. not Fries ex Nyman 1879, based on E. inornatus (A. Gray) A. Gray var. angustatus A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 215. 1884
Treatment Author(s)
Guy L. Nesom
Information
Perennials, 30–90 cm; taprooted, caudices simple or branches relatively short and slender, woody. Stems erect (arising from rootcrowns or caudex branches), glabrous, eglandular. Leaves mostly cauline; blades linear, 10–60 × 0.1–1(–2) mm, barely reduced distally, margins entire, ciliate, faces glabrous, eglandular. Heads (discoid) 1 or 2–5 in loosely corymbiform arrays. Involucres 5.5–7.5 × 8–12 mm. Phyllaries in 3–5 series (apices purplish), glabrous, minutely glandular. Ray (pistillate) florets 0. Disc corollas 4.2–6 mm (throats slightly indurate, not inflated). Cypselae 2.4–2.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 26–38 bristles.
Conservation Status
of conservation concern;
Phenology
may (spring), jun-aug (summer), sep (fall)
Altitude range
(100–)500–1600 m;
Distribution
USA Calif.

Date Updated: 23 July 2012

Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Erigeron greenei G. L. Nesom [family COMPOSITAE], Sida, 21: 28. 2004 Erigeron angustatus (A. Gray) Greene [family COMPOSITAE], Bull. Calif. Acad. Sci., 1: 88. 1885,. not Fries ex Nyman 1879, based on E. inornatus (A. Gray) A. Gray var. angustatus A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 215. 1884
Treatment Author(s)
Guy L. Nesom
Information
Perennials, 30–90 cm; taprooted, caudices simple or branches relatively short and slender, woody. Stems erect (arising from rootcrowns or caudex branches), glabrous, eglandular. Leaves mostly cauline; blades linear, 10–60 × 0.1–1(–2) mm, barely reduced distally, margins entire, ciliate, faces glabrous, eglandular. Heads (discoid) 1 or 2–5 in loosely corymbiform arrays. Involucres 5.5–7.5 × 8–12 mm. Phyllaries in 3–5 series (apices purplish), glabrous, minutely glandular. Ray (pistillate) florets 0. Disc corollas 4.2–6 mm (throats slightly indurate, not inflated). Cypselae 2.4–2.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 26–38 bristles.
Conservation Status
of conservation concern;
Phenology
may (spring), jun-aug (summer), sep (fall)
Altitude range
(100–)500–1600 m;
Distribution
USA Calif.
Erigeron greenei G. L. Nesom [family COMPOSITAE]
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