Difference between revisions of "Erigeron greenei"
Sida 21: 28. 2004.
Common names: Greene’s narrow-leaf fleabane
Basionym: Erigeron angustatus (A. Gray) Greene
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|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Erigeron | |genus=Erigeron | ||
Revision as of 16:26, 18 September 2019
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.
Phenology: Flowering May–Sep.
Habitat: Chaparral or open woods, ponderosa or jeffrey pine, Douglas fir, usually over serpentine, sometimes rocky alluvium
Elevation: (100–)500–1600 m
Discussion
Of conservation concern.
Selected References
None.
Lower Taxa
None.