Erigeron greenei

G. L. Nesom

Sida 21: 28. 2004.

Common names: Greene’s narrow-leaf fleabane
EndemicConservation concern
Basionym: Erigeron angustatus (A. Gray) Greene Bull. Calif. Acad. Sci. 1: 88. 1885,
Treatment appears in FNA Volume 20. Treatment on page 313. Mentioned on page 261.

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.
... more about "Erigeron greenei"
Guy L. Nesom +
G. L. Nesom +
Erigeron angustatus +
Greene’s narrow-leaf fleabane +
(100–)500–1600 m +
Chaparral or open woods, ponderosa or jeffrey pine, Douglas fir, usually over serpentine, sometimes rocky alluvium +
Flowering May–Sep. +
Endemic +  and Conservation concern +
Achaetogeron +  and Trimorpha +
Erigeron greenei +
Erigeron +
species +