Ericameria greenei |
|
---|---|
Greene's goldenbush, Greene's goldenweed, Greene's heath goldenweed, rabbitbrush |
|
Habit | Plants 10–30 cm. |
Stems | erect to ascending, green when young, soon reddish to brownish, branched, glabrous or tomentose, stipitate-glandular. |
Leaves | mostly erect or ascending; blades spatulate (flat), 15–30 × 3–7 mm, midnerves (and sometimes 2 fainter, collateral nerves) evident (slightly raised abaxially), apices obtuse, mucronate, faces glabrous or tomentose and/or stipitate-glandular; axillary fascicles absent. |
Peduncles | usually less than 20, rarely to 100 mm (leafy). |
Involucres | broadly campanulate, 8–12 × 12–15 mm. |
Ray florets | (0–)1–7; laminae 7–10 × 1.5–2.8 mm. |
Disc florets | 7–20; corollas 8–9.5 mm. |
Phyllaries | 18–28 in 2–3 series, green to tan, lanceolate to elliptic, 10–14 × 1.3–2.7 mm, subequal (outer sometimes slightly longer than inner), outer herbaceous or with herbaceous appendages, inner mostly chartaceous, midnerves (and often 2 collateral nerves) evident, (margins often narrowly membranous, fimbriate or tomentose) apices acute, acuminate to cuspidate, abaxial faces stipitate-glandular. |
Heads | (12–22) usually in (leafy) congested, cymiform or racemiform arrays, rarely borne singly. |
Cypselae | tan to reddish, ellipsoid, 5–7 mm, glabrous or distally hairy; pappi off-white to reddish brown, 7–9 mm. |
2n | = 18. |
Ericameria greenei |
|
Phenology | Flowering summer–fall. |
Habitat | Rocky flats and sparsely wooded slopes |
Elevation | 1500–2200 m [4900–7200 ft] |
Distribution |
CA; ID; OR; WA
|
Discussion | A tomentose entity that was recognized as Haplopappus greenei subsp. mollis differs also in other ways from typical Ericameria greenei. It may merit recognition at some level. A biosystematic and population-level investigation of this complex is needed to better understand the causes and significance of such variation. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 60. |
Parent taxa | |
Sibling taxa | |
Synonyms | Haplopappus greenei, Haplopappus greenei subsp. mollis |
Name authority | (A. Gray) G. L. Nesom: Phytologia 68: 153. (1990) |
Web links |
|