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Greene's goldenbush, Greene's goldenweed, Greene's heath goldenweed, rabbitbrush

Winward's goldenbush

Habit Plants 10–30 cm. Plants 5–20 cm.
Stems

erect to ascending, green when young, soon reddish to brownish, branched, glabrous or tomentose, stipitate-glandular.

stems prostrate or ascending to erect, green when young (± concealed by tomentum), becoming tan to brown, moderately branched, densely floccose-tomentose, eglandular.

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.

ascending;

blades elliptic or oblanceolate (flat), 6–15 × 2.5–5 mm, midnerves prominent, apices acute (often curved downward), faces densely silvery white floccose-tomentose, eglandular;

fascicles absent.

Peduncles

usually less than 20, rarely to 100 mm (leafy).

1–5 mm (tomentose, bracts 0–3, phyllary-like).

Involucres

broadly campanulate, 8–12 × 12–15 mm.

obconic, 9–12 × 3–4 mm.

Ray florets

(0–)1–7;

laminae 7–10 × 1.5–2.8 mm.

0.

Disc florets

7–20;

corollas 8–9.5 mm.

4–9;

corollas ca. 9 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.

11–15 in 2–3 series, lanceolate or elliptic to oblanceolate, 1.5–5 × 0.8–1.3 mm, subequal, outer herbaceous or herbaceous-tipped, inner mostly chartaceous or herbaceous-tipped, midnerves conspicuous, raised, (margins: outer herbaceous, entire, floccose-tomentose, inner narrowly scarious, minutely lacerate) apices acute to acuminate, outer abaxial faces floccose-tomentose, inner glabrate.

Heads

(12–22) usually in (leafy) congested, cymiform or racemiform arrays, rarely borne singly.

usually borne singly, sometimes (2–3) in racemiform arrays (5–20 mm wide).

Cypselae

tan to reddish, ellipsoid, 5–7 mm, glabrous or distally hairy;

pappi off-white to reddish brown, 7–9 mm.

tan to brown, narrowly oblanceoloid, 5–7 mm (5-ribbed), densely sericeous;

pappi tan, 8–9 mm.

2n

= 18.

Ericameria greenei

Ericameria winwardii

Phenology Flowering summer–fall. Flowering late summer–fall.
Habitat Rocky flats and sparsely wooded slopes Silty-clay and clay-shale slopes
Elevation 1500–2200 m (4900–7200 ft) 2000–2200 m (6600–7200 ft)
Distribution
from FNA
CA; ID; OR; WA
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; WY
[BONAP county map]
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.)

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 60. FNA vol. 20, p. 77.
Parent taxa Asteraceae > tribe Astereae > Ericameria Asteraceae > tribe Astereae > Ericameria
Sibling taxa
E. albida, E. arborescens, E. arizonica, E. bloomeri, E. brachylepis, E. cervina, E. compacta, E. cooperi, E. crispa, E. cuneata, E. discoidea, E. ericoides, E. fasciculata, E. gilmanii, E. laricifolia, E. lignumviridis, E. linearifolia, E. linearis, E. nana, E. nauseosa, E. obovata, E. ophitidis, E. palmeri, E. paniculata, E. parishii, E. parryi, E. pinifolia, E. resinosa, E. suffruticosa, E. teretifolia, E. watsonii, E. winwardii, E. zionis
E. albida, E. arborescens, E. arizonica, E. bloomeri, E. brachylepis, E. cervina, E. compacta, E. cooperi, E. crispa, E. cuneata, E. discoidea, E. ericoides, E. fasciculata, E. gilmanii, E. greenei, E. laricifolia, E. lignumviridis, E. linearifolia, E. linearis, E. nana, E. nauseosa, E. obovata, E. ophitidis, E. palmeri, E. paniculata, E. parishii, E. parryi, E. pinifolia, E. resinosa, E. suffruticosa, E. teretifolia, E. watsonii, E. zionis
Synonyms Haplopappus greenei, Haplopappus greenei subsp. mollis E. discoidea var. winwardii
Name authority (A. Gray) G. L. Nesom: Phytologia 68: 153. (1990) (Dorn & Delmatier) R. P. Roberts & Urbatsch: Sida 21: 1562. (2005)
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