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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
from FNA
CA; ID; OR; WA
[WildflowerSearch map]
[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.)

Source FNA vol. 20, p. 60.
Parent taxa 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
Synonyms Haplopappus greenei, Haplopappus greenei subsp. mollis
Name authority (A. Gray) G. L. Nesom: Phytologia 68: 153. (1990)
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