Flora of North America species comparison

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Ericameria winwardii

Ericameria resinosa

Winward's goldenbush

Columbia goldenweed, Columbian goldenbush, Columbian heath goldenweed
Habit Plants 5–20 cm. Plants 30–50 cm.
Stems

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

erect to spreading, green when young, fastigiately branched, glabrous or sparsely hairy, resinous.
Leaves

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.

mostly ascending to spreading, often recurved distally;

blades filiform to narrowly oblanceolate (adaxially sulcate), 10–25 × 0.5–1.5 mm, midnerves obscure, apices apiculate, faces glabrous, resinous (axillary fascicles usually present).
Peduncles

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

1–10 mm (bracts 0–15+).
Involucres

obconic, 9–12 × 3–4 mm.

obconic, 5.5–8 × 3–5 mm.
Ray florets

0.

3–7;

laminae (white) 5.5–7 × 1.5–2 mm.
Disc florets

4–9;

corollas ca. 9 mm.

10–15;

corollas (white) 6–8 mm.
Phyllaries

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.

22–34 in 4–5 series, green to tan, lanceolate to oblong, 1–6 × 0.5–1.5 mm, strongly unequal (sometimes outer subequal), mostly chartaceous, outer herbaceous or apically so (mid bodies often apically obtuse to notched, with subulate appendages), midnerves evident, (margins narrowly membranous, entire or serrulate, often ciliolate) apices acute to attenuate (outer often squarrose), abaxial faces glabrous, resinous.
Heads

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

in loose, cymiform arrays (1–4 cm wide).
Cypselae

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

pappi tan, 8–9 mm.

tan to brown, narrowly turbinate, 4.5–5 mm, moderately to densely sericeous;

pappi off-white to brown, 5.8–7.2 mm.
2n

= 18.

Ericameria winwardii

Ericameria resinosa
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Silty-clay and clay-shale slopes Rocky plains, steep hillsides, and cliff faces, often on basalt
Elevation 2000–2200 m (6600–7200 ft) 100–1000 m (300–3300 ft)
Distribution
from FNA
ID; WY
[BONAP county map]
from FNA
ID; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 77. FNA vol. 20, p. 76.
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. 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
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. suffruticosa, E. teretifolia, E. watsonii, E. winwardii, E. zionis
Synonyms E. discoidea var. winwardii Haplopappus resinosus
Name authority (Dorn & Delmatier) R. P. Roberts & Urbatsch: Sida 21: 1562. (2005) Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 319. (1840)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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