Flora of North America species comparison

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Ericameria resinosa

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

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

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

1–10 mm (bracts 0–15+).
Involucres

obconic, 5.5–8 × 3–5 mm.
Ray florets

3–7;

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

10–15;

corollas (white) 6–8 mm.
Phyllaries

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

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

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 resinosa
Phenology Flowering late summer–fall.
Habitat Rocky plains, steep hillsides, and cliff faces, often on basalt
Elevation 100–1000 m (300–3300 ft)
Distribution
from FNA
ID; OR; WA
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 20, p. 76.
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. 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 Haplopappus resinosus
Name authority 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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