Flora of North America species comparison

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Ericameria linearis

linear-leaf discoid gumweed, Wyoming goldenbush
Habit Plants 10–40 cm.
Stems

erect to spreading, green when young, becoming brown, branched proximally, densely floccose-tomentose, eglandular.
Leaves

ascending;

blades linear (adaxially sulcate), 10–30 × 1–2 mm, midnerves evident, apices acute, faces mostly densely tomentose, stipitate-glandular;

sometimes with axillary leaf fascicles.
Peduncles

2–20 mm (usually leafy).
Involucres

obconic, 9–11 × 6–9 mm.
Ray florets

0.
Disc florets

10–22;

corollas 9–11 mm.
Phyllaries

20–30 in 2–3 series, green to tan, oblong to lanceolate, 5–10 × 0.8–1.5 mm, subequal, mostly chartaceous, outer herbaceous or herbaceous-tipped, midnerves usually evident, apices acute to acuminate, abaxial faces hairy, stipitate-glandular.
Heads

borne singly or in cymiform arrays.
Cypselae

brownish, narrowly oblong, 5–6 mm, densely hairy;

pappi tan, 8–10 mm.

Ericameria linearis
Phenology Flowering late summer–fall.
Habitat Dry, stony slopes
Elevation ca. 2300 m (ca. 7500 ft)
Distribution
from FNA
MT; WY
[BONAP county map]
Source FNA vol. 20, p. 61.
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. 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 Macronema lineare, E. discoidea var. linearis, Haplopappus macronema subsp. linearis, Haplopappus macronema var. linearis
Name authority (Rydberg) R. P. Roberts & Urbatsch: Sida 21: 1560. (2005)
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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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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