Ericameria lignumviridis (S. L. Welsh) G. L. Nesom

Plants 10–30 cm. Stems erect, green when young, becoming tan, branched, glabrous, resinous. Leaves ascending; blades oblanceolate, 7–30 × 1.5–3 mm, midnerves evident, apices acute to apiculate, faces glabrous, resinous; axillary leaf fascicles usually present, much shorter than subtending leaves. Heads (3–8) in cymiform arrays. Peduncles 1–12 mm (bracts 0–3, scalelike). Involucres obconic, 12–15 × 4–8 mm. Phyllaries 18–28 in 3–4 series, tan, ovate or lanceolate to elliptic, 8–12 × 1–2.5 mm, subequal, outer herbaceous-tipped, inner mostly chartaceous, apices erect, acute or acuminate to cuspidate, abaxial faces glabrous, resinous. Ray florets 5–8; laminae 3–4 × 0.7–2 mm. Disc florets 8–12; corollas 9–10.5 mm. Cypselae tan to reddish, ellipsoid, ca. 5 mm, densely hairy; pappi off-white to brown, 7.5–9 mm.

Haplopappus lignumviridis S. L. Welsh, Rhodora 95: 398, fig. 4. 1993

As originally described, this species was reported as occurring in riparian areas which has been repeated in the Flora of North America and elsewhere. Based on volunteer field work conducted in September of 2007 by Maria Ulloa relating to obtaining pictures of this taxon for the Utah Rare Plant Guide (and subsequently published in April of 2010), it was found that the true nature of its habitat is crevices in igneous rock outcrops and cliffs. Occasionally plants fall into an adjoining wash from the cliffs above, and that may be why it was originally thought to be riparian; its habitat is however not riparian.

Ericameria lignumviridis, common name Greenwood's goldenbush or heath-goldenrod, is a plant species endemic to Sevier County, Utah. It grows in riparian areas alongside Urtica dioica, Salix laevigata and other riverbank plants.

Ericameria lignumviridis is a shrub up to 30 cm (12 inches) tall, with branching stems. Leaves are oblanceolate, up to 30 mm (1.2 inches) long. Flower heads are arranged in cymous fashion. Ray flowers and disc flowers are both yellow.

Ericameria lignumviridis là một loài thực vật có hoa trong họ Cúc. Loài này được (S.L.Welsh) G.L.Nesom mô tả khoa học đầu tiên năm 1995.