The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Watson's goldenbush

Habit Plants 5–40 cm.
Stems

erect to spreading (close to the ground), green when young, becoming pale reddish brown, highly branched, coarsely long-stipitate-glandular.

Leaves

(crowded) ascending;

blades elliptic to oblanceolate, 10–25 × 3–8 mm, midnerves evident (1–2 fainter, collateral nerves often present), (margins undulate) apices acute, apiculate, faces long-stipitate-glandular;

fascicles usually absent, (sometimes of 1–3 reduced leaves).

Peduncles

1–12 mm (bracts 3–20, crowded, leafy, grading into phyllaries).

Involucres

broadly obconic, 6–8 × 4–7 mm.

Ray florets

4–8;

laminae elliptic, 6–9 × 1–2 mm.

Disc florets

12–22;

corollas 5.5–6.5 mm.

Phyllaries

25–30 in 3–4 series, green to tan, ovate to oblong, 4–8 × 0.7–1.5 mm, unequal, outer herbaceous or with herbaceous appendages, inner mostly chartaceous, midnerves usually evident, (margins entire, outer often herbaceous, inner scarious) apices acute to acuminate or attenuate, abaxial faces mostly stipitate-glandular.

Heads

usually in cymiform arrays.

Cypselae

tan to brown, narrowly turbinate, 3–4.5 mm (usually 5-ribbed), moderately sericeous;

pappi tan, 4–5.5 mm.

2n

= 18.

Ericameria watsonii

Phenology Flowering late summer–fall.
Habitat Rock outcrops, desert scrub, pinyon-juniper, ponderosa pine communities
Elevation 1300–3400 m (4300–11200 ft)
Distribution
from FNA
AZ; NV; UT
[BONAP county map]
Source FNA vol. 20, p. 77.
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. resinosa, E. suffruticosa, E. teretifolia, E. winwardii, E. zionis
Synonyms Haplopappus watsonii
Name authority (A. Gray) G. L. Nesom: Phytologia 68: 152. (1990)
Web links