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Ericameria obovata
(Rydb.) G.L. Nesom
Family:
Asteraceae
Rydberg's Heath-Goldenrod
Tony Frates
FNA
Resources
Lowell E. Urbatsch, Loran C. Anderson, Roland P. Roberts, Kurt M. Neubig in Flora of North America (vol. 20)
Plants
20-40 cm.
Stems
erect to ascending, green, becoming tan, branched, stipitate-glandular.
Leaves
ascending; blades obovate to spatulate (flat), 10-30 × 4-12 mm, midnerves evident (1-2 collateral nerves sometimes present, abaxial reticulum of secondary veins often evident), (margins often undulate) apices obtuse, apiculate, faces densely stipitate-glandular; axillary fascicules usually absent.
Heads
in cymiform to racemiform arrays (1-3 cm wide).
Peduncles
1-7 mm (stipitate-glandular).
Involucres
obconic, 6-8 × 4-7 mm.
Phyllaries
22-28 in 4-6 series, tan, ovate to elliptic, 1-6 × 0.5-1.2 mm, strongly unequal, mostly chartaceous, midnerves evident, (margins narrowly membranous, entire or minutely lacerate) apices acute to acuminate, abaxial faces mostly stipitate-glandular, resinous.
Ray florets
4-9; laminae elliptic, 3.5-6 × 1.2-1.8 mm.
Disc florets
9-15; corollas 6.2-6.8 mm.
Cypselae
tan to reddish brown, columnar, 3.5-4.5 mm [ribs unknown], villous;
pappi
tan, 4-5.5 mm.
2
n
=
36.
Flowering late summer-fall. Open rocky soils, mostly associated with desert shrub, pinyon-juniper, and lower ponderosa pine; 1500-3400 m; Utah.
Open Interactive Map
Tony Frates
Tony Frates
Tony Frates
Tony Frates
Tony Frates
Click to Display
50 Total Images
Development supported by National Science Foundation Grants (
DBI 9983132
,
BRC 0237418
,
DBI 0743827
,
DBI 0847966
)
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