Flora of North America species comparison

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Chrysothamnus eremobius

pintwater rabbitbrush
Habit Subshrubs, 10–30 cm; with woody, highly branched caudices, bark whitish to dark gray, finely ridged, ± fibrous with age.
Stems

erect, green becoming whitish, glabrous, ± resinous.
Leaves

ascending to spreading;

petiolate;

blades mostly 3-nerved (nerves reticulate, raised), elliptic to oblanceolate or obovate, 20–80 × (7–)10–25 mm (mostly larger basally, ± reduced distally), flat, apices acute, faces glabrous, gland-dotted.
Involucres

cylindric to turbinate, 6.5–8.8 × 1.8–2.5 mm.
Disc florets

5(–6);

corollas 4–5 mm, lobes 0.8–1.2 mm;

style branches 2.2–2.7 mm, appendages 0.8–1.2 mm.
Phyllaries

19–24(–30) in 3–4 series, in vertical ranks, tan with apical green spot, midnerves evident distally, ovate to lanceolate, 1.5–6 × 0.7–1.5 mm, unequal, chartaceous, apices obtuse to acuminate, flat, faces glabrous.
Heads

in condensed, cymiform arrays, not overtopped by leaves.
Cypselae

cylindric, 2.5–3 mm, faces hairy;

pappi tan, 3.1–3.9 mm.
2n

= 18.

Chrysothamnus eremobius
Phenology Flowering late summer–fall.
Habitat Crevices of limestone cliffs
Elevation 1400–1700 m (4600–5600 ft)
Distribution
from FNA
NV
[BONAP county map]
Discussion

Of conservation concern.

Chrysothamnus eremobius is known only from the Pintwater and Sheep ranges of southern Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 189.
Parent taxa Asteraceae > tribe Astereae > Chrysothamnus
Sibling taxa
C. depressus, C. greenei, C. humilis, C. molestus, C. scopulorum, C. stylosus, C. vaseyi, C. viscidiflorus
Name authority L. C. Anderson: Brittonia 35: 23, fig. 1. (1983)
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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