Chrysothamnus viscidiflorus subsp. axillaris

(D. D. Keck) L. C. Anderson

Great Basin Naturalist 40: 118. 1980.

Common names: Inyo rabbitbrush
Endemic
Basionym: Chrysothamnus axillaris D. D. Keck Aliso 4: 104. 1958
Treatment appears in FNA Volume 20. Treatment on page 192.

Plants 10–50 cm. Stems glabrous. Leaf-blades green, 1-nerved, filiform, terete, 10–30 × 0.5–1 mm, not twisted, margins obscurely involute, not noticeably ciliate, apices acicular, faces hairy. Heads in rounded cymiform arrays. Involucres ± turbinate to obconic, 5–6 mm. Phyllaries 14–24 in 4–5 series, in 4–5 weak vertical ranks, (spreading at maturity) green to brown subapical patch, midnerves glandular-thickened distally, convex or weakly keeled, broadly linear to linear-oblong, unequal, margins scarious, eciliate or distally erose-ciliolate, apices sharply acute or apiculate, flat, faces glabrous. Disc-florets 3–5; corollas 3.5–5 mm, lobes 1–1.2 mm. 2n = 18.


Phenology: Flowering summer–fall.
Habitat: Desert slopes in granitic sand
Elevation: 1300–2000 m

Distribution

V20-419-distribution-map.gif

Ariz., Calif., Colo., Nev., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
rounded +
Lowell E. Urbatsch +, Roland P. Roberts +  and Kurt M. Neubig +
(D. D. Keck) L. C. Anderson +
gray +  and whitish tan +
decurrent +
Chrysothamnus axillaris +
twisted +  and sulcate +
1 cm10 mm <br />0.01 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
linear;lanceolate +
0.5mm;10mm +
rugulose +  and muricate +
barbellulate +  and barbellate +
Inyo rabbitbrush +
not 2-lipped +  and actinomorphic +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
tan +  and reddish-brown +
5-angled +  and turbinate +
fertile +  and bisexual +
Ariz. +, Calif. +, Colo. +, Nev. +  and Utah. +
1300–2000 m +
resinous +
gland-dotted +
glabrous +  and hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Desert slopes in granitic sand +
in condensed cymiform clusters +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
less turbinate;obconic +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not twisted +  and 1-nerved +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
erect;spreading +
triangular +  and lanceolate +
erose-ciliolate +  and eciliate +
keeled +, convex +, flat +  and undulate +
1mm +  and 5mm +
weakly keeled broadly linear +  and linear-oblong +
glandular-thickened +
0.5mm +  and 1.2mm +
2-carpellate +
persistent +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering summer–fall. +
green +  and brown +
lanceolate +  and ovate or obovate +
Great Basin Naturalist +
4 +  and 5 +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
resinous +
resin-dotted +, tan +  and green +
appendaged +  and truncate +
papillate +  and smooth +
Vanclevea +
Chrysothamnus viscidiflorus subsp. axillaris +
Chrysothamnus viscidiflorus +
subspecies +
campanulate +
perennial +, biennial +  and annual +