Chrysothamnus viscidiflorus subsp. viscidiflorus

Endemic
Synonyms: Chrysothamnus viscidiflorus var. latifolius (D. C. Eaton) Greene Chrysothamnus viscidiflorus subsp. pumilus Chrysothamnus viscidiflorus var. stenophyllus (A. Gray) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 193. Mentioned on page 192.

Plants 50–120 cm. Stems glabrous. Leaf-blades (spreading to deflexed) green to bluish or yellowish green, linear to lanceolate, 10–75 × 1–10 mm, usually twisted, flat to sulcate, margins often scabro-ciliate, apices acute, often apiculate, faces glabrous. Heads in congested cymiform arrays. Involucres obconic to narrowly cylindric, 5.5–7 mm. Phyllaries 12–18 in (2–) 3 (–4) series, in weak vertical ranks, subapical green patches often present, midnerves obscure to evident distally or throughout, usually keeled, lanceolate to elliptic, unequal, margins scarious, eciliate or ciliolate, apices slightly thickened distally, faces glabrous. Disc-florets 4–14; corollas 5–6.5 mm, lobes 1–1.5 mm. 2n = 18, 27, 36, 45, 54.


Phenology: Flowering summer–fall.
Habitat: Alpine taluses
Elevation: 900–4000 m

Distribution

V20-423-distribution-map.gif

Ariz., Calif., Colo., Idaho, Mont., Nebr., Nev., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo.

Discussion

Diploids of subsp. viscidiflorus with relatively fewer florets per head and narrower involucres have been called var. stenophyllus (L. C. Anderson 1980).

Selected References

None.

Lower Taxa

None.
54 +, 45 +, 36 +, 27 +  and 18 +
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 +
(Hooker) Nuttall +
gray +  and whitish tan +
decurrent +
Crinitaria viscidiflora +
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 +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
tan +  and reddish-brown +
5-angled +  and turbinate +
fertile +  and bisexual +
Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nebr. +, Nev. +, N.Mex. +, Oreg. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
900–4000 m +
resinous +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Alpine taluses +
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 />) +
obconic;narrowly cylindric +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
sulcate +  and twisted +
green +  and bluish or yellowish green +
1 cm10 mm <br />0.01 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
erect;spreading +
triangular +  and lanceolate +
ciliolate +  and eciliate +
keeled +, convex +, flat +  and undulate +
1mm +  and 5mm +
obscure +  and evident +
lanceolate +  and elliptic +
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 +
Trans. Amer. Philos. Soc., n. s. +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
resinous +
resin-dotted +, tan +  and green +
appendaged +  and truncate +
papillate +  and smooth +
Chrysothamnus viscidiflorus var. latifolius +, Chrysothamnus viscidiflorus subsp. pumilus +  and Chrysothamnus viscidiflorus var. stenophyllus +
Chrysothamnus viscidiflorus subsp. viscidiflorus +
Chrysothamnus viscidiflorus +
subspecies +
campanulate +
perennial +, biennial +  and annual +