Townsendia jonesii

(Beaman) Reveal

Great Basin Naturalist 30: 35. 1970.

Endemic
Basionym: Townsendia mensana var. jonesii Beaman Contr. Gray Herb. 183: 88, plate 20, fig. 2. 1957
Treatment appears in FNA Volume 20. Treatment on page 202. Mentioned on page 195, 201.

Perennials, 1–2 (–4) cm (usually ± pulvinate). Stems ± erect; internodes 0.1–1 mm, ± scabrellous to strigose. Leaves basal and cauline, blades ± spatulate to oblanceolate, 7–15 (–35+) × 1–2 (–4+) mm, not fleshy, faces ± scabrellous to strigose. Heads usually ± sessile, sometimes on scapiform peduncles 5–15+ mm. Involucres ± campanulate, 8–14 mm diam. Phyllaries 20–28 in 3–4+ series, the longer ± lanceolate, 4–8 mm (l/w = 2.5–5), sometimes glabrate, apices acute, abaxial faces usually sparsely strigillose. Ray-florets 13–21; corollas white adaxially, laminae 5–7+ mm, ± densely glandular-puberulent abaxially. Disc-florets 40–80+; corollas 4.5–5+ mm. Cypselae 2–3 (–4+) mm, faces hairy, hair tips glochidiform or forked; pappi persistent; on ray cypselae 20–24 subulate to setiform scales 3–4+ mm; on disc cypselae 20–24 subulate to setiform scales 4–6 (–8) mm.


Phenology: Flowering Apr–Jun.
Habitat: Rocky slopes, limestone slopes with pinyons
Elevation: 2100–3000 m

Discussion

The current circumscription of Townsendia jonesii is, perhaps, too lumpy. Some lumps might be better treated as distinct species and/or included within the circum-scription of T. scapigera.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Townsendia jonesii"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
(Beaman) Reveal +
decurrent +
Townsendia mensana var. jonesii +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
less spatulate;oblanceolate +
not fleshy +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
not 2-lipped +  and actinomorphic +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
obovate +  and oblanceolate +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Nev. +  and Utah. +
2100–3000 m +
hairy +  and strigose +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky slopes, limestone slopes with pinyons +
forked +  and glochidiform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
scabrellous +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
campanulate +
glandular-puberulent +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
cauline +  and basal +
spreading;erect +
lance-deltate +  and lance-oblong +
dentate to pinnatifid +  and entire +
lobed +, toothed +  and entire +
2-carpellate +
persistent +
20 +  and 24 +
scapiform +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering Apr–Jun. +
lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Great Basin Naturalist +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
convex;flat +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
20 +  and 24 +
subulate +  and setiform +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
exalbuminous +
villous +, strigose +, strigillose +, sericeous +, piloso-strigose +, piloso-hirsute +, pilose +, hispidulous +, glabrous +  and glabrate +
strigoso-scabrellous +  and scabrellous +
lance-deltate +  and attenuate +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Townsendia jonesii +
Townsendia +
species +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
tree +, shrub +  and subshrub +