Townsendia mensana

M. E. Jones

Contr. W. Bot. 13: 15. 1910.

EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 201. Mentioned on page 195.

Perennials, 1–3 cm (± pulvinate). Stems ± erect; internodes 0.1–1 mm, ± pilose. Leaves basal and cauline, blades narrowly oblanceolate to lance-linear, 5–40+ × 0.6–2.5+ mm, not fleshy, faces ± strigoso-sericeous to strigose. Heads ± sessile. Involucres ± campanulate, 7–10 mm diam. Phyllaries 25–50+ in 4–5+ series, the longer narrowly lanceolate, 6–8+ mm (l/w = 5–6), apices acute, abaxial faces sparsely strigillose or glabrate. Ray-florets 13–21+; corollas white adaxially, laminae 4–8+ mm, glandular-puberulent abaxially. Disc-florets 40–60+; corollas (3.5–) 4.5–6 mm. Cypselae 3–3.5 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae 15–35 subulate to setiform scales 0.5–1.5 or 4–5 mm; on disc cypselae 15–35 subulate to setiform scales 4–6.5 mm.


Phenology: Flowering May.
Habitat: Openings with junipers and pinyons
Elevation: 1700–2700 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Townsendia mensana"
glabrate +  and strigillose +
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 +
M. E. Jones +
decurrent +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
narrowly oblanceolate;lance-linear +
not fleshy +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
not 2-lipped +  and actinomorphic +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
obovate +  and oblanceolate +
fertile +  and bisexual +
fertile +  and bisexual +
1700–2700 m +
hairy +, less strigoso-sericeous +  and strigose +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Openings with junipers and pinyons +
glochidiform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
campanulate +
glandular-puberulent +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cauline +  and basal +
spreading;erect +
lance-deltate +  and lance-oblong +
dentate to pinnatifid +  and entire +
lobed +, toothed +  and entire +
2-carpellate +
persistent +
15 +  and 35 +
Flowering May. +
lanceolate +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Contr. W. Bot. +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
convex;flat +
15 +  and 35 +
subulate +  and setiform +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
exalbuminous +
Endemic +  and Conservation concern +
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 mensana +
Townsendia +
species +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
tree +, shrub +  and subshrub +