Townsendia strigosa

Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 306. 1840.

Endemic
Synonyms: Townsendia strigosa var. prolixa (M. E. Jones) S. L. Welsh
Treatment appears in FNA Volume 20. Treatment on page 199. Mentioned on page 195, 198.

Biennials, (1–) 3–10 (–20) cm. Stems decumbent to erect; internodes 5–25 mm, piloso-strigose to strigillose (surfaces seldom hidden by hairs). Leaves basal and cauline, blades spatulate to oblanceolate or linear, 12–30 (–50) × 2–7 (–9) mm, not fleshy, faces ± strigose to strigillose. Heads at tips of stems (usually surpassed by leaves). Involucres ± campanulate, 5–20 mm diam. Phyllaries 20–24 in 3–4+ series, the longer ± lanceovate to lanceolate, 5–9 mm (l/w = 2.5–5), apices acute to acuminate, abaxial faces strigose. Ray-florets 8–30+; corollas white or pinkish adaxially, laminae 5–14 mm, abaxially usually glabrous, sometimes glandular-puberulent. Disc-florets (8–) 20–80 (–100+); corollas 3.5–5 mm. Cypselae 3–4 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae 12–20+ lanceolate to subulate scales 0.5–1.5+ mm; on disc cypselae 20–35 subulate to setiform scales 3.5–5.5 mm. 2n = 18.


Phenology: Flowering May–Jun.
Habitat: Open sites, sands, shales, clays with desert scrub, junipers, pinyons
Elevation: 1500–2000 m

Distribution

V20-438-distribution-map.gif

Ariz., Colo., N.Mex., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Townsendia strigosa"
not tailed +, rounded +  and obtuse +
distinct +
acute;acuminate +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
Nuttall +
decurrent +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (3 cm30 mm <br />0.03 m <br />) +
spatulate;oblanceolate or linear +
not fleshy +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
not 2-lipped +  and actinomorphic +
pinkish +  and white +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
obovate +  and oblanceolate +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Colo. +, N.Mex. +, Utah +  and Wyo. +
1500–2000 m +
hairy +, less strigose +  and strigillose +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open sites, sands, shales, clays with desert scrub, junipers, pinyons +
glochidiform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
piloso-strigose +  and strigillose +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
campanulate +
glandular-puberulent +  and glabrous +
0.5 cm5 mm <br />0.005 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
cauline +  and basal +
spreading;erect +
lance-deltate +  and lance-oblong +
dentate to pinnatifid +  and entire +
lobed +, toothed +  and entire +
2-carpellate +
persistent +
12 +  and 20 +
Flowering May–Jun. +
less lanceovate +  and lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Trans. Amer. Philos. Soc., n. s. +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
convex;flat +
20 +  and 35 +
subulate +  and setiform +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
exalbuminous +
decumbent +  and erect +
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 +
Townsendia strigosa var. prolixa +
Townsendia strigosa +
Townsendia +
species +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
tree +, shrub +  and subshrub +