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.
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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 +