Townsendia hookeri

Beaman

Contr. Gray Herb. 183: 95, plates 17, 20, figs. 5, 6. 1957.

IllustratedEndemic
Synonyms: Townsendia nuttallii Dorn
Treatment appears in FNA Volume 20. Treatment on page 200. Mentioned on page 195.

Perennials, 1–3 cm (± pulvinate). Stems ± erect; internodes 0.1–1 mm, ± strigose. Leaves basal and cauline, blades narrowly oblanceolate to linear, 5–25 (–40+) × 1–1.5 (–3) mm, fleshy, faces ± strigoso-sericeous, little, if at all. Heads ± sessile. Involucres ± campanulate, 8–18+ mm diam. Phyllaries 50–65+ in 5+ series, the longer ± lance-linear, 7–11 (–13) mm (l/w = 6–9), apices attenuate, abaxial faces sparsely strigose or glabrate. Ray-florets 15–35; corollas white adaxially, laminae 8–12+ mm, glabrous abaxially. Disc-florets 120–180+; corollas 4–5 (–6+) mm. Cypselae 3.5–4.5 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae ca. 30 subulate to setiform scales (1–) 5–7 mm; on disc cypselae ca. 30 subulate to setiform scales 5.5–7.5+ mm. 2n = 18.


Phenology: Flowering Mar–Jun.
Habitat: Gravelly benches, sandy slopes
Elevation: 700–1800 m

Distribution

V20-440-distribution-map.gif

Alta., B.C., Sask., Yukon, Alaska, Colo., Idaho, Mont., Nebr., N.Dak., S.Dak., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Townsendia hookeri"
glabrate +  and strigose +
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 +
decurrent +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
narrowly oblanceolate;linear +
1mm;1.5mm +
rugulose +  and muricate +
barbellulate +  and barbellate +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.4 cm4 mm <br />0.004 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 +
Alta. +, B.C. +, Sask. +, Yukon +, Alaska +, Colo. +, Idaho +, Mont. +, Nebr. +, N.Dak. +, S.Dak. +, Utah +  and Wyo. +
700–1800 m +
hairy +  and strigoso-sericeous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Gravelly benches, sandy slopes +
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 />) +
0.8 cm8 mm <br />0.008 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
campanulate +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
cauline +  and basal +
spreading;erect +
lance-deltate +  and lance-oblong +
dentate to pinnatifid +  and entire +
lobed +, toothed +  and entire +
2-carpellate +
persistent +
Flowering Mar–Jun. +
1.1 cm11 mm <br />0.011 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
subulate +, oblanceolate +, obovate +, linear +, lanceovate +, lance-linear +, filiform +, ovate +  and lanceolate +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Contr. Gray Herb. +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
convex;flat +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
subulate +  and setiform +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
exalbuminous +
Illustrated +  and Endemic +
strigoso-scabrellous +  and scabrellous +
lance-deltate +  and attenuate +
appendaged +  and truncate +
papillate +  and smooth +
Townsendia nuttallii +
Townsendia hookeri +
Townsendia +
species +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
tree +, shrub +  and subshrub +