Scabrethia scabra

(Hooker) W. A. Weber

Phytologia 85: 21. 1999.

IllustratedEndemic
Basionym: Wyethia scabra Hooker London J. Bot. 6: 245. 1847
Treatment appears in FNA Volume 21. Treatment on page 99.

Leaf-blades mostly 8–20 cm × 5–20 (–25) mm. Phyllaries: bases ± rounded, apices acuminate or attenuate to linear or filiform. Ray laminae 15–50 mm. Cypselae 7–9 mm; pappi 0.01–0.5 mm. 2n = 38 (subspp. unknown).

Distribution

V21-233-distribution-map.gif

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

Discussion

Subspecies 3 (3 in the flora).

The subspecies of Scabrethia scabra evidently have evolved along with the dissection of the Colorado Plateau.

Selected References

None.

Key

1 Outer phyllaries: chartaceous bases ovate to oblong, 2–4(–6) mm, herbaceous tips attenuate to linear or filiform, 15–30+ mm, margins ± hispid (ciliate), faces glabrous or minutely gland-dotted Scabrethia scabra subsp. attenuata
1 Outer phyllaries: chartaceous bases deltate to ovate, 2–5+ mm, herbaceous tips narrowly triangular to attenuate, 10–20 mm, margins (ciliolate or not) and faces minutely hispidulous to hirtellous or ± coarsely hispid > 2
2 Herbaceous tips of outer phyllaries usually spreading to recurved, margins (not ciliate) and faces minutely hispidulous to hirtellous Scabrethia scabra subsp. canescens
2 Herbaceous tips of outer phyllaries usually ± erect to spreading, margins (± ciliate) and faces ± coarsely hispid Scabrethia scabra subsp. scabra

"broader" is not a number.

... more about "Scabrethia scabra"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
William A. Weber +
(Hooker) W. A. Weber +
bristlelike +
coroniform +
rounded +
Wyethia scabra +
compound +  and simple +
narrowly oblong;linear +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
hairy +  and glabrous +
(3-)4-angled +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Colo. +, N.Mex. +, Utah +  and Wyo. +
glabrescent +, hispid +  and scabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
hemispheric;turbinate +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
nearly +  and sessile +
opposite +  and alternate +
deltate +
2-carpellate +
persistent +
lacerate +  and coroniform +
0.001 cm0.01 mm <br />1.0e-5 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
30 +  and 45 +
unequal +  and subequal +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Scabrethia scabra +
Scabrethia +
species +
cylindric +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
20 cm200 mm <br />0.2 m <br /> (60 cm600 mm <br />0.6 m <br />) +
shrub +  and subshrub +