Porophyllum pygmaeum

D. J. Keil & Morefield

Syst. Bot. 14: 583. 1989.

Endemic
Treatment appears in FNA Volume 21. Treatment on page 234.
Revision as of 22:32, 29 July 2020 by imported>Volume Importer
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Perennials, 5–15 cm; internodes mostly 1–5 (–12) mm. Leaf-blades mostly filiform, 8–15 × 1–2 mm. Phyllaries 5 (–8), ovate to oblong or linear, 8–11 mm. Florets mostly 25–75+; corollas yellow, 7–9 mm. Cypselae 7–8 mm; pappi: longer bristles 6–7 mm. 2n = 24.


Phenology: Flowering spring–summer.
Habitat: Sandy soils, with desert scrub
Elevation: 1300–2100 m

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Porophyllum pygmaeum"
not tailed +, rounded +  and obtuse +
darkened +  and pale +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
D. J. Keil & Morefield +
decurrent +
compound +  and simple +
orbiculate;linear or filiform +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
hirtellous +  and villous +
cylindric +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
1300–2100 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy soils, with desert scrub +
cymiform +, corymbiform +, discoid +  and radiate +
in loose , more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
cylindric;campanulate +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
sessile +  and petiolate +
alternate +  and opposite +
deltate +  and lanceolate +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
dentate to pinnatifid or palmatifid +  and entire +
entire +  and crenate +
2-carpellate +
persistent +
coroniform +
Flowering spring–summer. +
0.8 cm8 mm <br />0.008 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
bearing subulate enations +, hairy +  and bristly +
convex;conic +
5 +  and 20 +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Tageteae +
Porophyllum pygmaeum +
Porophyllum +
species +
cylindric +
slender +
toothed +  and entire +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
120 cm1,200 mm <br />1.2 m <br /> (200 cm2,000 mm <br />2 m <br />) +
shrub +  and subshrub +