Porophyllum greggii

A. Gray

Smithsonian Contr. Knowl. 3(5): 120. 1852.

Endemic
Treatment appears in FNA Volume 21. Treatment on page 234.

Perennials, 15–30 cm; internodes mostly 10–20+ mm. Leaf-blades mostly filiform, 20–60 × 1–2 mm. Phyllaries 5, ovate to oblong or elliptic, 9–12 mm. Florets mostly 50–80+; corollas yellow, 7.5–12 mm. Cypselae 7–8 mm; pappi: longer bristles 8–10 mm. 2n = 72.


Phenology: Flowering spring–fall.
Habitat: Open, rocky sites, grasslands and desert scrub
Elevation: 1200–2000 m

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Porophyllum greggii"
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 +
A. Gray +
decurrent +
compound +  and simple +
orbiculate;linear or filiform +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
0.75 cm7.5 mm <br />0.0075 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
hirtellous +  and villous +
cylindric +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
1200–2000 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open, rocky sites, grasslands and desert scrub +
cymiform +, corymbiform +, discoid +  and radiate +
in loose , more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
cylindric;campanulate +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
sessile +  and petiolate +
alternate +  and opposite +
deltate +  and lanceolate +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
dentate to pinnatifid or palmatifid +  and entire +
entire +  and crenate +
2-carpellate +
persistent +
coroniform +
Flowering spring–fall. +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Smithsonian Contr. Knowl. +
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 greggii +
Porophyllum +
species +
cylindric +
slender +
toothed +  and entire +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
120 cm1,200 mm <br />1.2 m <br /> (200 cm2,000 mm <br />2 m <br />) +
shrub +  and subshrub +