Geraea canescens

Torrey & A. Gray

Proc. Amer. Acad. Arts 1: 49. 1847.

Common names: Hairy desert-sunflower desert-gold
Illustrated
Synonyms: Geraea canescens var. paniculata (A. Gray) S. F. Blake
Treatment appears in FNA Volume 21. Treatment on page 122. Mentioned on page 119.

Annuals, 10–80 cm; herbage bristly and/or soft-hairy. Leaves petiolate (proximal) or sessile; blades green or gray, lanceolate or ovate to elliptic or oblanceolate, 1–10 cm, bases tapering to wings, margins entire or dentate, apices acute, faces ± canescent. Heads borne singly or in paniculiform arrays. Involucres 7–12 mm. Phyllaries green, narrowly lanceolate to linear (margins shaggy-ciliate), apices acute. Ray-florets 10–21; laminae 1–2 cm. Disc corollas 4–5 mm. Cypselae 6–7 mm; pappi 3–4 mm. 2n = 36.


Phenology: Flowering Oct–May.
Habitat: Sandy desert soils
Elevation: 0–1300 m

Distribution

V21-299-distribution-map.gif

Ariz., Calif., Nev., Utah, Mexico (Baja California), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Geraea canescens"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
Curtis Clark +
Torrey & A. Gray +
bristlelike +
coroniform +
tapering +
compound +  and simple +
gray +  and green +
ovate;elliptic or oblanceolate +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
Hairy desert-sunflower +  and desert-gold +
hairy +  and glabrous +
cuneate +  and compressed +
fertile +  and bisexual +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
fertile +  and bisexual +
Ariz. +, Calif. +, Nev. +, Utah +, Mexico (Baja California) +  and Mexico (Sonora) +
0–1300 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy desert soils +
discoid +  and radiate +
in paniculiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
soft-hairy +  and bristly +
each +  and sessile +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
hemispheric +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
triangular +
dentate +  and entire +
toothed +  and entire +
2-carpellate +
persistent +
subulate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering Oct–May. +
20 +  and 30 +
unequal +  and subequal +
Proc. Amer. Acad. Arts +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Illustrated +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Geraea canescens var. paniculata +
Geraea canescens +
species +
expanded +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
10 cm100 mm <br />0.1 m <br /> (80 cm800 mm <br />0.8 m <br />) +
shrub +  and subshrub +