Enceliopsis argophylla

(D. C. Eaton) A. Nelson

Bot. Gaz. 47: 433. 1909.

Endemic
Basionym: Tithonia argophylla D. C. Eaton in S. Watson, Botany (Fortieth Parallel), 423. 1871
Treatment appears in FNA Volume 21. Treatment on page 112.

Perennials, 15–80 cm; herbage silvery, hairs fine, ± appressed. Leaves: petioles winged, wings merging with blades; blades rhombic or widely elliptic, 4–10 × 2–8 cm. Peduncles 30–80 cm. Involucres 15–25 mm. Phyllaries in 4–6 series, lanceolate to ovate, apices acuminate. Ray-florets 20–35; corollas deep yellow, laminae 12–30 mm (1–1.2 times disc diams.). Cypselae 9–13 × 4–5 mm, hirsute; pappi usually of 2 awns 1–2 mm (plus minute scales or teeth), sometimes 0.


Phenology: Flowering Apr–May.
Habitat: Stony plains, hillsides
Elevation: 1000–1500 m

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number."broader" is not a number.

... more about "Enceliopsis argophylla"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
acuminate +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
Curtis Clark +
(D. C. Eaton) A. Nelson +
bristlelike +
coroniform +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
cuneate to nearly +  and cuneate +
Tithonia argophylla +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
elliptic;rhombic +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
cuneate +, flattened +  and compressed +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +  and Nev. +
1000–1500 m +
silky-velutinous +  and puberulent +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Stony plains, hillsides +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
hemispheric +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (3 cm30 mm <br />0.03 m <br />) +
sessile +  and petiolate +
triangular +
2-carpellate +
persistent +
30 cm300 mm <br />0.3 m <br /> (80 cm800 mm <br />0.8 m <br />) +
Flowering Apr–May. +
30 +  and 65 +
unequal +  and subequal +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
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 +
Enceliopsis argophylla +
Enceliopsis +
species +
expanded +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
15 cm150 mm <br />0.15 m <br /> (80 cm800 mm <br />0.8 m <br />) +
200 cm2,000 mm <br />2 m <br /> (400 cm4,000 mm <br />4 m <br />) +
shrub +  and subshrub +