Encelia frutescens

(A. Gray) A. Gray

Proc. Amer. Acad. Arts 8: 657. 1873.

Basionym: Simsia frutescens A. Gray in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 89. 1859
Treatment appears in FNA Volume 21. Treatment on page 120. Mentioned on page 119, 122.

Subshrubs or shrubs, 50–150 cm. Stems with slender branches from trunks, glabrous, developing fissured barks. Leaves cauline; petioles 2–7 mm; blades green, elliptic or narrowly ovate, 10–25 mm, apices obtuse, faces strigose. Heads borne singly. Peduncles strigose. Involucres 6–12 mm. Phyllaries lanceolate. Ray-florets 0. Disc corollas yellow, 5–6 mm. Cypselae 6–9 mm; pappi 0 or of 2 bristlelike awns. 2n = 36.


Phenology: Flowering Feb–May, Aug–Sep.
Habitat: Desert washes, flats, slopes, roadsides
Elevation: 0–800 m

Distribution

V21-292-distribution-map.gif

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

Discussion

Plants of Encelia frutescens in the flora area are var. frutescens; var. glandulosa C. Clark, with glandular, strigose leaves, is found in northeastern Baja California and is not expected here.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Encelia frutescens"
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 +
Curtis Clark +
(A. Gray) A. Gray +
bristlelike +
coroniform +
fissured +
cuneate +
Simsia frutescens +
compound +  and simple +
ovate;elliptic +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
brown-purple +  and yellow +
hairy +  and glabrous +
obovate +  and cuneate +
fertile +  and bisexual +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
fertile +  and bisexual +
Ariz. +, Calif. +, Nev. +, Mexico (Baja California) +  and Mexico (Sonora) +
0–800 m +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Desert washes, flats, slopes, roadsides +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
hemispheric +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
triangular +
2-carpellate +
persistent +
of 2 bristlelike awns +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering Feb–May, Aug–Sep. +
18 +  and 30 +
unequal +  and subequal +
Proc. Amer. Acad. Arts +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
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 +
Encelia frutescens +
species +
expanded +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
shrub +  and subshrub +