Encelia virginensis

A. Nelson

Bot. Gaz. 37: 272. 1904.

Endemic
Synonyms: Encelia frutescens var. virginensis (A. Nelson) S. F. Blake
Treatment appears in FNA Volume 21. Treatment on page 121. Mentioned on page 119.

Shrubs, 50–150 cm. Stems with slender branches from bases, hairy, developing fissured barks. Leaves cauline; petioles 2–7 mm; blades gray-green, narrowly ovate to deltate, 12–25 mm, apices acute or obtuse, faces sparsely canescent and strigose. Heads borne singly. Peduncles canescent. Involucres 9–13 mm. Phyllaries narrowly ovate. Ray-florets 11–21; corolla laminae 8–15 mm. Disc corollas yellow, 5–6 mm. Cypselae 5–8 mm; pappi usually 0, rarely of 1–2 bristlelike awns. 2n = 36.


Phenology: Flowering Apr–Jun, Dec.
Habitat: Desert flats, rocky slopes, roadsides
Elevation: 500–1500 m

Distribution

V21-294-distribution-map.gif

Ariz., Calif., Nev., N.Mex., Utah.

Discussion

In the mountains of the eastern Mojave Desert in California, Encelia virginensis may intergrade with E. actoni at higher elevations, probably as a result of hybridization. Plants of E. virginensis in New Mexico may be adventive.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Encelia virginensis"
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. Nelson +
bristlelike +
1 +  and 2 +
coroniform +
fissured +
cuneate +
compound +  and simple +
narrowly ovate;deltate +
1.2 cm12 mm <br />0.012 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 +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
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. +, N.Mex. +  and Utah. +
500–1500 m +
strigose +  and canescent +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Desert flats, rocky 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 +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
triangular +
2-carpellate +
persistent +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering Apr–Jun, Dec. +
18 +  and 30 +
unequal +  and subequal +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Encelia frutescens var. virginensis +
Encelia virginensis +
species +
expanded +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +