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nodding sunray, noddinghead

brittlebush, incienso

Habit Perennials, 10–25 cm (roots swollen, 6–10 cm). Shrubs, 30–150 cm (sap fragrant).
Stems

± subterranean (except peduncles).

branched distally, tomentose, developing smooth barks.

Leaves

basal;

petioles 20–35 mm;

blades green, broadly ovate, 30–40 mm, faces glabrous or substrigose (sometimes rugose).

cauline (clustered near stem tips);

petioles 10–20 mm;

blades silver or gray, ovate to lanceolate, 20–70 mm, apices obtuse or acute, faces tomentose.

Peduncles

hairy.

glabrous except near heads (± yellow).

Involucres

12–22 mm.

4–10 mm.

Ray florets

0.

11–21;

corolla laminae 8–12 mm.

Disc corollas

yellow, 6–8 mm.

yellow or brown-purple, 5–6 mm.

Phyllaries

lanceolate.

lanceolate.

Heads

borne singly (nodding in fruit).

in paniculiform arrays (branching among heads mainly distal).

Cypselae

7–12 mm;

pappi usually 0, rarely of 2 bristlelike awns.

3–6 mm;

pappi 0.

2n

= 36.

= 36.

Encelia nutans

Encelia farinosa

Phenology Flowering Apr. Flowering Feb–May, Aug–Sep.
Habitat Flat areas with heavy soils Coastal scrub, stony desert hillsides
Elevation 1300–1900 m (4300–6200 ft) 0–1000 m (0–3300 ft)
Distribution
from FNA
CO; UT
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; NV; Mexico (Baja California, Baja California Sur, Sinaloa, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

Encelia nutans shares the apically notched and glabrous-faced cypselae of the genus, but its geophyte habit, especially the ephemeral nature of its aboveground parts, is unique in either Encelia or Enceliopsis.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Plants of Encelia farinosa with brown-purple disc corollas, found along the Colorado and Salt rivers, and common in Baja California, are var. phenicodonta. Plants with substrigose leaves, capitulescences branched toward bases rather than distally, and ray florets reduced in both size and number are most often hybrids and backcrosses between E. farinosa and E. frutescens. P. A. Munz (1959) indicated that I. L. Wiggins had reported var. radians Brandegee ex S. F. Blake as occurring in southeastern California; that variety is known only from Baja California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 21, p. 120. FNA vol. 21, p. 121.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Ecliptinae > Encelia Asteraceae > tribe Heliantheae > subtribe Ecliptinae > Encelia
Sibling taxa
E. actoni, E. californica, E. farinosa, E. frutescens, E. resinifera, E. scaposa, E. virginensis
E. actoni, E. californica, E. frutescens, E. nutans, E. resinifera, E. scaposa, E. virginensis
Synonyms Enceliopsis nutans E. farinosa var. phenicodonta
Name authority Eastwood: Zoë 2: 230. (1891) A. Gray ex Torrey: in W. H. Emory, Not. Milit. Reconn., 143. (1848)
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