Ericameria cuneata

(A. Gray) McClatchie

Erythea 2: 124. 1894.

Illustrated
Basionym: Haplopappus cuneatus A. Gray Proc. Amer. Acad. Arts 8: 635. 1873 (as Aplopappus)
Treatment appears in FNA Volume 20. Treatment on page 57. Mentioned on page 52, 62.

Plants 10–100 cm. Stems spreading to ascending or erect, green when young, highly branched, glabrous, gland-dotted (sometimes in pits), resinous. Leaves ascending-spreading; blades cuneate to spatulate, 2–25 × 2–16 mm, midnerves evident or faint, (margins usually flat) apices rounded, obtuse, or retuse, sometimes mucronate, faces glabrous, gland-dotted (in pits), thickly resinous; axillary leaf fascicles rarely present. Heads usually borne singly, sometimes in rounded, cymiform arrays (to 5 × 8 cm). Peduncles 2–10 mm (bracts 0–10+, scalelike). Involucres turbinate to narrowly campanulate, 6–12.5 × 4–14 mm. Phyllaries 20–60 in 3–7 series, tan, ovate to lanceolate, 2–6 × 0.5–2.5 mm, unequal, mostly chartaceous, sometimes each with herbaceous subapical patch, midnerves evident on proximal 1/2 or throughout, subapical resin ducts 0 or slightly darker, thickened and expanded, (margins membranous, weakly lacerate) apices acute to acuminate or obtuse, abaxial faces glabrous. Ray-florets 0 (–7); laminae 3–4.3 × 1–1.5 mm. Disc-florets 7–70; corollas ca. 5.5 mm. Cypselae tan to brown, turbinate, 2.5–3 mm, sericeous to villous; pappi off-white to brown, 6.5–8 mm. 2n = 18.

Distribution

V20-86-distribution-map.gif

Ariz., Calif., N.Mex., Nev., nw Mexico

Discussion

Varieties 3 (3 in the flora).

Variety spathulata extends into Mexico. It is reported to hybridize with Ericameria nauseosa.

Key

1 Disc florets 36–70 (San Diego County, California) Ericameria cuneata var. macrocephala
1 Disc florets 7–33 > 2
2 Leaves sessile, blades cuneate, largest 3–14(–18) × 2–9(–12) Ericameria cuneata var. cuneata
2 Leaves petiolate, blades spatulate, largest (9–)12–25 × 4–16 Ericameria cuneata var. spathulata

"fine" is not a number.

... more about "Ericameria cuneata"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) McClatchie +
decurrent +
Haplopappus cuneatus +
compound +  and simple +
0.2 cm2 mm <br />0.002 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
cuneate;spatulate +
2mm;16mm +
rugulose +  and muricate +
tan +  and reddish +
subequal +
not 2-lipped +  and actinomorphic +
5.5 cm55 mm <br />0.055 m <br /> (?) +
tan +  and brown +
sericeous +  and villous +
turbinate +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Calif. +, N.Mex. +, Nev. +  and nw Mexico +
resinous +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
thyrsiform +, paniculiform +, branched +, racemiform +, cymiform +, discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (1.25 cm12.5 mm <br />0.0125 m <br />) +
turbinate;narrowly campanulate +
0.4 cm4 mm <br />0.004 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
3mm;4.3mm +
1mm;1.5mm +
sessile +  and petiolate +
erect;spreading or reflexed +
deltate +  and triangular +
evident +  and faint +
2-carpellate +
off-white +  and brown +
persistent +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
ovate +  and lanceolate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
bearing subulate enations +, hairy +  and bristly +
urbatsch1976a +
exalbuminous +
Illustrated +
resinous +
gland-dotted +  and green +
spreading +  and ascending or erect +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus sect. Asiris +, Haplopappus sect. Ericameria +, Haplopappus sect. Macronema +  and Haplopappus sect. Stenotopsis +
Ericameria cuneata +
Ericameria +
species +
campanulate +
perennial +, biennial +  and annual +