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.
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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 +
acute;acuminate or obtuse +
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 +
0.2 cm2 mm <br />0.002 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
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 +
ascending-spreading +
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 +