Ericameria greenei

(A. Gray) G. L. Nesom

Phytologia 68: 153. 1990.

Common names: Greene’s goldenbush rabbitbrush
Endemic
Basionym: Haplopappus greenei A. Gray Proc. Amer. Acad. Arts 16: 80. 1880 (as Aplopappus)
Synonyms: Haplopappus greenei subsp. mollis (A. Gray) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 60. Mentioned on page 52.

Plants 10–30 cm. Stems erect to ascending, green when young, soon reddish to brownish, branched, glabrous or tomentose, stipitate-glandular. Leaves mostly erect or ascending; blades spatulate (flat), 15–30 × 3–7 mm, midnerves (and sometimes 2 fainter, collateral nerves) evident (slightly raised abaxially), apices obtuse, mucronate, faces glabrous or tomentose and/or stipitate-glandular; axillary fascicles absent. Heads (12–22) usually in (leafy) congested, cymiform or racemiform arrays, rarely borne singly. Peduncles usually less than 20, rarely to 100 mm (leafy). Involucres broadly campanulate, 8–12 × 12–15 mm. Phyllaries 18–28 in 2–3 series, green to tan, lanceolate to elliptic, 10–14 × 1.3–2.7 mm, subequal (outer sometimes slightly longer than inner), outer herbaceous or with herbaceous appendages, inner mostly chartaceous, midnerves (and often 2 collateral nerves) evident, (margins often narrowly membranous, fimbriate or tomentose) apices acute, acuminate to cuspidate, abaxial faces stipitate-glandular. Ray-florets (0–) 1–7; laminae 7–10 × 1.5–2.8 mm. Disc-florets 7–20; corollas 8–9.5 mm. Cypselae tan to reddish, ellipsoid, 5–7 mm, glabrous or distally hairy; pappi off-white to reddish-brown, 7–9 mm. 2n = 18.


Phenology: Flowering summer–fall.
Habitat: Rocky flats and sparsely wooded slopes
Elevation: 1500–2200 m

Distribution

V20-94-distribution-map.gif

Calif., Idaho, Oreg., Wash.

Discussion

A tomentose entity that was recognized as Haplopappus greenei subsp. mollis differs also in other ways from typical Ericameria greenei. It may merit recognition at some level. A biosystematic and population-level investigation of this complex is needed to better understand the causes and significance of such variation.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Ericameria greenei"
stipitate-glandular +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
racemiform +, cymiform +  and congested +
indeterminate +  and determinate +
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) G. L. Nesom +
decurrent +
Haplopappus greenei +
compound +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
spatulate +
3mm;7mm +
rugulose +  and muricate +
tan +  and reddish +
subequal +
Greene’s goldenbush +  and rabbitbrush +
not 2-lipped +  and actinomorphic +
0.8 cm8 mm <br />0.008 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
tan +  and reddish +
hairy +  and glabrous +
ellipsoid +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +, Idaho +, Oreg. +  and Wash. +
1500–2200 m +
resinous +
gland-dotted;gland-dotted +
stipitate-glandular +, tomentose +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky flats and sparsely wooded slopes +
thyrsiform +, paniculiform +, branched +, racemiform +, cymiform +, discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1.5mm;2.8mm +
sessile +  and petiolate +
erect;spreading or reflexed +
deltate +  and triangular +
with herbaceous appendages +  and herbaceous +
2-carpellate +
off-white +  and reddish-brown +
persistent +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering summer–fall. +
green +  and tan +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
lanceolate +  and elliptic +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
resinous +
reddish +  and brownish +
erect +  and ascending +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus greenei subsp. mollis +
Ericameria greenei +
Ericameria +
species +
campanulate +
perennial +, biennial +  and annual +