Eucalyptus polyanthemos

Schauer in W. G. Walpers

Repert. Bot. Syst. 2: 924. 1843.

Common names: Silver dollar gum red box
Treatment appears in FNA Volume 10.

Trees, to 25 m; trunk gray or tan, smooth or rough; bark rough, fibrous, and persistent, or smooth and shed in flakes or irregular strips. Leaves: petiole 1–2.5 cm; blade grayish green, silver, or bluish green, round, elliptic, or ovate, 5–10 × 1.5–5 cm, surfaces occasionally glau­cous. Peduncles 1–4 cm. Inflorescences 5–7-flowered, terminal or axillary, umbels in panicles. Flowers: hypanthium ovoid to obconic, ca. 4 mm, length ca. 2 times calyptra; calyptra conic to hemispheric; stamens white; anthers rigid on filaments, adnate, absent on outer filaments. Capsules ovoid or subpyriform, 5–6 mm, to 6 mm wide, glaucous; valves 3 or 4, included.


Phenology: Flowering winter–spring.
Habitat: Disturbed coastal urban areas.
Elevation: 0–200 m.

Distribution

Introduced; Calif., se Australia

Discussion

Eucalyptus polyanthemos is known from the San Joaquin Valley, Central Coast, San Francisco Bay Area, Outer South Coast Ranges, South Coast, Santa Cata­lina Islands, and Western Transverse Ranges.

Juvenile, adult, and transitional leaves are occasion­ally found in crowns of mature naturalized trees.

Selected References

None.

Lower Taxa

None.
... more about "Eucalyptus polyanthemos"
dorsifixed +  and basifixed +
Matt Ritter +  and Leslie R. Landrum +
Schauer in W. G. Walpers +
persistent +
bluish green +, silver +  and grayish green +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
ovate +, elliptic +  and round +
submembranous +, papery +  and leathery +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
conic +  and hemispheric +
fused +  and distinct +
subpyriform +  and ovoid +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0 cm0 mm <br />0 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Silver dollar gum +  and red box +
Calif. +  and se Australia +
0–200 m. +
pedicellate +, sessile +, 5-merous +  and 4-merous +
unisexual +  and bisexual +
brown +  and gray +
not +  and glaucous +
urn--shaped +, cylindric +, globose +, subpyriform +, ovoid +, obconic +  and hemispheric +
aromatic +
Disturbed coastal urban areas. +
2 times calyptra +
ovoid +  and obconic +
4 cm40 mm <br />0.04 m <br /> (?) +
axillary +  and terminal +
sessile +  and heterophyllous +
persistent +
basal +, subapical +  and inferior +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
coherent +, fused +  and distinct +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering winter–spring. +
Repert. Bot. Syst. +
bony +, hard +, leathery +  and membranous +
dispersed +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
pubescent +  and glabrous +
10 +  and 720 +
Eucalyptus polyanthemos +
Eucalyptus +
species +
pubescent +  and glabrous +
0 cm0 mm <br />0 m <br /> (2,500 cm25,000 mm <br />25 m <br />) +
tan +  and gray +