Flora of North America species comparison

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Eucalyptus polyanthemos

Eucalyptus conferruminata

red box, silver dollar gum

bushy yate, spider gum
Habit 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. Trees or shrubs, to 5 m; trunk light gray or tan, smooth; bark shed in strips and short ribbons.
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.

petiole 0–1.2 cm;

blade light green, elliptic to elongate-elliptic, 5–9 × 1–4 cm, surfaces glossy.
Inflorescences

5–7-flowered, terminal or axillary, umbels in panicles.

7–19-flowered, umbels compact, globose.
Peduncles

1–4 cm.

distinctly flattened, 3–7 × 1–3 cm.
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.

hypanthium sessile, fused to adjacent hypanthia;

calyptra horn- or finger-shaped;

stamens yellowish green.
Capsules

ovoid or subpyriform, 5–6 mm, to 6 mm wide, glaucous;

valves 3 or 4, included.

connate; forming compact, globose cluster, 30–60 mm diam., not glaucous;

valves 3, strongly exserted, with persistent style remnants.

Eucalyptus polyanthemos

Eucalyptus conferruminata
Phenology Flowering winter–spring. Flowering spring–summer.
Habitat Disturbed coastal urban areas. Disturbed areas.
Elevation 0–200 m. (0–700 ft.) 60–100 m. (200–300 ft.)
Distribution
from FNA
CA; se Australia [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; sw Australia [Introduced in North America]
[BONAP county map]
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.

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

Eucalyptus conferruminata, commonly cultivated as a screen plant in southwestern coastal California, is often sold under the name E. lehmannii (Schauer) Bentham.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10. FNA vol. 10.
Parent taxa Myrtaceae > Eucalyptus Myrtaceae > Eucalyptus
Sibling taxa
E. camaldulensis, E. citriodora, E. cladocalyx, E. conferruminata, E. coolabah, E. globulus, E. grandis, E. mannifera, E. pulchella, E. robusta, E. sideroxylon, E. tereticornis, E. torelliana, E. viminalis
E. camaldulensis, E. citriodora, E. cladocalyx, E. coolabah, E. globulus, E. grandis, E. mannifera, E. polyanthemos, E. pulchella, E. robusta, E. sideroxylon, E. tereticornis, E. torelliana, E. viminalis
Name authority Schauer in W. G. Walpers: Repert. Bot. Syst. 2: 924. (1843) D. J. Carr & S. G. M. Carr: Austral. J. Bot. 28: 535, figs. 2, 11, 17, 20, 27B, 28A, 30. (1980)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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