Coarse eucalyptus ( lat.Eucalyptus rudis ) is an evergreen tree , a species of the genus Eucalyptus ( Eucalyptus ) of the Myrtaceae family .
| Rough eucalyptus | |||||||||||||||||||||||||
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Eucalyptus rudis Endl. | |||||||||||||||||||||||||
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Distribution and Ecology
In nature , the range covers the state of Western Australia - the area of the southwest coast from the Blackwood River to the Norsempton River and the area of southwest hills.
With a short-term decrease in temperature to −10 ° C, it freezes to the root; during frosts of 7-8 ° C, leaves and crown are severely damaged, and young plants are frozen to the root.
Botanical Description
A tree 10-15 m high with a short thick trunk and a wide spreading crown .
The bark on the trunk is coarse, dark gray, on branches smooth, falling.
Young leaves are opposite, sitting, in an amount of 4-6 pairs, short-leaved , ovate, rounded, less commonly widely lanceolate, 10 cm long, 7.5 cm wide, bluish. Adults - alternate, petiolate, narrow or widely lanceolate, sometimes sickle-shaped, 10-15 cm long, 1-2 cm wide, spiky.
Inflorescence - axillary 4-10- flower umbrellas ; the leg of the umbrella is cylindrical, rather thin, 10-15 mm long; pedicels are sharp-ovate, 9-12 mm long, 5-9 mm in diameter; the lid is widely conical or coracoid, two to two and a half times longer than the receptacle tube; anthers are movable, obovate, open with parallel slits; the piece of iron is rather small, ovoid.
Fruits on the legs, hemispherical or widely cubic, 5–9 mm long, 10–12 mm in diameter; the disk usually stands out well, convex, the rim is sharp; wings strongly extended and more often bent.
Blossoms in the homeland in September - December; on the Black Sea coast of the Caucasus - in May - June.
Meaning and Application
Wood from brown to pale reddish brown, not strong enough.
Classification
Representatives
A number of subspecies are distinguished within the species [2] :
- Eucalyptus rudis subsp. cratyantha brooker & hopper
- Eucalyptus rudis subsp. rudis
Taxonomy
The coarse Eucalyptus species is a member of the Eucalyptus genus of the subfamily Myrtoideae of the Myrtaceae family of the Myrtales order .
| 13 more families (according to APG II System ) | 130 more births | |||||||||||||||
| Myrrhaceae order | subfamily Myrtle | kind of eucalyptus rough | ||||||||||||||
| Department of Flowering, or Angiosperms | Myrtov family | clan eucalyptus | ||||||||||||||
| another 44 order flowering plants (according to APG II System ) | 1 more subfamily (according to APG II System ) | more than 700 species | ||||||||||||||
Notes
- ↑ For the conventionality of specifying the class of dicotyledons as a superior taxon for the plant group described in this article, see the APG Systems section of the Dicotyledonous article .
- ↑ According to the APNI website (see the "Links" section).
Literature
- Trees and shrubs of the USSR. Wild, cultivated and promising for introduction. / Ed. volumes S. Ya. Sokolov . - M. - L .: Publishing House of the Academy of Sciences of the USSR , 1960. - T. V. Angiosperms. Families Myrtle - Olive. - S. 45–46. - 544 p. - 2200 copies.