familyMyrtaceae
genusEucalyptus
speciesEucalyptus robusta

Eucalyptus robusta

Smith

Spec. Bot. New Holland, 39, plate 13. 1795.

Matt Ritter, Leslie R. Landrum
Common names: Swamp mahogany
Treatment appears in FNA Volume 10.

Trees, to 30 m; trunk reddish-brown, rough; bark persistent, deeply furrowed, soft, spongy, fibrous, rough on small branches. Leaves: petiole 1.5–3 cm, slightly flattened; blade lighter green abaxially, broadly lanceolate, 8.5–17 × 2.5–7 cm, surfaces glossy. Peduncles broadly flat­tened, 1.5–3 cm. Inflorescences 9–15-flowered, umbels. Flowers: hypanthium obconic to pyriform, 6–7 mm, length ± equaling calyptra; calyptra conic to rostrate, 10–12 mm; stamens white. Capsules cylindric, 10–18 mm, not glaucous; valves 3 or 4, fused after dehiscence, ± level with apex or included and joined across orifice.


Phenology: Flowering summer–fall.
Habitat: Disturbed areas.
Elevation: 0–200 m.

Distribution

Introduced; Calif., Fla., e Australia

Discussion

Eucalyptus robusta is known from Los Angeles, Monterey, Orange, San Diego, San Luis Obispo, Santa Barbara, Santa Cruz, and Ventura counties in California, and from Charlotte, Lee, Martin, and St. Lucie counties in Florida.

Selected References

None.

Lower Taxa

None.
... more about "Eucalyptus robusta"
RDF feed
Anther dehiscence
dehiscing +
Anther fixation
dorsifixed +  and basifixed +
Author
Matt Ritter +  and Leslie R. Landrum +
Authority
Smith +
Bark architecture
furrowed +
Bark architecture or pubescence
scaly +
Bark architecture or pubescence or relief
smooth +
Bark duration
persistent +
Bark pubescence or relief
rough +
Bark pubescence or texture
soft +
Bark texture
fibrous +  and spongy +
Blade architecture or shape
pinnate +
Blade base shape
cordate +
Blade coloration
lighter green +
Blade length
8.5 cm85 mm <br />0.085 m <br /> (17 cm170 mm <br />0.17 m <br />) +
Blade prominence
faint +
Blade shape
lanceolate +
Blade surface coloration
glandular +
Blade texture
submembranous +, papery +  and leathery +
Blade width
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Bract presence
absent +
Bracteole presence
absent +
Branch size
small +
Calyptra shape
conic +  and rostrate +
Calyptra some measurement
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Calyptra variability
equaling +
Calyx lobe arrangement
imbricate +
Calyx lobe fusion
fused +  and distinct +
Calyx lobe variability
equaling +
Capsule architecture or shape
nutlike +
Capsule pubescence
not glaucous +
Capsule shape
cylindric +
Capsule some measurement
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Common name
Swamp mahogany +
Distribution
Calif. +, Fla. +  and e Australia +
Elevation
0–200 m. +
Embryo coating
oily +
Embryo texture
starchy +
Endosperm presence
absent +
Endosperm quantity
scant +
Flower architecture
pedicellate +, sessile +, 5-merous +  and 4-merous +
Flower architecture or arrangement or growth form
solitary +
Flower atypical quantity
0 (4) +
Flower position
epigynous +
Flower quantity
4 +
Flower reproduction
unisexual +  and bisexual +
Fruits capsule architecture
thick-walled +
Fruits capsule architecture or pubescence or relief
smooth +
Fruits capsule coloration
brown +  and gray +
Fruits capsule pubescence
not +  and glaucous +
Fruits capsule shape
urn--shaped +, cylindric +, globose +, subpyriform +, ovoid +, obconic +  and hemispheric +
Fruits capsule texture
woody +
Growth architecture or function or pubescence
glandular +
Growth life cycle
young +
Growth odor
aromatic +
Habitat
Disturbed areas. +
Hair architecture
simple +
Hypanthium length
prolonged +
Hypanthium shape
obconic +  and pyriform +
Hypanthium some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Inflorescence architecture
9-15-flowered +
Inflorescence position
pseudoterminal +, terminal +  and axillary +
Introduced
true +
Lateral-vein course
straight +
Lateral-vein orientation
ascending +
Lateral-vein quantity
Several (?) +
Leaf architecture
sessile +  and heterophyllous +
Leaf arrangement
opposite +
Leaf duration
persistent +
Leaf life cycle
juvenile +
Leaf orientation
horizontal +
Margin architecture or shape
entire +
Margin shape
sinuate +
Number of lower taxa
0 +
Orifice fusion
joined +
Orifice position
included +
Ovary architecture
carpellate +
Ovary architecture or structure in adjective form
3-6-locular +
Ovary placentation
axile +
Ovary position
basal +, subapical +  and inferior +
Ovule architecture
bitegmic +
Ovule architecture or arrangement
multiseriate +
Ovule arrangement
biseriate +
Ovule atypical quantity
300 (500) +
Ovule presence
absent +
Ovule quantity
10;100 +
Ovule reproduction
sterile +
Peduncle prominence or shape
flat +
Peduncle some measurement
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Perianth part fusion
fused +
Petal arrangement
imbricate +
Petal fusion
coherent +, fused +  and distinct +
Petiole shape
flattened +
Petiole some measurement
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Phenology
Flowering summer–fall. +
Pistil quantity
1 +
Publication title
Spec. Bot. New Holland, +
Publication year
1795 +
Reference
None +
Seed-coat texture
bony +, hard +, leathery +  and membranous +
Seed density
dispersed +
Seed quantity
100 +
Seed shape
cuboid +
Seed some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Shrub architecture
unarmed +
Shrub growth form
clonal +
Shrub growth form or habitat
terrestrial +
Shrub orientation
erect +
Shrub pubescence
pubescent +  and glabrous +
Shrub reproduction
synoecious +
Stamen coloration
white +
Stamen prominence
showy +
Stamen quantity
10 +  and 720 +
Stamen reproduction
fertile +
Stigma quantity
1 +
Stipule derivation
true +
Style position relational
surrounding +
Style quantity
1 +
Surface architecture
petiolate +
Surface arrangement
alternate +
Surface life cycle
adult +
Surface orientation
vertical +
Surface pubescence
glaucous +
Surface reflectance
glossy +
Taxon family
Myrtaceae +
Taxon name
Eucalyptus robusta +
Taxon parent
Eucalyptus +
Taxon rank
species +
Tree orientation
erect +
Tree pubescence
pubescent +  and glabrous +
Tree some measurement
0 cm0 mm <br />0 m <br /> (3,000 cm30,000 mm <br />30 m <br />) +
Trunk coloration
reddish-brown +
Trunk pubescence or relief
rough +
Unit architecture
open +
Valve dehiscence
fused +
Valve position relational
level +
Valve quantity
4 (3) +
Volume
Volume 10 +
X chromosome quantity
11 +