Myoporum acuminatum

R. Brown

Prodr., 515. 1810.

Common names: Waterbush
WeedyIntroduced
Treatment appears in FNA Volume 17. Treatment on page 336.

Shrubs or trees, broadly spreading, 20–100 dm. Stems ascending to prostrate, much branched; twig tips and young leaves green to blackish, sticky. Leaves: blade dark green, narrowly elliptic, tapering proximally and distally, 5–14 × 1–3 cm, margins entire [obscurely serrate distal to middle], embedded glands inconspicuous. Flowers 6–8 per axil; corolla white with purple spots on lobes and distal tube, tube 3–4 mm, lobes equal, 3–4.5 mm, long-hairy adaxially; anthers slightly exserted from tube; ovary rugose. Capsules dark purple, ovoid, 4–7 mm. Seeds ovoid-oblong, 2.2–2.5 mm.


Phenology: Flowering Feb–May.
Habitat: Coastal sage scrub and chaparral.
Elevation: 0–100 m.

Distribution

Introduced; Calif., Australia

Discussion

Cultivated in coastal southern California, Myoporum acuminatum is established in nearby wildlands.

Myoporum montanum R. Brown, also cultivated in California, is similar to M. acuminatum, and some reports of M. acuminatum are possibly M. montanum. Myoporum montanum has narrower leaves (5–20 mm wide), anthers that are included in the tubes, smooth ovaries, and pink to light purple fruits.

Selected References

None.

Lower Taxa

None.
... more about "Myoporum acuminatum"
Robert E. Preston +
R. Brown +
5 cm50 mm <br />0.05 m <br /> (14 cm140 mm <br />0.14 m <br />) +
tapering +
not +, leathery +  and fleshy +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
campanulate +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
opposite;alternate +
Waterbush +
bilabiate +, regular +  and symmetric +
purple spots +  and white +
campanulate +
Calif. +  and Australia +
0–100 m. +
curved +  and straight +
not +  and abundant +
ovoid;globular +
loculicidal +, septicidal +  and dehiscence +
Coastal sage scrub and chaparral. +
alternate +  and opposite +
persistent +
cauline +  and basal +
long-hairy +
inconspicuous +
entire +  and subentire undulate toothed lobed divided or incised +
tenuinucellate +, unitegmic +  and hemitropous +
Flowering Feb–May. +
white +  and pale-brown +
ovoid-oblong +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
connate +  and distinct +
Weedy +  and Introduced +
4 +  and 8 +
ascending +  and prostrate +
2-5-lobed +  and capitate +
Myoporum acuminatum +
Myoporum +
species +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
green +  and blackish +
green +  and blackish +
perennial +, biennial +  and annual +
tree +  and shrub +