Plant of the month 05/21: Drosera adelae

Our P o M for May is Drosera adelae, a “true North Queenslander” highlighted in Hugh’s presentation at our recent meeting.

Photo: Hugh Sweatman

Like other Drosera (about 150 species worldwide, commonly known as Sundews) D. adelae has mobile glandular hairs on its leaves, used to trap tiny insects from which the plant absorbs nutrients.

D. adelae is the southern-most of three Drosera species endemic to Queensland rainforests. Read more in Hugh’s article here.

Plant of the month 04/2021: Jacquemontia paniculata

Thanks to Cameron for nominating Jacquemontia paniculata (Convolvulaceae) for P o M and providing his fine photos.

Photo: Cameron Atkinson

Cam found an abundant display of Jacquemontia paniculata flowers on Castle Hill early this month, April 2021.

Photo: Cameron Atkinson

Jacquemontia paniculata is a slender vine, potentially quite widespread locally, but it’s easily overlooked for much of the year. It twines inconspicuously around the stems of other small plants until its dainty lilac flowers attract attention.

Photo: Cameron Atkinson

Russell’s photo (below) was taken in April 2010, suggesting this is a good month to keep an eye out for similar displays. However, it’s unclear whether Jacquemontia paniculata flowers so abundantly at the same time each year.

Photo: Russell Cumming

Botanical details are available at www.canbr.gov.au

Plant of the month 3/2021: Heritiera littoralis

Heritiera littoralis (Malvaceae, previously classified as Sterculiaceae) was selected as Plant of the Month during our March outing, against some strong competition from the fascinating mix of species at the Palmetum.

Although this species typically grows in low to moderate salinity conditions at the landward edge of mangrove forests, two specimens are thriving beside the Palmetum’s freshwater lagoon.

Photo: Greg Calvert

The small flowers, covered in fine hairs, develop into large keeled fruits that are tough and buoyant when ripe, well adapted for long-distance dispersal by water – see photo at the bottom.

Photo: Greg Calvert

Heritiera littoralis is distinctive from a distance on breezy days because upturned leaves flash intermittently like small mirrors within the dark green canopy, in keeping with the species’ common name, Looking-glass mangrove. On calm days, the leaves create a silvery-white glow under the canopy.

Photo: Julia Hazel

There is another large specimen in cultivation at Anderson Park, as Greg reminded us. If you have a seasonally wet and boggy corner of the garden, where it’s difficult to find a suitable plant, Heritiera littoralis might be worth a try. Just keep an eye out for those distinctive floating fruits when they wash up on the beach.

Photo: Greg Calvert

Botanical details are available in the Australian Tropical Rainforest Plants database.

Plant of the month 2/2021: Fagraea fagraeacea

Fagraea fagraeacea (Gentianaceae), with beautiful perfumed flowers, was a highlight of the recent NPQ outing to Paluma.

Photo: John Elliott

This was an unexpected new species for many of us but fortunately John had spotted it a few years ago, and then spent several days working out its ID. Very convenient now, to have a quick answer about an unfamiliar species!

Photo: John Elliott

Fagraea fagraeacea is endemic to North East Queensland, growing in well developed upland and mountain rain forest at altitudes of 300 to 1250 metres.

Botanical details for Fagraea fagraeacea are available in the Australian Tropical Rainforest Plants database.

Although not known in cultivation, this would be an interesting plant to try in a cool, moist spot if you manage to find seeds.

As yet fruits have not been observed on the Paluma specimen but they are expected to look similar to those of Fagraea fagrans (photo below), an Asian species that John photographed in Singapore.

Fagraea fragrans, photo: John Elliott

Plant of the month 01/2021: Tricoryne anceps

Good rains at the end of December sparked a tiny flowering bonanza amongst the smallest of our local native plants. Due to their size, many remain inconspicuous, even when flowering. Tricoryne anceps (Hemerocallidoideae) is a delightful exception.

Photo: Julia Hazel

Without flowers, Tricoryne anceps is easily overlooked as just another low-growing grass-like plant. Currently (Jan 2021) it is at its best, displaying lots of small golden flowers at the ends of its unusual flattened stems.

Photo: Julia Hazel

Curiously, this attractive plant seems to be unknown in cultivation, possibly due to difficult propagation. If any readers have experience with growing Tricoryne anceps, we would love to hear from you. Our contact details are available here.

Photo: Julia Hazel

Plant of the month 12/2020: Corymbia tessellaris

Thanks to Greg for nominating Corymbia tessellaris as our December Plant of the Month – something BIG for a change! More thanks to Greg for letting us use his fine photos.

Photo: Greg Calvert

Corymbia tessellaris occurs naturally in open woodlands of Eastern Queensland, extending into northern New South Wales. Under favourable conditions it can reach more than 30 metres in height.

Photo: Greg Calvert

Corymbia tessellaris is one of the easier eucalypts for beginners to identify, with its dark tesselated ‘stocking’ at the base of the trunk, and an abrupt transition to smooth pale grey bark above. Small longitudinal ridges on the urn-shaped capsules also aid identification.

Photo: Greg Calvert

Corymbia tessellaris has proven one of the most successful eucalypt species on revegetation sites in Townsville. As a bonus, when in flower these trees attract an abundance of birds and insects.

Photo: Greg Calvert

For more details, see our species page for Corymbia tessellaris.