Australian Tropical Rainforest Plants - Online edition

Argophyllum iridescens A.R.Bean & P.I.Forst.

Shrub (woody or herbaceous, 1-6 m tall)
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A. flowering branchlet x0.6. B. hair from upper leaf surface x40. C. lamina margin x2. © Queensland Government

Bean, A.R. & Forster, P.I. (2018) Austrobaileya 10(2): 219-221, Fig. 4A-C, Map 2. Type: "Queensland. Cook District: Mt Hedley, 3 km ENE of Rossville, Timber Reserve 165, 15 April 1999, P.I. Forster PIF24277 & R. Booth (holo: BRI [2 sheets + spirit]; iso: AD, CNS, K, L, MEL, NSW, US)."


Shrub c. 2 m high. Hairs on new growth white or creamy; hairs more than 10 cm from growing point creamy-white.


Petiole 10-15 mm long; fully expanded lamina elliptical, 89-174 mm long, 30-53 mm wide, 2.8-4.5 times longer than wide; 8-11 secondary veins on either side of midrib. Lamina apex acuminate; base cuneate, not oblique or occasionally oblique by up to 5 mm. Lamina margins denticulate, with teeth all about the same length, 30-49 on each side of the lamina, the teeth 0.3-0.7 mm long. Upper surface of fully expanded lamina green, glabrous or sparsely hairy; hairs appressed, 0.8-1.2 mm long. Lower surface of lamina white, hairs appressed; secondary veins white, raised; tertiary veins white, ± flush with indumentum.


Inflorescences axillary, paniculate, 33-77 mm long, densely tomentose, primary axis 28-63 mm long, secondary branches 5-15 mm long, bracts narrowly-deltate, 1.3-2.9 mm long. Pedicels 1.5-3 mm long; flowering hypanthium cupular, 3.4-3.6 mm diameter. Calyx lobes 1.3-1.5 mm long; petals 3.2-3.5 mm long, white, corolla appendages white, c. 1.2 mm long. Staminal filaments 1.3-1.5 mm long; anthers c. 0.7 mm long. Style 1.3-1.5 mm long; ovary 2-locular.


Capsules with cupular hypanthium, 3-3.3 mm long, 3.6-4.1 mm diameter, teeth 4. Seeds 0.45-0.6 mm long.


Features not available.

Distribution and Ecology

Endemic to NEQ, known from Mt Hedley south of Cooktown, and near Noah Creek. Grows on granite outcrops at the edge of rainforests.

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