Polyalthia submontana (Jessup) B.Xue & R.M.K.Saunders

Species

Angiosperms > Magnoliales > Annonaceae > Polyalthia

Characteristics

Shrub or small tree to 7 m high. Shoots and branchlets appressed-pubescent, glabrescent. Leaves: petiole 1–3.5 mm long; lamina lanceolate, oblanceolate or ovate, 3.5–20 cm long, 0.9–6 cm wide, rounded or shortly auriculate and asymmetric at base, long acuminate at apex, glabrous above, glabrescent below; secondary veins 7–9 pairs. Flowers solitary, axillary, sessile or with stout pedicels c. 1.5 mm wide; bracts broadly ovate, 1.5–2 mm long. Sepals very broadly ovate, 2.5–3 mm long, 3–4 mm wide, acuminate or broadly acute, appressed-pubescent. Petals 6 in 2 whorls of 3, white-cream, crimson inside near base (petals sometimes yellow, green, pink or brown, fide Cooper & Cooper 2004: 23). Outer petals ovate or obovate, 5.2–7.2 mm long, 4.2–6 mm wide, obtuse. Inner petals narrowly ovate, obovate or oblong, 6.5–7.1 mm long, 3.2–4 mm wide, joined to form a shelter over the stamens (Cooper & Cooper 2004: 23). Stamens 35–70, 1.5 mm long. Carpels 9–15; ovary 1.2–1.5 mm long; ovules 2; stigma capitate. Apocarps ellipsoidal, 11–16 (–19) mm long, 9–13 (–16) mm wide, black, glabrous or nearly so; stipe 1–5 mm long. Seeds 1 or 2 (3).
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Growth form
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
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Mature height (meter) 7.0
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Environment

Grows in mesophyll and notophyll vine forest; lowland to upland rainforest.
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Hardiness (USDA) 8-12

Usage

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Cultivation

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Distribution

Polyalthia submontana world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:77123055-1
WFO ID wfo-0001334331
COL ID 3JPDL
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Haplostichanthus submontanus Polyalthia submontana

Lower taxons

Polyalthia submontana subsp. sessiliflora