Clethra papuana var. papuana

Variety

Angiosperms > Ericales > Clethraceae > Clethra > Clethra papuana

Characteristics

Shrub or treelet, (1-)3-6(-8) m, more rarely a tree up to 15 m, bole up to 10 m by 30 cm. Branchlets at tips rusty subvillous-tomentose. Leaves elliptic or obovate-elliptic, sometimes oblong-elliptic, rarely elliptic-lanceolate, apex shortly subacutely acuminate, rarely rather blunt (more acutely acuminate in sterile shoots), base inequilateral, broadly cuneate to subtruncate-obtuse, coriaceous, firm, younger ones with stellate and fascicled hairs mainly along midrib and nerves above, clothed all over beneath by a dark rusty subvillous tomentum formed by stellate and fascicled hairs, mature ones glabrate above, dark green in the fresh state there, under-surface rusty-to greyish-or (almost silvery-) tomentulose (the large fascicled hairs having mostly disappeared by then), entire or shortly irregularly serrate-dentate (more deeply and sharply serrate in sterile shoots), (4-)5-8(-12) by 2-4(-5.5) cm, variable in size even in the same specimen, sometimes microphyllous, nerves 12-14 pairs, much spreading, ± inarching at or a little before the edge, well raised beneath, veins not much conspicuous beneath, reticulation faint; petiole rusty-tomentulose, (1-)1.2-1.6(-1.8) cm. Racemes panicled, erect, all over rusty-tomentose, flowers generally densely arranged, rarely up to 15 cm; rachis robust. Pedicels thickish, 1-2 mm (up to 4 mm in fruit), bracts thickish, subulate, caducous. Calyx lobes oblong-ovate, 3-3.5(-4) mm. Petals not rarely connate or coherent at base, obovate-spathulate, edge slightly erose, white. sometimes pale cream or suffused with red, glabrous, slightly scented, c. 3.5 by 2 mm. Filaments glabrous, hardly 2 mm; anthers +-obcordate, 0.8 mm. Ovary almost villous; style glabrous, shortly trilobed, (1-)1.2-1.5 mm (hardly 2 mm in fruit). Capsule subglobose, c. 3 mm ø. Seeds ovoid-oblong, irregularly angular, 0.8-1 mm.
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Foliage retention deciduous
Sexuality hermaphrodite
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Mature height (meter) 3.0 - 6.0
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Environment

In (mossy) Nothofagus-Conifer-forest edge or in open heath vegetation on crest, 1800-2600 m. Fl. Oct.-Jan.
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Hardiness (USDA) 8-12

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Cultivation

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Distribution

Clethra papuana var. papuana world distribution map, present in Anguilla, Iceland, and Papua New Guinea

Identifiers

LSID urn:lsid:ipni.org:names:77167919-1
WFO ID wfo-0000889744
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Clethra papuana var. papuana