Pomaderris Labill.

Genus

Angiosperms > Rosales > Rhamnaceae

Characteristics

Pubescent shrubs or small trees, evergreen. Spines absent. Indumentum of stellate, and usually, simple and/or bifid hairs on young stems, leaves and flowers. Glands absent or cryptic. Leaves alternate, petiolate, simple, penniveined, adjacent lateral veins sometimes connecting distally (brochidodromous); margin entire or obscurely toothed, plane or recurved; upper surface glabrous or hairy, lower surface hairy. Stipules paired, scarious, free, usually deciduous. Inflorescence of cymes, often paniculate, terminal and/or upper-axillary; flowers bisexual, 5-merous; hypanthium cup-shaped (sometimes shallowly); calyx 5-lobed, spreading or recurved at anthesis, the sepals mostly deciduous soon after anthesis; petals present or absent, linear to spathulate, deciduous; stamens free, or rarely, shortly adnate to the petal base, usually longer than petals (when present); disc apparently absent, to conspicuous and forming a ring within the androecium; ovary inferior to superior, 3-locular; style 3-fid, stigmas linear to claviform. Fruit a schizocarp, splitting to release 3 woody, 1-seeded pyrenes; torus basal to subapical; pyrenes usually with a membranous ‘window’ on the inner face through which the seed is released. Seed with smooth, hard testa, with a small basal aril.
More
Evergreen shrubs or small trees, not armed, with stellate hairs often forming a tomentum, sometimes with simple hairs as well. Lvs alternate, small to large. Stipules deciduous or persistent, small. Fls small, in cymes, ☿, often aggregated to form large panicles, 5-merous, pedicellate. Calyx with triangular lobes. Petals sometimes 0, not forming a hood or enclosing anthers; claw short and narrow. Filaments bent downwards in upper part, > petals. Disc annular, inconspicuous. Ovary apparently inferior through immersion in combined calyx tube and disc, 3-celled; style 3-lobed; stigmas simple. Fr. small, capsule-like, 3-valved, loculicidal, with upper part protruding above calyx tube, dehiscing to release 3 cocci (each consisting of 1 seed and surrounding endocarp). Seed smooth, with thickened funicle widened to form a cup-shaped aril.
Fls in corymbs or panicles, bracts us. falling early; calyx adnate to ovary, of 5 triangular sepals; petals 5 or absent, clawed, attached to staminal filaments; stamens 5, upper part of filament bent sharply downward in bud. Ovary ± sunk in calyx-tube, without disk, 3-loculed, style ± divided, stigmas 3. Fr. dry, splitting to release 3 cocci, each opening on the inward side by a slit or opercular value; seeds 1 per coccus, smooth, funicle aril-like. Woody shrubs with alt. lvs, us. with stellate hairs. About 40 spp. of Australia and northern N.Z. (about half the spp. erected with very brief diagnoses by N. A. Wakefield, Vict. Nat., Melb. 68, 1951, 140-143). Of the 8 N.Z. representatives 5 are here treated as endemic spp. or vars.
Life form -
Growth form shrub
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Generally high in saponins and one species (Pomaderris kumeraho) is used to make soap in New Zealand. Several species are amenable to horticulture and grown for their bright (but short-lived) flowers and/or hedging potential.
Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Pomaderris unspecified picture

Distribution

Pomaderris world distribution map, present in Australia and New Zealand

Identifiers

LSID urn:lsid:ipni.org:names:33501-1
WFO ID wfo-4000030863
COL ID 63P2R
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Pomaderris

Lower taxons

Pomaderris phylicifolia Pomaderris phylicifolia Pomaderris aurea Pomaderris betulina Pomaderris apetala Pomaderris bodalla Pomaderris eriocephala Pomaderris elachophylla Pomaderris elliptica Pomaderris costata Pomaderris flabellaris Pomaderris clivicola Pomaderris brevifolia Pomaderris brunnea Pomaderris crassifolia Pomaderris cinerea Pomaderris cotoneaster Pomaderris cocoparrana Pomaderris coomingalensis Pomaderris walshii Pomaderris wendlandiana Pomaderris velutina Pomaderris adnata Pomaderris subcapitata Pomaderris subplicata Pomaderris tropica Pomaderris vacciniifolia Pomaderris vellea Pomaderris sericea Pomaderris prunifolia Pomaderris queenslandica Pomaderris racemosa Pomaderris reperta Pomaderris rotundifolia Pomaderris graniticola Pomaderris halmaturina Pomaderris hamiltonii Pomaderris helianthemifolia Pomaderris humilis Pomaderris ligustrina Pomaderris ledifolia Pomaderris virgata Pomaderris affinis Pomaderris angustifolia Pomaderris forrestiana Pomaderris gilmourii Pomaderris mediora Pomaderris kumeraho Pomaderris pauciflora Pomaderris pilifera Pomaderris precaria Pomaderris myrtilloides Pomaderris nitidula Pomaderris parrisiae Pomaderris oblongifolia Pomaderris ovaria Pomaderris pallida Pomaderris paniculosa Pomaderris obcordata Pomaderris andromedifolia Pomaderris buchanensis Pomaderris viridis Pomaderris argyrophylla Pomaderris aspera Pomaderris edgerleyi Pomaderris sieberiana Pomaderris rugosa Pomaderris briagolensis Pomaderris amoena Pomaderris oraria Pomaderris notata Pomaderris delicata Pomaderris brogoensis Pomaderris canescens Pomaderris grandis Pomaderris lanigera