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Clematis: From the Greek klema 'vine', alluding to the vine-like habit of many species
Current Threat Status
2012 - Not Threatened
Previous Threat Status
2009 - Not Threatened
2004 - Not Threatened
Clematis forsteri J.F.Gmel.
Cream-flowered vine with variable shaped leaflets in threes
Vascular - Native
Clematis australis var. rutifolia (Hook.f.) Allan; Clematis hexasepala var. rutifolia Hook.f.; Clematis colensoi Hook.f.; Clematis colensoi var. rutifolia (Hook.f.) Hook.f.; Clematis hexapetala L.f.; Clematis hexasepala DC.; Clematis australis Kirk
Endemic. North and South Islands. From Auckland area south to northern Westland and Canterbury
Lowland forest and forest margins, especially forest margins, open spaces and streamsides
Variable evergreen woody climber; stems to 5 m long, 5-10 mm diam. at base; branchlets grooved, sparsely hairy when young, becoming glabrous. Leaves 3-foliate, opposite, 3-10(-16) x (3-)4-8(-14) cm; petioles (1-)2-5(-7) cm long, stout, glabrous. Leaflets 14-55 x 9-28, simple to pinnate, simple leaflets lanceolate to deltoid, margins crenate, serrate or deeply pinnatifid to bipinnatifid, apices apiculate, base attenuate to truncate, petiolules 10-60 mm long, grooved, twining, glabrous or sparsely hairy, hairs white, becoming glabrate; midvein and secondary veins visible above, more obvious below; lamina thin to coriaceous, dark green to grey-green, tip acute, base truncate to subcordate, undersides paler. Juvenile leaves larger, thinner. Inflorescences unisexual, conspicuous, of solitary or 2-10-flowered clustered in leaf axils or in dichasial cymes of 5-10 flowers; pedicels 25-95 mm long moderately to densely hairy; inflorescence bracts 3-13(-18) x 1-4(-8), linear to elliptic, acute to obtuse, paired, united, inserted about middle of pedicel, glabrous to moderately hairy. Flowers spicey scented. Male to 4 cm diam., sepals 5-6, narrowly to broadly elliptic, lanceolate or ovate, imbricate, glabrous or sparsely silky hairy above (rarely glabrous above), silky hairy to hairy beneath, 10-25 x 3-13 mm, cream, base often flushed red-brown; stamens 20-37, anthers 2.4-3.5 mm long, filaments glabrous., 3-11 mm long. Female sepals 5-6(-7), similar to male, 13-25 x 3.8-7 mm; Carpels 35-48; staminodes 1-6. Achenes hairy, elliptic, or rarely narrowly elliptic, narrowed to apex, compressed, margin thickened and distinct, surface unornamented or occ. ridged, (2.6-)3.0-4.5(-5.1) mm long, styles (15-)20-35(-40) cm long at fruiting, white-plumose for most of length, glabrous or with short hairs at base.
Similar to the white larger-flowered C. paniculata. Also similar to both C. foetida and C. cunninghamii both of which have brownish hairs on young leaves and elsewhere. Closest to C. petriei from which it can be distinguished by the yellow-green evenly coloured and near-glabrous above sepals and the narrower more pointed floral bracts.
Main Flower Colour
Other Flower Colour
2n = 16
This page last updated on 28 Oct 2014