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Drury, D. G. 1973: Annotated key to the New Zealand shrubby Senecioneae-Compositae and their wild and garden hybrids. New Zealand Journal of Botany 11: 731–784.

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Drury, D. G. 1973: Annotated key to the New Zealand shrubby Senecioneae-Compositae and their wild and garden hybrids. New Zealand Journal of Botany 11: 731–784.
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Pithy, soft-wooded, resinous shrubs, shrub-trees, or trees with cortical stem sclereids; leaves alternate, petiolate, arising from multilacunar nodes, not crowded at the ends of branches; petioles terete in section with a complex internal vasculature; blade pinnatinerved, nerves with a lignified bundle sheath, tomentose below with simple T-shaped hairs; capitula small, heterogamous, discoid, subradiate or radiate, disposed in simple to complex panicles borne terminally on axillary branches; involucral bracts 8(-9) in one whorl; florets 8-17, creamy white; hermaphrodite florets 4-11; corollas actinomorphic, 5-lobed to c. 2/3 way to filament insertion; female florets 4-6 in the outermost whorl; female corollas either tubular and equally 3-5 lobed with staminodes, or subligulate with the inner 1-2 lobes shorter than the outer 2-3 lobed ligule, or ligulate with ligule entire or 2-3 toothed and no longer than the tube; stamen-fllament-collar cylindrical; anther fibrous-layer thickenings polarised; achenes hairy with duplex round-tipped hairs; chromosomes number n=30 (Hair & Beuzenberg 1959) for B. repanda J. R. et G. Forst. and variety fragrans (syn. B. rangiora Hort.)
Lamina folii rotunda aut fere orbiculata, apice aut acuta obtusa, laete viridis; margines integrae aut non profunde sinuatae; fiores (12—) 13-14 (-17), fiores hermaphroditi circa 8.
Differt a Senecione perdicioide Hook. f. laminis ellipticis vel late ellipticis vel rarius late oblongo-ellipticis, subter pilis gossypinis indutis, phyllaris 8, floribus femineis 4-5, floribm hermaphroditis 7-9.

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VEGETATIVE KEY TO GROUPS I-VII

1.
Leaves clearly petiolate with the blade and petiole well differentiated, the latter sometimes rather short
2
Leaves sessile, sometimes with the blade narrowing imperceptibly into a stalk, more rarely with the basal portion of midrib bearing several pairs of pinnae
2.
Margins of leaf blade closely corrugated when viewed edge-on to give a pie-crust finish, but not wavy
Margins of leaf blade plane, not closely corrugated when viewed edge-on, sometimes wavy
3
3.
Leaf-bearing stem and lower blade surface completely obscured by persistent felted hair
4
Leaf-bearing stem and lower blade surface evident, not completely obscured by persistent felted hair, although occasionally covered with loose cottony hairs
4.
Petioles grooved above for most of their length, shield-shaped in section; eglandular leaf hairs never microscopically T-shaped
5
Petioles not grooved above for most of their length, rounded in section; eglandular leaf hairs variously microscopically T-shaped (symmetric or asymmetric)
5.
Margins of leaf blade serrate, dentate, sinuately toothed, or sinuate, but not crenate
Margins of leaf blade entire or crenate
6
6.
Primary branches of midrib more or less equally conspicuous, all arising at about the same angle to the midrib (best observed in dried leaves)
Primary branches of midrib near the base of blade longest and most conspicuous, often more acute to the midrib than the upper ones

Reproduced with permission from New Zealand Journal of Botany and The Royal Society of New Zealand Te Apārangi.

GROUP I (see also Senecio cassinioides X ? bellidioides p. 766)

1.
Margins of youngest leaves rolled away from the stem axis
2
Margins of youngest leaves rolled towards the stem axis
5
2.
Adult leaf blade divided at the base into about 5 pairs of pinnae, margins sharp-toothed; adult and juvenile leaves similar
Adult leaf blade completely entire; juvenile leaves toothed
3
3.
Adult leaves narrowly linear; margins rolled back to the midrib, and waisted at the primary veins, so appearing round-toothed; older stems covered with leaf bases
Adult leaves narrowly elliptic to elliptic-oblong; margins flat and entire; older stems covered with crescentic leaf scars
4
4.
Upper leaf surface green, glandular hairy; fold lines evident in young leaves
Upper leaf surface grey-cottony; fold lines absent in young leaves
5.
Leaves larger than 3.0 × 1.0 cm, crowded towards the tips of branches; older stems marked with numerous narrow crescentic leaf scars
6
Leaves smaller than 3.0 × 1.0 cm, close-set and sometimes imbricate along the branches; older stems covered with leaf bases
7
6.
Leaves tacky above, green beneath; margins serrately toothed
Leaves dry above, white-felted beneath; margins entire
7.
Leaves up to 10 × 2 mm
Leaves over 10 × 2 mm

Reproduced with permission from New Zealand Journal of Botany and The Royal Society of New Zealand Te Apārangi.

GROUP II

1.
Upper blade surface of younger leaves green, usually tacky and aromatic, especially in very young leaves; sometimes margined with a white rim of hair
2
Upper blade surface of younger leaves completely covered with grey hair, dry and inodorous; margined with a white rim of hair
2.
Upper surface of leaf blade with a distinct border of white hair at the margin; green upper surface not evident from below
Upper surface of leaf blade green to the edge; marginal corrugations rolled back to show as green crescents from below, especially in young leaves
3
3.
Leaf blade elliptic or narrowly obovate, up to 2 × as long as broad
Leaf blade narrowly obovate to oblong-obovate, normally > 2 × as long as wide

Reproduced with permission from New Zealand Journal of Botany and The Royal Society of New Zealand Te Apārangi.

GROUP III

1.
Mature leaves perfectly hairless, entire or wavy in outline with projecting hydathodes, not strictly toothed, rather fleshy, turning brown on drying; petioles rounded, not grooved above
Mature leaves with hairy veins on lower surface, margins of blade usually toothed, membranous or coriaceous, remaining green on drying; petioles grooved above
3
2.
Leaf blades 4-10 × 2-4 cm, narrowly to broadly obovatecuneate to elliptic-oblong in outline, coarsely and irregularly sinuate-dentate to sinuate and subentire
Leaf blades 5-12 × 1-2 cm, narrowly elliptic to narrowly oblong, entire to shallowly sinuate
3.
Margins of leaf blades strongly undulate; teeth without projecting hydathodes
4
Margins of leaf blades plane; teeth with projecting hydathodes
5
4.
Leaf blades oblong to elliptic-oblong, green beneath
Leaf blades elliptic to broadly elliptic, more rarely broadly oblong-elliptic, sometimes white-cottony beneath
5.
Shrubs with leaves >5 cm long including petiole; blade divided into pinnae at the base
6
Scrambling climber with leaves <5 cm including petiole; blade without basal pinnae
6.
Petioles about as long as blade
Petioles much shorter than blade

Reproduced with permission from New Zealand Journal of Botany and The Royal Society of New Zealand Te Apārangi.

GROUP IV

1.
Leaf blades as wide as petioles are long; felted, and rusty buff coloured beneath
Leaf blades distinctly wider than petiole length; whitish-felted beneath
2
2.
Leaf blades ovate-oblong, broadly oblong, or rotund, <3 × as long as petiole
3
Leaf blades narrowly elliptic to elliptic, 3 × or more as long as petiole
4
3.
Leaf blades rotund to almost isodiametric, rounded to the tip; margins entire or shallowly sinuate; upper surface glossy
5
Leaf blades broadly ovate, ovate-oblong, to broadly oblong in outline, tapering to the tip; margins triangularly toothed or lobed; upper surface usually matt (glossy in exposed leaves and in the bronze-purple and variegated cultivars)
4.
Blade margins coarsely and sharply double-toothed; young stems and petioles balding, purplish, blackening on drying
Blade margins entire with very small (1 mm) notches at the ends of main veins; young stems and petiole persistently white-felted, green under felted hair
5.
Petioles >5 cm, longer than or equal to ½ width of blade
Petioles <5 cm, shorter than or equal to ½ width of blade

Reproduced with permission from New Zealand Journal of Botany and The Royal Society of New Zealand Te Apārangi.

GROUP V

1.
Leaves crowded at tips of branches, internodes obscured; leaf blades narrowly elliptic to elliptic in outline
Leaves spaced along the young branches, internodes evident; leaf blades oblong-ovate or oblong-elliptic
2
2.
Leaves buff-felted beneath, particularly when dried; blades oblong- narrowly ovate; margins sinuately toothed
Leaves greyish-felted beneath, turning yellowish when dried; blades oblong-elliptic; margins serrately toothed

Reproduced with permission from New Zealand Journal of Botany and The Royal Society of New Zealand Te Apārangi.

GROUP VI

1.
Leaf blades resinous and sticky above, especially in young leaves; petioles and lower midrib green and hairless
Leaf blades dry above; petioles and lower midrib hairy
2
2.
Leaf blades persistently grey-hairy above; a prostrate or suberect shrub forming dense clumps up to 20 cm high and 25 cm wide
Leaf blades felted-hairy above when young, becoming green, often with a border of felt or hair at the margin; shrubs or small trees with ascending branches reaching more than 20 cm high and 25 cm wide
3
*3.
Thin transverse sections of young stem giving a turquoise green reaction with concentrated lactic acid
4
Thin transverse sections of young stem giving a pink reaction with concentrated lactic acid OR no reaction at all
5
4.
Leaf blades broadly elliptic or broadly ovate, dull green and microscopically glandular hairy above; margins entire
Leaf blades narrowly oblong, glossy and without glandular hairs above; margins shallowly round-toothed
5.
Margins of youngest visible leaves rolled towards the stem axis; resin canal present above median petiole bundle
6
Margins of youngest visible leaves rolled away from the stem axis; resin canal absent above median petiole bundle
6.
Leaf blades isodiametric or almost so, rotund to orbicular
Leaf blades distinctly longer than wide, mostly of the oblong or obovate series of shapes
7
7.
Upper blade surface with creamy white trellis-like markings, stronger at the confluences of marginal veinlets; when dried the course of the marginal veinlets is marked by raised resinous ridges
Upper blade surface green throughout, without raised marginal ridges when dried

Reproduced with permission from New Zealand Journal of Botany and The Royal Society of New Zealand Te Apārangi.

GROUP VII

1.
Leaf blades hairless except occasionally about the margins, and often glossy above, petioles not flattened
2
Leaf blades covered in hair above in all but old leaves; petioles somewhat flattened
3
2.
Upper blade surface resinous and sticky, especially in young leaves, dull green and rugose; margins round-toothed; petioles stem-clasping
Upper blade surface dry, smooth, and glossy green; margins entire; petioles usually supported on stem buttresses, not stem-clasping
4
3.
Leaf blade 1-2 × as long as petiole; leaves crowded at the ends of branches
Leaf blade about 4 × as long as petiole; leaves close-set along the branches
4.
Largest leaves including petiole up to 2.5 cm long
Largest leaves including petiole 3.5 cm or longer
5
5.
Leaf blades oblong-obovate
Leaf blades oblong- broadly elliptic

Reproduced with permission from New Zealand Journal of Botany and The Royal Society of New Zealand Te Apārangi.

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0928a1cf-6ad5-402d-b5d4-e3d48647ee2a
reference
Names_Plants
21 June 2006
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