1 "Leaves with secondary venation unbranched between midrib and margin (craspedodromous); hairs on calyx of two colours and lengths, some long and rigid; anthers basifixed, 0.8-1 mm long" 2 1 "Leaves with secondary veins looping and joining (brochidodromous: this can be difficult to observe in specimens with revolute leaf margins); hairs of calyx of uniform length and colour, not long and rigid; anthers versatile, <0.5 mm long" 4 2 "Leaves spine-tipped; flowers orange-red or red; style with a conspicuous tuft of white hairs behind the stigma" "Chorizema dicksonii" 2 "Leaves not spine-tipped; flowers yellow; style with scattered hairs" 3 3 "Leaves narrow-ovate, -elliptic or -oblong, margins flat or somewhat folded up; leaves rarely larger towards top of stem" "Chorizema carinatum" 3 "Leaves narrow-obovate or -spathulate, margins recurved; larger leaves towards top of stem" "Chorizema spathulatum" 4 "Tertiary venation conspicuously reticulate; petal colours orange on standard and pink on wings, with variations; keel-petals with marginal papillae" 5 4 "Tertiary venation obscure; petals yellow with red markings; keel-petals lacking papillae" 22 5 "Leaves without spines on the margin and the apex never spine-tipped" 6 5 "Leaves with spine-tipped lobes or teeth on the margin and/or the apex spine- tipped" 15 6 "Leaves linear or very narrow-ovate (broad leaves never present); margins strongly recurved to revolute" 7 6 "Leaves broad- or narrow-ovate, obovate, rhombic or elliptic (if narrow-ovate or linear then broad leaves usually present lower on stem); margins recurved to flat" 11 7 "Leaves 20-50 x 2-4 mm; keel-petals obtuse or rarely acute at the apex" "Chorizema obtusifolium" 7 "Leaves 8-35 x 1-3 mm; keel-petals acute, acuminate or attenuate at the apex" 8 8 "Leaves strongly recurved or circinate at apex; bracts and bracteoles persistent; calyx-lobes c. as long as the tube; raceme open, with 1-4 flowers" "Chorizema circinale" 8 "Leaves almost straight, slightly recurved or uncinate at apex; bracts and bracteoles caducous; calyx-lobes usually longer than the tube; raceme often crowded, with 5-10 flowers" 9 9 "Leaves linear, c. 1mm broad; standard scarcely longer than the calyx; apex of the keel long-acuminate or attenuate, 2-4 mm long" "Chorizema ulotropis" 9 "Leaves very narrow-ovate or linear, 1.5-2-5 mm broad; standard much longer than the calyx; apex of the keel acute or acuminate, less than 2 mm long" 10 10 "Leaves c. 10 mm long (4-15 mm), uncinate; calyx-lobes narrow, acute, indumentum of appressed, silvery hairs" "Chorizema uncinatum" 10 "Leaves c. 20 mm long (10-35 mm), scarcely uncinate; calyx-lobes subulate, indumentum of spreading, greyish hairs" "Chorizema cytisoides" 11 "Stems twining; stipules 3-5 mm long; leaves herbaceous" "Chorizema diversifolium" 11 "Stems never twining; stipules absent or if present less than 3mm long; leaves usually coriaceous" 12 12 "Shrubs with sprawling or straggling stems; leaves rhombic, broad-ovate or -obovate, rarely narrow; flowers 2-7 per raceme, reddish with a conspicuous yellow mark at the base of the standard; stigma oblique" "Chorizema rhombeum" 12 "Shrubs with erect or spreading stems; leaves broad- or narrow-ovate or almost linear; flowers 5-20 per raceme, orange or pink with a small yellow mark at the base of the standard; stigma capitate" 13 13 "Stems angular, often 3-sided; leaves usually complicate, thick (lower leaves may be almost flat)" "Chorizema trigonum" 13 "Stems terete, striate or ridged, not angular or &sided; leaves flat or with recurved margins, not conspicuously thick" 14 14 "Stems erect or sprawling, branched; leaves scattered, margins strongly recurved; calyx with scattered hairs" "Chorizema glycinifolium" 14 "Stems erect with few branches; leaves crowded, margins slightly recurved or flat; calyx densely hairy" "Chorizema reticulatum" 15 "Leaves entire or crenulate, without spines on the margin (apex may be spine- tipped)" 16 15 "Leaves with spine-tipped lobes or teeth, rarely the teeth very shallow and the margin appearing almost entire" 18 16 "Leaves broad-ovate or -cordiform, very undulate, margins not recurved or revolute" "Chorizema nervosum" 16 "Leaves linear or very narrow-ovate, never undulate, margins recurved or revolute" 17 17 "Keel-petals long-acuminate or attenuate, apex 2-3.5 mm long; short axillary shoots rarely developed; racemes few, terminal and in only the uppermost axils" "Chorizema rhynchotropis" 17 "Keel-petals acute or shortly acuminate, apex 0.5-1.5 mm long; short axillary shoots well developed; racemes usually numerous, terminal and axillary" "Chorizema aciculare" 18 "Apex of the leaf entire, triangular, longer than any of the teeth or lobes along the margin" "Chorizema ilicifolium" 18 "Leaves with +/- evenly spaced teeth or lobes extending to the apex" 19 19 "Stems long, scrambling; leaves with at least some of the spines on the margin retrorse; calyx-lobes f twice as long as the tube" "Chorizema retrorsum" 19 "Stems erect or spreading; leaves with spreading spines on the margin; calyx-lobes f as long as the tube" 20 20 "Leaves bullate, margins recurved; indumentum of dense, spreading hairs on racemes and underside of leaves" "Chorizema varium" 20 "Leaves not bullate nor with margins recurved; indumentum of scattered, appressed or loosely spreading hairs on racemes and underside of leaves" 21 21 "Low, open shrub often with flexuose branches; flowers small, the calyx 4-5 mm long, standard 7-9 mm long; pod scarcely stipitate" "Chorizema nanum" 21 "Shrub with branches erect or diffuse; flowers large, the calyx 5-7 mm long, standard 10-13 mm long; pod stipitate" "Chorizema cordatum" 22 "Leaves linear, narrow-elliptic or occasionally narrow-obovate, margins recurved or revolute" "Chorizema racemosum" 22 "Leaves broad- or narrow-obovate or occasionally elliptic, flat, complicate towards the apex or with margins slightly recurved" 23 23 "Branches erect or spreading, usually spinescent; wing-petals strongly curved; keel acute, much shorter than the wing" "Chorizema genistoides" 23 "Branches prostrate or decumbent, never spinescent; wing-petals gently curved; keel acute or acuminate, almost as long as the wings" "Chorizema humile"