Brooms:

	Scotch broom Cytisus scoparius	Portuguese broom Cytisus striatus	French broom Genista monspessulana	Spanish broom Spartium junceum	bridal broom Retama (= Genista) monosperma
stems	usually 5-angled +/- star-shaped in x-section	8-10-ridged round in x-section	8-10-ridged round in x-section	finely ribbed round in x-section	finely ribbed round in x-section slender, lax
leaves	compound, leaflets 3, sometimes single on new twigs deciduous	compound, leaflets 3, sometimes single on new twigs deciduous	compound, leaflets 3, usually dense   evergreen	simple, sparse     deciduous	simple, sparse     deciduous
flowers	single or paired in leaf axils	single or paired in leaf axils	4-10 in head-like clusters at ends of short axillary branchlets	several in open racemes at stem tips	2-20 in short axillary racemes or clusters
petals	yellow or partially to entirely dark red	yellow	yellow	yellow	white
calyx	2-lipped, top lip minutely toothed     glabrous	2-lipped, top lip minutely toothed     pubescent	2-lipped, top lip 2-lobed to near middle, lower lip shallow (1-)3-lobed pubescent	1-lipped, parted to base on top (rarely 2-lipped & 5-lobed) glabrous	2-lipped, purplish, top lip 2-lobed to near middle, lower lip shallow 3-lobed glabrous
pods	flattened glabrous with margins densely lined with long hairs 2-5 cm long ~ 1 cm wide	slightly inflated densely covered with long hairs     1.5-5 cm long ~ 1 cm wide	slightly flattened densely covered with long hairs     1-3 cm long ~ 0.5 cm wide	slightly flattened densely covered with long hairs     4-11 cm long ~ 0.5 cm wide	spherical to ovoid glabrous   do not split in half ~ 1 cm long nearly as wide