1	"Plants with obvious leaves, mostly alternate; branches not articulated."	2
1	"Plants with opposite very reduced leaves or apparently leafless; younger branch internodes swollen and succulent, photosynthetic, apparently articulated (samphires)."	22
2	"Ovary half-inferior; fruiting perianths united in clusters; introduced species in coastal areas."	Beta
2	"Ovary superior; fruiting perianths free or variously fused; native and introduced species of various habitats."	3
3	"Fruiting perianth fused and succulent, frequently red, yellow or puce."	Enchylaena
3	"Fruiting perianth various but never succulent and berry-like."	4
4	"Flowers free from one another and fruiting perianth not or little changed from perianth at early flowering stages."	5
4	"Either flowers variously fused and/or fruiting perianth hardened or with various wings, spines or other modifications developing from early flowering stages (very occasionally these failing to develop in some individuals), or perianth absent and fruit subtended by modified bracteoles."	13
5	Herbs.	6
5	Shrubs.	10
6	"Herb with basal rosette of leaves; perianth segments 4, cartilaginous in fruit."	Scleroblitum
6	"Herbs without basal rosette; perianth segments 1–5, remaining unaltered in fruit."	7
7	"Glandular-pubescent herbs; perianth segments 1–4; stamens 1 or 2."	Dysphania
7	"Either plants not glandular-pubescent or perianth segments 5; stamens 1–5."	8
8	"Leaves semiterete; hairs, if present, simple; embryo spirally coiled."	Suaeda
8	"Leaves flattened; hairs glandular or vesicular (mealy); embryo in one plane."	9
9	"Perianth segments 5; stamens 1–3 only in terminal (on branches) bisexual flowers, lateral flowers female; fruit occasionally with inflated succulent pericarp."	Einadia
9	"Perianth segments 3–5; stamens 1–5; flowers mostly bisexual but some species with terminal (on branches) bisexual flowers and lateral female flowers; fruit only rarely (Chenopodium curvispicatum) with inflated succulent pericarp."	Chenopodium
10	"Leaves semiterete; hairs, if present, simple; embryo spirally coiled."	Suaeda
10	"Leaves flattened; hairs vesicular (mealy); embryo in one plane."	11
11	"Plants shrubby, mainly dioecious; stamens 5; fruit with inflated succulent pericarp."	Rhagodia
11	"Plants herbaceous or shrubby, mainly monoecious though flowers frequently bisexual; stamens 1–5; pericarp inflated and succulent or not."	12
12	"Perianth segments 5; stamens 1–3 only in terminal (on branches) bisexual flowers, lateral flowers female; fruit occasionally with inflated succulent pericarp."	Einadia
12	"Perianth segments 3–5; stamens 1–5; flowers mostly bisexual but some species with terminal (on branches) bisexual flowers and lateral female flowers; fruit rarely (Chenopodium curvispicatum) with inflated succulent pericarp."	Chenopodium
13	"Flowers mostly unisexual, the female flowers lacking a perianth but subtended by a pair of bracteoles that are variously free, fused or ornamented."	Atriplex
13	"Flowers bisexual or unisexual, all flowers with a perianth but this often much modified in fruit."	14
14	"Flowers fused in clusters of 2 or more."	Dissocarpus
14	"Flowers free."	15
15	"Fruiting perianth without appendages; cartilaginous to hardened."	16
15	"Fruiting perianth with various appendages."	17
16	"Herbs with a basal rosette of leaves; fruiting perianth cartilaginous; perianth segments 4."	Scleroblitum
16	"Small woody perennials without a basal rosette of leaves; fruiting perianth hardened; perianth usually 5-lobed or rarely 3- or 4-lobed."	Threlkeldia
17	"Fruiting perianth spinescent or with other cylindrical outgrowths joined by wings or free."	18
17	"Fruiting perianth with various wings, not spinescent."	20
18	"Fruiting perianth with 3–5 more or less cylindrical, soft appendages."	Malacocera
18	"Fruiting perianth spinescent."	19
19	"Fruiting perianth cylindrical with 5 spines arising from base of perianth lobes, the spines united into an apical cup-shaped structure."	Neobassia
19	"Fruiting perianth variously shaped with 1–6 (sometimes 8–15) spines or tubercles arising between the perianth lobes."	Sclerolaena
20	"Wings on fruiting perianth vertical."	Osteocarpum
20	"At least some wings on fruiting perianth horizontal."	21
21	"Flowers subtended by a pair of prominent spinescent bracteoles; embryo spirally coiled."	Salsola
21	"Floral bracts absent or minute, never spinescent; embryo in one plane."	Maireana
22	"Axillary inflorescences 5–9-flowered; plants spreading; stamens 2; perisperm absent."	Sarcocornia
22	"Axillary inflorescences 3-flowered; plants more or less low hemispherical shrubs; stamen 1; perisperm present"	Tecticornia