Flora Zambesiaca

Keys

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Key to Cleome

Key notes from the flora:

Couplet 3a: flowers should be examined in bud as the anthers are often caducous.
1 a Leaves simple
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b – Leaves compound
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2 a Racemes lax; leaves widely spaced; stems, ovary and fruit rather sparsely and shortly pubescent
FZ account for Cleome monophylla
b – Racemes dense; leaves crowded; stems, ovary and fruit with long, patent, purplish hairs and shorter glandular hairs
FZ account for Cleome densifolia
3 a Stamens both fertile and sterile
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b – Stamens all fertile
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4 a Flowers golden-yellow; fertile stamens 2, staminodes 6–12; plant glaucous; leaves 3–9-foliolate; seeds usually pubescent
FZ account for Cleome diandra
b – Flowers pink to violet; fertile stamens 2–4, staminodes 2–4; leaves 3–5-foliolate,seeds glabrous
FZ account for Cleome maculata
5 a Bracts of inflorescence minute, caducous
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b – Bracts conspicuous, passing gradually into the leaves and often compound
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6 a Leaflets linear, up to 2 (3) mm. wide; mature capsule 4–7 cm. long
FZ account for Cleome macrophylla var. maculatiflora
b – Leaflets more than 2 mm. wide; mature capsule 7–10 cm. long
FZ account for Cleome macrophylla var. macrophylla
7 a Leaflets linear (occasionally broader in C. iberidella but then the 2 upper petals with a purple-margined yellow spot)
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b – Leaflets obovate, oblanceolate, oblong-lanceolate, rhomboid-elliptic, elliptic or lanceolate; petals sometimes bicoloured but not with a margined spot
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8 a Flowers sulphur-yellow; seeds tuberculate-reticulate, c. 1 mm. in diam.
FZ account for Cleome sulfurea
b – Flowers pinkish or purple; seeds transversely rugose or ridged, 1.3 mm. or more in diam.
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9 a Stamens 6–9; petals 5–9 mm. long; annual herbs up to 30 cm. tall
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b – Stamens 10–12; petals 10–20 mm. long; a coarse herb up to 1.6 m. tall
FZ account for Cleome hirta
10 a Leaves 5–7 (9)-foliolate
FZ account for Cleome rubella
b – Leaves 3–5-foliolate
FZ account for Cleome iberidella
11 a Seeds smooth, minutely longitudinally tessellate; leaflets sparsely pubescent with some scattered sessile glands
FZ account for Cleome bororensis
b – Seeds transversely ridged or striate; leaflets sparsely setulose-, harshly strigillose- or densely glandular-pubescent
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12 a Stamens 6; leaflets sparsely setulose-pubescent or glabrous
FZ account for Cleome ciliata
b – Stamens 8–13; leaflets densely strigillose- or glandular-pubescent
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13 a Gynophore and capsule glandular; valves with 8–9 longitudinal nerves; stems and leaves densely glandular-pubescent; leaflets 3–7
FZ account for Cleome oxyphylla
b – Gynophore glabrous; capsule minutely puberulous with about 3 longitudinal nerves; stems and leaves with a coarse strigillose pubescence;leaflets 3–5
FZ account for Cleome stricta