| Habit (duration) | Annual or short-lived perennial | Annual or short-lived perennial | Annual |
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| Leaves (lower and middle cauline) |
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| Blade shape | Cordate to suborbicular or reniform | Cordate, suborbicular, reniform, ovate or oblate | Triangular to cordate, ovate, ovate-oblong or suborbicular |
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| Blade base | Cordate to deeply cordate | Cordate-reniform or truncate | Cordate or truncate |
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| Blade size (mm) | 5–40 × 8–45 | 3–35 × 4–35 | 10–70 × 10–60 |
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| Blade-petiole attachment | ca. 120 degrees (ca. patent) | ca. 180 degrees (same plane) | Not seen |
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| Inflorescence (length) (mm) | 15–95 | 16–40 | 20–60 |
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| Capitula | Radiate | Discoid | Disciform or obscurely radiate |
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| Peduncle (length) (mm) | 11–50 | 8–34 | 3–23 |
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| Involucre size (mm) | 5.3–7.4 long, 3.5–4.0 diam. | 6.3–8.0 long, 4.4–5.6 diam. | 7.0–9.5 long, 2.7–2.9 diam |
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| Involucre bracts (length) (mm) | ca. 5–6 | ca. 6–7 | ca. 7–8 |
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| Ray florets per capitulum | 3–6 | Absent | Absent, or obscurely radiate with ray florets scarcely longer than involucre |
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| Pappus | Bristles free, non-fluked, lacking hook-like apical appendages | Bristles free, non-fluked, lacking hook-like apical appendages | ca. 33% of bristles connate- fluked with grappling hook-like apical appendages |
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| Namibia, Northern to Central Namib Desert, from the Khumib River to just north of the Khan | Namibia, Northern to Central Namib Desert from the | Namibia, from the Brandberg in the Central Namib Desert to Aroab in the southeast and to the |
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| Distribution (Fig. 4) | River, ca. 20–32 km from the coast in the north to ca. 30–60 km in the south; largely confined to the Kaokoveld Centre of Endemism | Khumib to the Kuiseb River, from the coast to ca. 15 km inland in the north to ca. 35 km inland in the south | Orange River in the south, ca. 57–100 km from the coast in the north to ca. 90–400 km in the south; South Africa, Northern Cape Province; Northern Africa |
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