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STEM | +|||||||||||||||||
Pubescence | +Strigose, trichomes antrorse | +Cinereous, trichomes straight | +Strigose, trichomes antrorse | +Strigose, trichomes retrorse | +Hispid, trichomes straight | +||||||||||||
LEAF | +|||||||||||||||||
Shape | +Rhombic to trullate | +Deltoid-ovate | +Ovate to deltoid-ovate | +Obovate to flabellate | +Obovate to flabellate | +||||||||||||
+ |
+1.3–3.6 × 1–3 | +0.5–1.2 × 0.7–1.5 | +1–2 × 0.5–1 | +1–1.5 × 0.5–1 | +1.5–3 × 1–2.5 | +||||||||||||
+ |
+Cuneate, decurrent | +Truncate | +Cuneate, decurrent | +Cuneate, decurrent | +Cuneate, decurrent | +||||||||||||
+ |
+Crenate-serrate | +Subentire | +Crenate-serrate | +Crenate-serrate | +Crenate-serrate | +||||||||||||
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+Bullate | +Smooth | +Bullate | +Bullate | +Bullate | +||||||||||||
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+Densely pubescent | +Cinereous, trichomes adpressed | +Densely pubescent | +Tomentulose | +Hispid | +||||||||||||
INFLORESCENCE | +|||||||||||||||||
Presence | +Absent (axillary flowers) | +Absent (axillary flowers) | +Present, terminal racemes | +Absent (axillary flowers) | +Present, axillary and terminal racemes | +||||||||||||
+ |
+4 (– 8) | +2–6 | +2–6 | +2 | +3 | +||||||||||||
CALYX | +|||||||||||||||||
Shape | +Tubular-campanulate | +Tubular-campanulate | +Tubular-campanulate | +Campanulate | +Tubular-campanulate | +||||||||||||
+ |
+5.5–8 | +5–5.5 | +5–7 | +5–6.8 | +5.5–6.5 | +||||||||||||
COROLLA | +|||||||||||||||||
Tube length (mm) | +7.7–9 | +5–6 | +8.5–9.5 | +7–9 | +7.5–9.5 | +||||||||||||
+ |
+3.8–6 | +3–4.7 | +4–4.6 | +4.5–6.5 | +5.6–6 | +||||||||||||
+ |
+5–8 | +3.5–5.5 | +5–6 | +7–7.5 | +ca. 6.6 | +||||||||||||
+ |
+Reclinate | +Reflexed | +Reclinate | +Reflexed | +Reclinate | +